CN103705260A - Data transmitting system of digital medical imaging device based on optical fiber communications - Google Patents

Abstract

Translated fromChinese

一种基于光纤通信的数字医学成像设备的数据传输系统，有用于接收X射线的平板X射线传感器，平板X射线传感器输出端连接数据发送模块，数据发送模块通过光纤连接数据采集模块，数据采集模块通过PCI-E接口连接计算机。数据发送模块有依次连接的数据收发单元和第一光通信单元，数据收发单元的信号输入端连接所述平板X射线传感器信号输出端，第一光通信单元信号输出端通过光纤连接数据采集模块。数据采集模块有依次连接的第二光通信单元、数据采集存储单元、PCI-E接口芯片，存储控制单元连接还外部存储器。本发明实现了高分辨率的数字医学图像从图像传感器到计算机的实时、无压缩传输，解决医学成像设备和外部计算机之间实时、高速非压缩数据传输问题。

A data transmission system for digital medical imaging equipment based on optical fiber communication. There is a flat-panel X-ray sensor for receiving X-rays. The output end of the flat-panel X-ray sensor is connected to a data transmission module. Connect to the computer through the PCI-E interface. The data transmission module has a data transceiver unit and a first optical communication unit connected in sequence, the signal input end of the data transceiver unit is connected to the signal output end of the flat X-ray sensor, and the signal output end of the first optical communication unit is connected to the data acquisition module through an optical fiber. The data acquisition module has a second optical communication unit, a data acquisition storage unit, and a PCI-E interface chip connected in sequence, and the storage control unit is connected to an external memory. The invention realizes real-time, uncompressed transmission of high-resolution digital medical images from an image sensor to a computer, and solves the problem of real-time, high-speed uncompressed data transmission between medical imaging equipment and external computers.

Description

A kind of data transmission system of the digital medical imaging device based on fiber optic communication

Technical field

The present invention relates to a kind of data transmission system of digital medical imaging device.The data transmission system that particularly relates to a kind of digital medical imaging device based on fiber optic communication.

Background technology

Digitized medical imaging devices, conventionally by imageing sensor, data transmission blocks, data reception module, date processing and display module, formed, common form is that medical imaging devices comprises imageing sensor and data transmission blocks, outside computer comprises data reception module, date processing and display module, and medical imaging devices transmits data by certain high speed interface to computer.

Along with the raising of imageing sensor imaging resolution and frame per second, the data volume of the original image that imaging device obtains is increasing.The mode of imaging device output image can be divided into compression and the large class of non-compression two, or non real-time transmission and the large class of real-time Transmission two.Compress mode such as DTV adopts MPEG-2, the Video coding mode such as H.264, or digital camera adopts the picture coding modes such as JPEG, JPEG2000 to compress original image, reduce to transmit after data volume, but in medical imaging field, in order to guarantee not lose the details of image, seldom adopt compress mode.Non real-time transmission means be first by image buffer storage in local storage, then by slower circuit, transmit, for example digital camera first exists photo in storage card, then by USB2.0 interface by photo upload to computer; Real-time Transmission mode is that the image that imageing sensor is continued to obtain is transferred to receiving terminal incessantly, and real-time Transmission mode needs transmission bandwidth to be greater than the data rate of imaging.

In industrial application, high-resolution industrial camera adopts gigabit ethernet interface or USB3.0 interface to computer transmit image data.Medical imaging devices, take digital X ray machine as example, its previous data transfer mode adopting is that imageing sensor is with video format parallel output view data, and receiver module is a high-speed video capture card, by pci bus, data are inputted to computer, the shortcoming of this mode is to adopt multi-bit parallel transmission cable, and cable is thicker, and the reliability of connection is poor; At present new image sensor products has been equipped with gigabit ethernet interface, can transmit data by gigabit Ethernet, but the shortcoming of this mode be gigabit Ethernet limit bandwidth the frame per second of image transmitting.The X-ray plane sensor of Japanese HAMAMATSU company of take is example, the pixel clock of its C10502D type sensor when imaging is 30MHz, between valid data transmission period, A, two ports of B are exported the pixel data of a 14-bit simultaneously in each clock cycle, the highest data rate is (2x14-bit x30MHz)=840Mbps.While transmitting data by gigabit Ethernet, due to the expense of procotol and the time delay of hardware handles packet, generally can only realize the reliable and stable transfer of data of 600Mbps left and right, visible gigabit ethernet interface can not meet the real-time Data Transmission requirement of this imageing sensor.The new C10500D-42 type sensor of releasing of HAMAMATSU company has been equipped with gigabit ethernet interface, but this sensor only has port output data, the highest data rate is reduced to 420Mbps, cost is to have reduced imaging resolution (resolution of C10502D is 2268x60, and the resolution of C10500D-42 is 1480x60).

Summary of the invention

Technical problem to be solved by this invention is, provides a kind of employing optical fiber as transmission medium, can support the data transmission system of the digital medical imaging device based on fiber optic communication of higher imaging speed.

The technical solution adopted in the present invention is: a kind of data transmission system of the digital medical imaging device based on fiber optic communication, include for receiving the X-ray plane sensor of X ray, the outfan connection data sending module of described X-ray plane sensor, described data transmission blocks is by optical-fiber connection data acquisition module, and described data acquisition module connects computer by PCI-E interface.

Described data transmission blocks includes data transmit-receive unit and the first optical communication element, wherein, the signal input part of described data transmit-receive unit connects the signal output part of described X-ray plane sensor, the signal output part of described data transmit-receive unit connects the signal input part of the first optical communication element, and the signal output part of the first described optical communication element is by optical-fiber connection data acquisition module.

Described data transmit-receive unit adopts the PLD that can support LVDS interface.

The optical module that the optical module that the optical module that described optical communication element employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.

Described data acquisition module includes the second optical communication element, data acquisition memory element, PCI-E interface chip and external memory storage, wherein, the signal input part of the second described optical communication element is by the signal output part of the first optical communication element in optical-fiber connection data sending module, the signal output part connection data of the second described optical communication element gathers the signal input part of memory element, the signal output part of described data acquisition memory element connects PCI-E interface chip, described data acquisition memory element also connects external memory storage, the signal output part of described PCI-E interface chip connects the PCI-E interface of computer.

Described data acquisition memory element includes data transmit-receive unit, storage control unit and the PCI-E interface chip control unit of serial connection successively, wherein, the input of described data transmit-receive unit connects the signal output part of the second described optical communication element, described storage control unit connects described external memory storage, and the signal output part of described PCI-E interface chip control unit connects the signal input part of described PCI-E interface chip.

Described data transmit-receive unit adopts the PLD that can support LVDS interface.

The optical module that the optical module that the optical module that the second described optical communication element employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.

The data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present invention, realized real-time, the nothing compression transmission of high-resolution digital medical image from imageing sensor to computer, solve the transmission problem of the unpacked data in real time, at a high speed between medical imaging devices and outer computer, and bandwidth is low, the problem of poor reliability to have solved available data transmission means (parallel transmission, gigabit Ethernet transmission).

Accompanying drawing explanation

Fig. 1 is the transmission equipment entire block diagram of digital medical image;

Fig. 2 is data transmission blocks functional block diagram;

Fig. 3 is data acquisition module functional block diagram.

In figure

1: X-ray plane sensor 2: data transmission blocks

3: data acquisition module 4: computer

5: optical fiber 6:X ray

21: 22: the first optical communication elements in data transmit-receive unit

Within 31: the second, optical communication element 32: data acquisition memory element

33: external memory storage 34:PCI-E interface chip

321: data transmit-receive unit 322: storage control unit

323:PCI-E interface chip control unit

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, the data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present invention is described in detail.

As shown in Figure 1, the data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present invention, mainly completes the Digital Image Data that X-ray plane sensor is produced and transmits.Include for receiving theX-ray plane sensor 1 of X ray, in the present embodiment, X-ray plane sensor adopts the C10502D type X-ray plane sensor of HAMAMATSU company.The outfan connectiondata sending module 2 of describedX-ray plane sensor 1, describeddata transmission blocks 2 is byoptical fiber 5 connectiondata acquisition modules 3, and describeddata acquisition module 3 connectscomputer 4 by PCI-E interface.Data transmission blocks is carried out the forwarding based on optical fiber interface to the Digital Image Data of X-ray plane sensor acquisition, and data acquisition module receives the data of optical fiber interface forwarding and carries out the data interaction based on PCI-E bus interface modes with computer terminal.Data transmission blocks is connected by optical fiber with data acquisition module, and data acquisition module is connected by PCI-E interface with computer.PCI-E interface is current popular computer high speed bus interface, and the theoretical transmission rate of single channel reaches 2Gbps, and supports multiplexing, therefore in the future also can support more high-resolution image transmitting.Because fiber optic communication can realize the transfer rate that is greater than 1Gbps, adopt fiber-optic transfer mode than adopting the mode of gigabit Ethernet transmission and can support higher imaging speed.

As shown in Figure 2, describeddata transmission blocks 2 includes data transmit-receiveunit 21 and the firstoptical communication element 22, wherein, the signal input part of described data transmit-receiveunit 21 connects the signal output part of describedX-ray plane sensor 1, the signal output part of described data transmit-receiveunit 21 connects the signal input part of the firstoptical communication element 22, and the signal output part of the first describedoptical communication element 22 is byoptical fiber 5 connectiondata acquisition modules 3.

Described data transmit-receiveunit 21 adopts the PLD that can support LVDS interface, for example, the Cyclone of altera corp serial model No. is the fpga chip of EP3C25F324, EP3C16F484, EP4CE115F29C etc., also can select the PLD of other models on market.The optical module that the optical module that the optical module that describedoptical communication element 22 employing models are SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms, and also can adopt other model optical modules on market.

Described data transmission blocks utilizes the parallel data of the X-ray digital medical image that data transmit-receiveunit 21 sends X-ray plane sensor to carry out after the packing of Yi Zhengwei unit and parallel-serial conversion are processed exporting, and output serial signal is sent to the first optical communication element, the first optical communication element is converted into the signal of telecommunication of input optical signal and carries out the transmission based on optical fiber, in this implementation, select SFP-GE-SX-MM850-A as optical communication element.

As shown in Figure 3, describeddata acquisition module 3 includes the second optical communication element 31, data acquisition storage and control unit 32, PCI-E interface chip 34 and external memory storage 33, wherein, the signal input part of the second described optical communication element 31 is by the signal output part of the firstoptical communication element 22 inoptical fiber 5 connectiondata sending modules 2, the signal output part connection data collection storage of the second described optical communication element 31 and the signal input part of control unit 32, the signal output part of described data acquisition storage and control unit 32 is connected PCI-E interface chip 34, described data acquisition storage is also connected external memory storage 33 with control unit 32, the signal output part of described PCI-E interface chip 34 connects the PCI-E interface ofcomputer 4.

Described data acquisition storage and control unit 32 include data transmit-receive unit 321, storage control unit 322 and the PCI-E interface chip control unit 323 of serial connection successively, wherein, the input of described data transmit-receive unit 321 connects the signal output part of the second described optical communication element 31, described storage control unit 322 connects described external memory storage 33, and the signal output part of described PCI-E interface chip control unit 323 connects the signal input part of described PCI-E interface chip 34.

Described data acquisition storage and control unit 32 adopt the PLD that can support LVDS interface, for example, the Cyclone of altera corp serial model No. is the fpga chip of EP3C25F324, EP3C16F484, EP4CE115F29C etc., also can select the PLD of other models on market.The optical module that the optical module that the optical module that the second described optical communication element 31 employing models are SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms, and also can adopt other model optical modules on market.

Data transmit-receive unit is realized with above-mentioned PLD, and the data that this unit comes the second optical communication element transmission are gone here and there and changed Hou Yizhengwei unit and are stored in external memory storage, storage control unit is realized with above-mentioned PLD, waiting for that external memory stores is after enough view data, storage control unit arrives PCI-E interface unit by the transfer of data of buffer memory, pci interface unit is comprised of PCI-E interface chip control logic unit and PCI-E interface chip, PCI-E interface chip control unit is realized by above-mentioned PLD equally, it is correctly sent to PCI-E interface chip by the data of reception, PCI-E interface chip is input to computer by data with PCI-E bus interface modes, in the present embodiment, adopt the PEX8311 of PLX company chip as PCI-E interface chip.

The data transmission system of a kind of digital medical imaging device based on fiber optic communication of the present invention, X-ray plane sensor is exported to the data transmit-receive unit in data transmit-receive module by the view data collecting with parallel mode, data transmit-receive unit by parallel data pack and parallel-serial conversion after by the first optical communication element, through optical fiber, it is forwarded.The second optical communication element of data acquisition module receives the serial data transmitting by optical fiber and sends data transmit-receive unit to, data transmit-receive unit recovers parallel view data, and Bus Interface Unit is transferred to computer by image interface data through high speed bus interface.

Because bidirectional data transfers is supported in fiber optic communication, computer also can be by data acquisition module to the order of data transmission blocks transfer control.For example, the beginning of transmission system, the finish command and exposure parameter order etc.

Claims (8)

1. the data transmission system of the digital medical imaging device based on fiber optic communication, include for receiving the X-ray plane sensor (1) of X ray, it is characterized in that, the outfan connection data sending module (2) of described X-ray plane sensor (1), described data transmission blocks (2) is by optical fiber (5) connection data acquisition module (3), and described data acquisition module (3) connects computer (4) by PCI-E interface.

2. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 1, it is characterized in that, described data transmission blocks (2) includes data transmit-receive unit (21) and the first optical communication element (22), wherein, the signal input part of described data transmit-receive unit (21) connects the signal output part of described X-ray plane sensor (1), the signal output part of described data transmit-receive unit (21) connects the signal input part of the first optical communication element (22), the signal output part of described the first optical communication element (22) is by optical fiber (5) connection data acquisition module (3).

3. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 2, is characterized in that, described data transmit-receive unit (21) adopts the PLD that can support LVDS interface.

4. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 2, it is characterized in that, the optical module that the optical module that the optical module that described optical communication element (22) employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.

5. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 1, it is characterized in that, described data acquisition module (3) includes the second optical communication element (31), data acquisition memory element (32), PCI-E interface chip (34) and external memory storage (33), wherein, the signal input part of described the second optical communication element (31) is by the signal output part of the first optical communication element (22) in optical fiber (5) connection data sending module (2), the signal output part connection data of described the second optical communication element (31) gathers the signal input part of memory element (32), the signal output part of described data acquisition memory element (32) connects PCI-E interface chip (34), described data acquisition memory element (32) also connects external memory storage (33), the signal output part of described PCI-E interface chip (34) connects the PCI-E interface of computer (4).

6. the data transmission system of a kind of digital medical imaging device based on fiber optic communication according to claim 5, it is characterized in that, described data acquisition memory element (32) includes the data transmit-receive unit (321) of serial connection successively, storage control unit (322) and PCI-E interface chip control unit (323), wherein, the input of described data transmit-receive unit (321) connects the signal output part of described the second optical communication element (31), described storage control unit (322) connects described external memory storage (33), the signal output part of described PCI-E interface chip control unit (323) connects the signal input part of described PCI-E interface chip (34).

7. according to the data transmission system of a kind of digital medical imaging device based on fiber optic communication described in claim 5 or 6, it is characterized in that, described data transmit-receive unit (21) adopts the PLD that can support LVDS interface.

8. according to the data transmission system of a kind of digital medical imaging device based on fiber optic communication described in claim 5 or 6, it is characterized in that, the optical module that the optical module that the optical module that described the second optical communication element (31) employing model is SFP-GE-SX-MM850-A or model are M-D1203-L3320C or model are SFP-LX-SM1310 forms.

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