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CN105338254B - A kind of digital camera image data online acquisition Transmission system and operation method - Google Patents

A kind of digital camera image data online acquisition Transmission system and operation method Download PDF

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CN105338254B
CN105338254B CN201510904303.0A CN201510904303A CN105338254B CN 105338254 B CN105338254 B CN 105338254B CN 201510904303 A CN201510904303 A CN 201510904303A CN 105338254 B CN105338254 B CN 105338254B
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CN105338254A (en
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吴军
彭智勇
李俊
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Guilin University of Electronic Technology
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Abstract

本发明为一种数码相机影像数据在线采集传输系统及运行方法,本系统连接器一端的插头与数码相机的CF存储卡外形管脚相同,插在其卡槽内。连接器另一端连接包括FPGA和与DDR的处理控制模块,FPGA经传输模块接计算机。其运行方法为,开机后相机中心处理器发送初始化检测信号,FPGA正确反馈,完成初始化,相机准备摄影或录相;相机采集的影像数据向存储卡卡槽发送,经连接器进入FPGA、送入DDR缓存。一张照片或一段录相摄取完成FPGA自动将缓存于DDR的影像数据通过传输模块传送给计算机,并向相机反馈存储完成,相机准备下一次的摄影。本发明数码相机的影像数据可在线传送到计算机,实现实时摄影测量。结构简单,成本低,操作简便。

The present invention relates to a digital camera image data online collection and transmission system and its operation method. The plug at one end of the system connector is the same as the shape pin of the CF memory card of the digital camera, and is inserted into the card slot. The other end of the connector is connected to the processing control module including FPGA and DDR, and the FPGA is connected to the computer through the transmission module. Its operation method is as follows: after starting up, the central processor of the camera sends an initialization detection signal, and the FPGA feedbacks correctly, and the initialization is completed, and the camera is ready to take pictures or record videos; the image data collected by the camera is sent to the memory card slot, enters the FPGA through the connector, DDR cache. After a photo or a video is captured, the FPGA automatically transmits the image data buffered in DDR to the computer through the transmission module, and feedbacks to the camera that the storage is completed, and the camera is ready for the next shooting. The image data of the digital camera of the invention can be transmitted to the computer on-line to realize real-time photogrammetry. The structure is simple, the cost is low, and the operation is easy.

Description

一种数码相机影像数据在线采集传输系统及运行方法A digital camera image data online acquisition and transmission system and operation method

技术领域technical field

本发明涉及影像数据的传输技术,具体为一种数码相机影像数据在线采集传输系统及运行方法。The invention relates to image data transmission technology, in particular to an online acquisition and transmission system and operation method of digital camera image data.

背景技术Background technique

实时摄影测量是指在极短的时间内,一步完成从数字图像获取到取得所摄物体形状和位置信息全过程的测量技术,其处理时间不大于1/30秒。其突出的优点在于能迅速获取现场影像信息并识别物体确定其位置。此项技术被应用于智能机器人视觉导航、工业流水线产品质量检验、战场运动目标捕捉、航空摄影质量评估与引导、无人机应急遥感及灾害应急响应等众多行业、部门,市场前景广阔。Real-time photogrammetry refers to the measurement technology that completes the whole process from digital image acquisition to obtaining the shape and position information of the photographed object in one step in a very short period of time, and its processing time is not more than 1/30 second. Its outstanding advantage is that it can quickly obtain on-site image information and identify objects to determine their positions. This technology has been applied to many industries and departments such as intelligent robot visual navigation, industrial assembly line product quality inspection, battlefield moving target capture, aerial photography quality assessment and guidance, UAV emergency remote sensing and disaster emergency response, with broad market prospects.

昂贵的、工业级量测数码相机能一次完成实时摄影测量。Expensive, industrial-grade metrology digital cameras can perform real-time photogrammetry in one pass.

近年来,摄影测量及计算机视觉领域研究使用高性价比的一般数码相机摄取用于目标量测的影像信息,再通过光学系统、光电系统、信号和图像处理系统之间成像关系的综合计算,并且采用系统一体化设计及多种参数联合优化手段,实现了从相机采集的高质量影像数据获取所摄物体形状和位置测量数据的目的。此种系统无需贵重的量测数码相机,满足众多行业影像测量的低成本应用要求。In recent years, research in the field of photogrammetry and computer vision has used cost-effective general digital cameras to capture image information for target measurement, and then through the comprehensive calculation of the imaging relationship between optical systems, photoelectric systems, signal and image processing systems, and using The integrated design of the system and the joint optimization of multiple parameters achieve the purpose of obtaining the shape and position measurement data of the captured object from the high-quality image data collected by the camera. This kind of system does not require expensive measurement digital cameras, and meets the low-cost application requirements of image measurement in many industries.

此系统的不足在于数码相机采集的影像数据只能记录于相机内部大容量的各种存储卡内,必须等到摄影告一段落或全部完成后,从相机中取出存储卡,才能对影像数据进行下一步的处理。无法满足目标摄影并在线获取量测信息的实时摄影测量要求。但实际应用中,无论是对民用的摄影测绘还是国防军事或应急响应,实时监测迅速了解观测区的情况,具有重要的意义,尤其是在军事行动中,或者在灾害、突发事件发生时,时间就是生命!影像数据的在线采集传输是急迫需要解决的问题。The disadvantage of this system is that the image data collected by the digital camera can only be recorded in various large-capacity memory cards inside the camera. You must wait until the shooting has come to an end or all of it is completed before taking out the memory card from the camera before proceeding to the next step of the image data. processing. It cannot meet the real-time photogrammetry requirements of target photography and online acquisition of measurement information. However, in practical applications, whether it is for civilian photogrammetry or national defense or emergency response, real-time monitoring is of great significance to quickly understand the situation in the observation area, especially in military operations, or when disasters and emergencies occur. time is life! Online collection and transmission of image data is an urgent problem to be solved.

发明内容Contents of the invention

本发明的目的是设计一种数码相机影像数据在线采集传输系统,连接器的插头插接于数码相机的存储卡卡槽内,连接器的引线接出的另一端接口连接以FPGA芯片为核心的处理控制模块,处理控制模块经传输模块与计算机相连接。The purpose of the present invention is to design a digital camera image data online acquisition and transmission system. The plug of the connector is plugged into the memory card slot of the digital camera, and the other end of the lead wire of the connector is connected to the FPGA chip as the core. The processing control module is connected with the computer through the transmission module.

本发明的另一目的是设计一种数码相机影像数据在线采集传输系统的运行方法,数码相机初始化时,处理控制模块对相机中心处理器的检测反馈信号,数码相机采集的影像数据经处理控制模块缓存后,经传输模块在线传送给计算机。本发明用普通数码相机组装的系统,实现影像数据在线采集传输,可完成实时摄影测量,成本低、操作简单。Another object of the present invention is to design an operation method of a digital camera image data online acquisition and transmission system. When the digital camera is initialized, the processing control module detects the feedback signal to the camera central processor, and the image data collected by the digital camera is processed by the control module. After caching, it is transmitted to the computer online through the transmission module. The system assembled with common digital cameras in the invention realizes online collection and transmission of image data, can complete real-time photogrammetry, has low cost and is easy to operate.

本发明设计的一种数码相机影像数据在线采集传输系统包括采集影像数据的数码相机,数码相机配有可插拔的CF存储卡,另配有连接器,处理控制模块、传输模块、时钟模块和电源模块。A digital camera image data online collection and transmission system designed by the present invention includes a digital camera for collecting image data, the digital camera is equipped with a pluggable CF memory card, and a connector, a processing control module, a transmission module, a clock module and power module.

连接器一端为插头,其与数码相机的CF存储卡外形相同,其上有与该CF存储卡的卡槽接口相配合的管脚,各管脚经导线连接另一端的与处理控制模块的I/O接口相配合的输入/输出接口。数码相机的CF存储卡取下,连接器的插头插在数码相机的CF存储卡的卡槽内。One end of the connector is a plug, which has the same shape as the CF memory card of a digital camera, and has pins that match the card slot interface of the CF memory card on it, and each pin is connected to the I of the processing control module at the other end through a wire. /O interface to match the input/output interface. Remove the CF memory card of the digital camera, and insert the plug of the connector into the card slot of the CF memory card of the digital camera.

所述处理控制模块包括FPGA芯片和与之连接的DDR芯片,所述FPGA芯片为可编程门阵列芯片,所述DDR芯片为双倍速率同步动态随机存储器芯片;连接器的输入/输出接口与FPGA芯片的I/O接口连接,FPGA芯片还配有可编程输出接口。FPGA芯片的各管脚通过连接器分别与数码相机CF存储卡的卡槽的对应的控制信号类卡槽接口、状态信号类卡槽接口、地址信号类卡槽接口、数据总线类卡槽接口、卡检测类卡槽接口、电压检测类卡槽接口连接,FPGA芯片接收数码相机内部的相机中心处理器的检测信号,并给相机中心处理器正确的反馈信号,使相机中心处理器完成例行初始化检测、并进入正常摄影或录相的采集影像数据过程,FPGA芯片读取数码相机采集的影像数据,送入DDR芯片缓存。Described processing control module comprises FPGA chip and the DDR chip that is connected with it, and described FPGA chip is a programmable gate array chip, and described DDR chip is double rate synchronous dynamic random access memory chip; The input/output interface of connector and FPGA The I/O interface of the chip is connected, and the FPGA chip is also equipped with a programmable output interface. The pins of the FPGA chip are respectively connected to the corresponding control signal type card slot interface, status signal type card slot interface, address signal type card slot interface, data bus type card slot interface, The card detection type card slot interface and the voltage detection type card slot interface are connected, and the FPGA chip receives the detection signal of the camera central processor inside the digital camera, and gives the correct feedback signal to the camera central processor, so that the camera central processor completes the routine initialization Detect and enter the process of collecting image data for normal photography or video recording. The FPGA chip reads the image data collected by the digital camera and sends it to the DDR chip cache.

所述DDR芯片是存储量等于或大于2G bits的DDR2芯片。The DDR chip is a DDR2 chip with a storage capacity equal to or greater than 2G bits.

所述传输模块为USB3.0芯片,配有可编程输入接口,与FPGA芯片连接;所述传输模块另配有USB3.0接口,与计算机连接。The transmission module is a USB3.0 chip, equipped with a programmable input interface, and connected with the FPGA chip; the transmission module is also equipped with a USB3.0 interface, connected with the computer.

所述时钟模块与处理控制模块、传输模块连接,提供时钟信号。The clock module is connected with the processing control module and the transmission module to provide a clock signal.

所述电源模块连接直流电源,给处理控制模块和传输模块提供电源电压。The power supply module is connected to a DC power supply to provide power supply voltage to the processing control module and the transmission module.

本发明设计的一种数码相机影像数据在线采集传输系统的运行方法包括以下步骤:The operating method of a digital camera image data online acquisition and transmission system designed by the present invention comprises the following steps:

Ⅰ、系统初始化Ⅰ. System initialization

本系统的电源模块接通外接直流电源,给处理控制模块和传输模块提供电源电压;处理控制模块的FPGA芯片完成初始化准备开始工作;同时与传输模块连接的计算机也接通电源,准备接收数据。The power supply module of the system is connected to an external DC power supply to provide power supply voltage to the processing control module and the transmission module; the FPGA chip of the processing control module is initialized and ready to start working; at the same time, the computer connected to the transmission module is also powered on and ready to receive data.

数码相机开机,相机中心处理器开始例行初始化检测,向数码相机存储卡卡槽接口发送初始化检测信号,确定数码相机存储卡是否正确插入卡槽,FPGA芯片接收相机中心处理器的检测信号,并给相机中心处理器正确的反馈信号,数码相机接收存储卡已正确插入的反馈信号完成初始化,数码相机屏幕显示进入准备摄影或录相状态;When the digital camera is turned on, the camera central processor starts a routine initialization detection, and sends an initialization detection signal to the digital camera memory card slot interface to determine whether the digital camera memory card is correctly inserted into the card slot, and the FPGA chip receives the detection signal from the camera central processor, and Give the correct feedback signal to the central processor of the camera, the digital camera receives the feedback signal that the memory card has been inserted correctly and completes the initialization, and the screen of the digital camera enters the state of preparing for photography or video recording;

Ⅱ、影像数据的采集Ⅱ. Image data collection

使用者用数码相机进行摄影或录相,即采集影像数据;The user takes pictures or videos with a digital camera, that is, collects image data;

相机中心处理器向数码相机存储卡卡槽接口发送采集的影像数据,经其存储卡卡槽和连接器进入FPGA芯片,FPGA芯片读取数码相机采集的影像数据,送入DDR芯片缓存。The camera central processor sends the collected image data to the memory card slot interface of the digital camera, and enters the FPGA chip through its memory card slot and connector, and the FPGA chip reads the image data collected by the digital camera and sends them into the DDR chip cache.

Ⅲ、影像数据传输Ⅲ. Image data transmission

当数码相机完成一张照片的拍摄或完成一段录相的摄取,FPGA芯片自动将缓存于DDR芯片的影像数据通过FPGA芯片的可编程输出接口送入传输模块的可编程输入接口,并令传输模块的USB3.0芯片将影像数据通过USB3.0接口传送给计算机。相机中心处理器发送检测信号到存储卡卡槽,检测影像数据存储是否完成,FPGA芯片在完成影像数据传输后,向相机中心处理器反馈影像数据存储完成信号,相机中心处理器检测存储完成的反馈信号正确,准备下一次的影像数据采集,数码相机屏幕显示进入准备摄影或录相状态;本系统完成一次影像数据的在线采集;若需要继续采集影像数据,返回步骤Ⅱ;若采集影像数据工作结束,则关闭数码相机,并断开电源模块与外接直流电源。When the digital camera finishes shooting a photo or captures a video, the FPGA chip automatically sends the image data buffered in the DDR chip to the programmable input interface of the transmission module through the programmable output interface of the FPGA chip, and the transmission module The USB3.0 chip transmits the image data to the computer through the USB3.0 interface. The camera central processor sends a detection signal to the memory card slot to detect whether the image data storage is completed. After the FPGA chip completes the image data transmission, it feeds back the image data storage completion signal to the camera central processor, and the camera central processor detects the feedback of the storage completion. The signal is correct, ready for the next image data collection, and the screen of the digital camera shows that it is in the state of preparing for photography or video recording; the system completes an online collection of image data; if you need to continue to collect image data, return to step Ⅱ; if the work of collecting image data is over , turn off the digital camera, and disconnect the power module and the external DC power supply.

与现有技术相比,本发明一种数码相机影像数据在线采集传输系统及运行方法的优点为:1、数码相机采集的影像数据可以在线传送到计算机,计算机可实时处理影像数据,及时得到监测图像的量测结果,有效地满足机器视觉、工业生产自动化、遥感、测绘等众多行业以及民政、军事部门实时摄影测量的需求;2、结构简单,各种可插拔存储卡的普通CCD或CMOS数码相机结构无需改动,配装FPAG、DDR等现有的芯片、元件即可组装本发明系统,实现实时摄影测量,成本大大低于现有的专业量测数码相机;3、操作简单方便,与一般数码相机的拍照录相操作相同,系统自动完成影像数据向计算机的传输;4、影像数据传输准确可靠,影像数据采集传输速度达15MB/S,一幅500K照片的采集传输时间仅为1/30秒,满足实时摄影测量的要求。Compared with the prior art, the advantages of the online acquisition and transmission system and operation method of digital camera image data of the present invention are: 1. The image data collected by the digital camera can be transmitted to the computer online, and the computer can process the image data in real time and be monitored in time The image measurement results can effectively meet the needs of many industries such as machine vision, industrial production automation, remote sensing, surveying and mapping, as well as civil affairs and military departments for real-time photogrammetry; 2. Simple structure, ordinary CCD or CMOS with various pluggable memory cards The structure of the digital camera does not need to be changed, and the system of the present invention can be assembled by assembling existing chips and components such as FPAG and DDR to realize real-time photogrammetry, and the cost is much lower than that of the existing professional measurement digital camera; 3. The operation is simple and convenient. The operation of photographing and video recording of general digital cameras is the same, and the system automatically completes the transmission of image data to the computer; 4. The image data transmission is accurate and reliable, the image data acquisition and transmission speed reaches 15MB/S, and the acquisition and transmission time of a 500K photo is only 1/ 30 seconds, meeting the requirements of real-time photogrammetry.

附图说明Description of drawings

图1为本数码相机影像数据在线采集传输系统实施例整体结构示意图;1 is a schematic diagram of the overall structure of an embodiment of the digital camera image data online acquisition and transmission system;

图2为图1中处理控制模块结构与传输模块结构框图;Fig. 2 is a block diagram of the structure of the processing control module and the structure of the transmission module in Fig. 1;

图3为本数码相机影像数据在线采集传输系统的运行方法实施例流程图。FIG. 3 is a flow chart of an embodiment of the operation method of the digital camera image data online acquisition and transmission system.

具体实施方式Detailed ways

以下结合实施例和附图对本发明内容作进一步描述,但不是对本发明的限定。The content of the present invention will be further described below in conjunction with the embodiments and drawings, but it is not intended to limit the present invention.

数码相机影像数据在线采集传输系统实施例Embodiment of Online Acquisition and Transmission System of Digital Camera Image Data

本数码相机影像数据在线采集传输系统实施例如图1所示,采集影像数据的数码相机与连接器,处理控制模块、传输模块依次连接,传输模块连接上位的计算机。另配有时钟模块和电源模块接入处理控制模块。An embodiment of the digital camera image data online acquisition and transmission system is shown in Figure 1. The digital camera for image data acquisition is connected to a connector, a processing control module, and a transmission module in sequence, and the transmission module is connected to a host computer. It is also equipped with a clock module and a power module to access the processing control module.

本例的数码相机配有可插拔的CF存储卡。The digital camera in this example is equipped with a pluggable CF memory card.

本例连接器一端为插头,其与数码相机的CF存储卡外形相同,其上有与该CF存储卡的卡槽接口相配合的管脚,各管脚经导线连接另一端的与处理控制模块的I/O接口相配合的输入/输出接口。数码相机的CF存储卡取下,连接器的插头插在数码相机的CF存储卡的卡槽内。In this example, one end of the connector is a plug, which has the same shape as the CF memory card of a digital camera, and there are pins on it that match the card slot interface of the CF memory card, and each pin is connected to the processing control module at the other end through wires The I/O interface matches the input/output interface. Remove the CF memory card of the digital camera, and insert the plug of the connector into the card slot of the CF memory card of the digital camera.

本例处理控制模块和传输模块的结构如图2所示。The structure of the processing control module and transmission module in this example is shown in Figure 2.

所述处理控制模块包括FPGA芯片和与之连接的DDR芯片,本例FPGA芯片型号为EP3C40F484,本例DDR芯片为2片型号为MT47H64M16HR的1Gbits 16的DDR2芯片并联;连接器的输入/输出接口与FPGA芯片的I/O接口连接,FPGA芯片还配有可编程输出接口。FPGA芯片的各管脚通过连接器分别与数码相机CF存储卡的卡槽的对应的控制信号类卡槽接口、状态信号类卡槽接口、地址信号类卡槽接口、数据总线类卡槽接口、卡检测类卡槽接口、电压检测类卡槽接口连接,FPGA芯片接收数码相机内部的相机中心处理器的检测信号,并给相机中心处理器正确的反馈信号,使相机中心处理器完成例行初始化检测、并进入正常摄影或录相的采集影像数据过程,FPGA芯片读取相机采集的影像数据,送入DDR芯片缓存;Described processing control module comprises FPGA chip and the DDR chip that is connected with it, and this example FPGA chip model is EP3C40F484, and this example DDR chip is the DDR2 chip parallel connection of 1Gbits 16 that 2 models are MT47H64M16HR; The input/output interface of connector and The I/O interface of the FPGA chip is connected, and the FPGA chip is also equipped with a programmable output interface. The pins of the FPGA chip are respectively connected to the corresponding control signal type card slot interface, status signal type card slot interface, address signal type card slot interface, data bus type card slot interface, The card detection type card slot interface and the voltage detection type card slot interface are connected, and the FPGA chip receives the detection signal of the camera central processor inside the digital camera, and gives the correct feedback signal to the camera central processor, so that the camera central processor completes the routine initialization Detect and enter the process of collecting image data for normal photography or video recording, the FPGA chip reads the image data collected by the camera, and sends it to the DDR chip cache;

本例传输模块为USB3.0芯片,配有可编程输入接口,与FPGA芯片连接;本例传输模块另配有USB3.0接口,与计算机连接;The transmission module in this example is a USB3.0 chip, equipped with a programmable input interface, connected to the FPGA chip; the transmission module in this example is also equipped with a USB3.0 interface, connected to the computer;

本例时钟模块与处理控制模块、传输模块连接,提供时钟信号;In this example, the clock module is connected with the processing control module and the transmission module to provide clock signals;

本例电源模块连接直流电源,给处理控制模块和传输模块提供电源电压。In this example, the power supply module is connected to a DC power supply to provide power supply voltage to the processing control module and the transmission module.

数码相机影像数据在线采集传输系统的运行方法实施例Embodiment of the operation method of the online acquisition and transmission system of digital camera image data

本数码相机影像数据在线采集传输系统的运行方法实施例采用上述数码相机影像数据在线采集传输系统实施例,其流程图如图3所示,包括以下步骤:The embodiment of the operation method of the online acquisition and transmission system of digital camera image data adopts the above-mentioned embodiment of the online acquisition and transmission system of digital camera image data, and its flow chart is shown in Figure 3, including the following steps:

Ⅰ、系统初始化Ⅰ. System initialization

本系统的电源模块接通外接直流电源,给处理控制模块和传输模块提供电源电压;处理控制模块的FPGA芯片完成初始化准备开始工作;同时与传输模块连接的计算机也接通电源,准备接收数据。The power supply module of the system is connected to an external DC power supply to provide power supply voltage to the processing control module and the transmission module; the FPGA chip of the processing control module is initialized and ready to start working; at the same time, the computer connected to the transmission module is also powered on and ready to receive data.

数码相机开机,相机中心处理器开始例行初始化检测,向数码相机存储卡卡槽接口发送初始化检测信号,确定数码相机存储卡是否正确插入卡槽,FPGA芯片接收相机中心处理器的检测信号,并给相机中心处理器正确的反馈信号,数码相机接收存储卡已正确插入的反馈信号完成初始化,数码相机屏幕显示进入准备摄影或录相状态;When the digital camera is turned on, the camera central processor starts a routine initialization detection, and sends an initialization detection signal to the digital camera memory card slot interface to determine whether the digital camera memory card is correctly inserted into the card slot, and the FPGA chip receives the detection signal from the camera central processor, and Give the correct feedback signal to the central processor of the camera, the digital camera receives the feedback signal that the memory card has been inserted correctly and completes the initialization, and the screen of the digital camera enters the state of preparing for photography or video recording;

Ⅱ、影像数据的采集Ⅱ. Image data collection

使用者用数码相机进行摄影或录相,即采集影像数据;The user takes pictures or videos with a digital camera, that is, collects image data;

相机中心处理器向数码相机存储卡卡槽接口发送采集的影像数据,经其存储卡卡槽和连接器进入FPGA芯片,FPGA芯片读取数码相机采集的影像数据,送入DDR芯片缓存。The camera central processor sends the collected image data to the memory card slot interface of the digital camera, and enters the FPGA chip through its memory card slot and connector, and the FPGA chip reads the image data collected by the digital camera and sends them into the DDR chip cache.

Ⅲ、影像数据传输Ⅲ. Image data transmission

当数码相机完成一张照片的拍摄或完成一段录相的摄取,FPGA芯片自动将缓存于DDR芯片的影像数据通过FPGA芯片的可编程输出接口送入传输模块的可编程输入接口,并令传输模块的USB3.0芯片将影像数据通过USB3.0接口传送给计算机。相机中心处理器发送检测信号到存储卡卡槽,检测影像数据存储是否完成,FPGA芯片在完成影像数据传输后,向相机中心处理器反馈影像数据存储完成信号,相机中心处理器检测反馈的存储完成信号正确,准备下一次的影像数据采集,数码相机屏幕显示进入准备摄影或录相状态;本系统完成一次影像数据的在线采集;若需要继续采集影像数据,返回步骤Ⅱ;若采集影像数据工作结束,则关闭各电源,关闭数码相机,并断开电源模块与外接直流电源。When the digital camera finishes shooting a photo or captures a video, the FPGA chip automatically sends the image data buffered in the DDR chip to the programmable input interface of the transmission module through the programmable output interface of the FPGA chip, and the transmission module The USB3.0 chip transmits the image data to the computer through the USB3.0 interface. The camera central processor sends a detection signal to the memory card slot to detect whether the image data storage is completed. After the FPGA chip completes the image data transmission, it feeds back the image data storage completion signal to the camera central processor, and the camera central processor detects that the storage of the feedback is completed. The signal is correct, ready for the next image data collection, and the screen of the digital camera shows that it is ready for photography or video recording; the system completes an online collection of image data; if you need to continue to collect image data, return to step Ⅱ; if the work of collecting image data is over , turn off each power supply, turn off the digital camera, and disconnect the power supply module and the external DC power supply.

上述实施例,仅为对本发明的目的、技术方案和有益效果进一步详细说明的具体个例,本发明并非限定于此。凡在本发明的公开的范围之内所做的任何修改、等同替换、改进等,均包含在本发明的保护范围之内。The above-mentioned embodiments are only specific examples for further specifying the purpose, technical solutions and beneficial effects of the present invention, and the present invention is not limited thereto. Any modifications, equivalent replacements, improvements, etc. made within the disclosed scope of the present invention are included in the protection scope of the present invention.

Claims (3)

1.一种数码相机影像数据在线采集传输系统,包括采集影像数据的数码相机,数码相机配有可插拔的CF存储卡,其特征在于:1. A digital camera image data online collection and transmission system, comprising a digital camera collecting image data, the digital camera is equipped with a pluggable CF memory card, characterized in that: 另配有连接器、处理控制模块、传输模块、时钟模块和电源模块;连接器一端为插头,其与数码相机的CF存储卡外形相同,其上有与该CF存储卡的卡槽接口相配合的管脚,各管脚经导线连接另一端的与处理控制模块的I/O接口相配合的输入/输出接口;数码相机的CF存储卡取下,连接器的插头插在数码相机的CF存储卡的卡槽内;It is also equipped with a connector, a processing control module, a transmission module, a clock module and a power supply module; one end of the connector is a plug, which is the same shape as the CF memory card of a digital camera, and there is a card slot interface on it to match the CF memory card Each pin is connected to the input/output interface on the other end that matches the I/O interface of the processing control module through wires; the CF memory card of the digital camera is removed, and the plug of the connector is inserted into the CF memory card of the digital camera. in the card slot; 所述处理控制模块包括FPGA芯片和与之连接的DDR芯片,连接器的输入/输出接口与FPGA芯片的I/O接口连接,FPGA芯片还配有可编程输出接口;FPGA芯片的各管脚通过连接器分别与数码相机存储卡的卡槽的对应的控制信号类卡槽接口、状态信号类卡槽接口、地址信号类卡槽接口、数据总线类卡槽接口、卡检测类卡槽接口、电压检测类卡槽接口连接,FPGA芯片接收数码相机内部的相机中心处理器的检测信号,并给相机中心处理器正确的反馈信号,使相机中心处理器完成例行初始化检测、并进入正常摄影或录相的采集影像数据过程,FPGA芯片读取数码相机采集的影像数据,送入DDR芯片缓存;Described processing control module comprises FPGA chip and the DDR chip that is connected with it, and the input/output interface of connector is connected with the I/O interface of FPGA chip, and FPGA chip is also equipped with programmable output interface; Each pin of FPGA chip passes through The connectors are respectively connected with the corresponding control signal card slot interface, status signal card slot interface, address signal card slot interface, data bus card slot interface, card detection card slot interface, voltage The detection card slot interface is connected, and the FPGA chip receives the detection signal of the camera central processor inside the digital camera, and gives the correct feedback signal to the camera central processor, so that the camera central processor completes the routine initialization detection and enters the normal photography or recording mode. In the process of collecting image data, the FPGA chip reads the image data collected by the digital camera and sends it to the DDR chip cache; 所述传输模块为USB3.0芯片,配有可编程输入接口,与FPGA芯片连接;所述传输模块另配有USB3.0接口,与计算机连接;The transmission module is a USB3.0 chip, equipped with a programmable input interface, connected to the FPGA chip; the transmission module is also equipped with a USB3.0 interface, connected to the computer; 所述时钟模块与处理控制模块、传输模块连接,提供时钟信号;The clock module is connected with the processing control module and the transmission module to provide a clock signal; 所述电源模块连接直流电源,给处理控制模块和传输模块提供电源电压。The power supply module is connected to a DC power supply to provide power supply voltage to the processing control module and the transmission module. 2.根据权利要求1所述的数码相机影像数据在线采集传输系统,其特征在于:2. The digital camera image data online acquisition and transmission system according to claim 1, characterized in that: 所述DDR芯片是存储量等于或大于2G bits的DDR2芯片。The DDR chip is a DDR2 chip with a storage capacity equal to or greater than 2G bits. 3.根据权利要求1或2中所述的数码相机影像数据在线采集传输系统的运行方法,其特征在于包括以下步骤:3. According to the operation method of the digital camera image data online collection and transmission system described in claim 1 or 2, it is characterized in that comprising the following steps: Ⅰ、系统初始化Ⅰ. System initialization 本系统的电源模块接通外接直流电源,给处理控制模块和传输模块提供电源电压;处理控制模块的FPGA芯片完成初始化准备开始工作;同时与传输模块连接的计算机也接通电源,准备接收数据;The power supply module of the system is connected to an external DC power supply to provide power supply voltage to the processing control module and the transmission module; the FPGA chip of the processing control module is initialized and ready to start working; at the same time, the computer connected to the transmission module is also powered on and ready to receive data; 数码相机开机,相机中心处理器开始例行初始化检测,向数码相机存储卡卡槽接口发送初始化检测信号,确定数码相机存储卡是否插入卡槽,FPGA芯片接收相机中心处理器的检测信号,并给相机中心处理器正确的反馈信号,数码相机接收其存储卡已正确插入的反馈信号完成初始化,数码相机屏幕显示进入准备摄影或录相状态;When the digital camera is turned on, the camera central processor starts routine initialization detection, and sends an initialization detection signal to the digital camera memory card slot interface to determine whether the digital camera memory card is inserted into the card slot, and the FPGA chip receives the detection signal from the camera central processor, and sends The correct feedback signal from the camera central processor, the digital camera receives the feedback signal that its memory card has been inserted correctly and completes the initialization, and the digital camera screen shows that it is ready for photography or video recording; Ⅱ、影像数据的采集Ⅱ. Image data collection 使用者用数码相机进行摄影或录相,即采集影像数据;The user takes pictures or videos with a digital camera, that is, collects image data; 相机中心处理器向数码相机存储卡卡槽接口发送采集的影像数据,经其存储卡卡槽和连接器进入FPGA芯片,FPGA芯片读取数码相机采集的影像数据,送入DDR芯片缓存;The camera central processor sends the collected image data to the memory card slot interface of the digital camera, and enters the FPGA chip through its memory card slot and connector, and the FPGA chip reads the image data collected by the digital camera and sends them into the DDR chip cache; Ⅲ、影像数据传输Ⅲ. Image data transmission 当数码相机完成一张照片的拍摄或完成一段录相的摄取,FPGA芯片自动将缓存于DDR芯片的影像数据通过FPGA芯片的可编程输出接口送入传输模块的可编程输入接口,并令传输模块的USB3.0芯片将影像数据通过USB3.0接口传送给计算机;相机中心处理器发送检测信号到存储卡卡槽,检测影像数据存储是否完成,FPGA芯片在完成影像数据传输后,向相机中心处理器反馈影像数据存储完成信号,相机中心处理器检测存储完成的反馈信号正确,准备下一次的影像数据采集,数码相机屏幕显示进入准备摄影或录相状态;本系统完成一次影像数据的在线采集;若需要继续采集影像数据,返回步骤Ⅱ;若采集影像数据工作结束,则关闭数码相机,并断开电源模块与外接直流电源。When the digital camera finishes shooting a photo or captures a video, the FPGA chip automatically sends the image data buffered in the DDR chip to the programmable input interface of the transmission module through the programmable output interface of the FPGA chip, and the transmission module The USB3.0 chip transmits the image data to the computer through the USB3.0 interface; the camera central processor sends a detection signal to the memory card slot to detect whether the image data storage is completed, and the FPGA chip processes the image data to the camera center after completing the image data transmission The camera feeds back the image data storage completion signal, the camera central processor detects that the storage completion feedback signal is correct, prepares for the next image data collection, and the digital camera screen displays the state of preparing for photography or video recording; the system completes an online collection of image data; If it is necessary to continue to collect image data, return to step II; if the work of collecting image data is finished, turn off the digital camera, and disconnect the power module and the external DC power supply.
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