CN204929046U

CN204929046U - Real -time image acquisition system

Info

Publication number: CN204929046U
Application number: CN201520509604.9U
Authority: CN
Inventors: 吴晓华
Original assignee: Shaanxi Sijie Intelligent Technology Co Ltd
Current assignee: Shaanxi Sijie Intelligent Technology Co Ltd
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2015-12-30
Anticipated expiration: 2025-07-14

Abstract

The utility model discloses a real -time image acquisition system, including CMOS sensor, ARM memory, ARM treater, converter and SD card. The utility model discloses real -time image acquisition system uses ARM7 as the LPC2106 of kernel as main control chip, earlier control CMOS sensor OV6620 and carry out image acquisition, then in depositing FIFO memory AL4V8M440 with image data earlier by LPC2106 control, at last with behind the image acquisition result process converter, transmit through multiple communication interface, perhaps draw the image data in this image acquisition system through the SD card, the utility model discloses the image acquisition system has just only realized the functions such as function control, chronogenesis synchronization, data acquisition and processing to OV6620 with a ARM chip, system compact structure, and powerful, it is small, with low costs, low power dissipation, especially adapted using widely.

Description

A kind of Real-time Image Collecting System

Technical field

The utility model relates to a kind of acquisition system, specifically a kind of Real-time Image Collecting System.

Background technology

The technology such as traditional images acquisition system many employings video frequency collection card, there is the shortcomings such as interface is many, complex structure in these technology, causes that system bulk is large, reliability is low, power consumption is high.

Utility model content

The purpose of this utility model is the Real-time Image Collecting System providing a kind of volume little, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of Real-time Image Collecting System, comprise cmos sensor, ARM memory, arm processor, transducer and SD card, it is characterized in that, described arm processor adopts LPC2106, the image using fracture in arm processor to introduce cmos sensor exports vertical synchronizing signal VSYNC, export with interrupt mode synchronous images data, 8 bit parallel data that Y0 ~ Y7 passage of cmos sensor exports first pass through FIFO memory buffer memory, enter arm processor again, arm processor also connects SD card and transducer respectively.

As further program of the utility model: described FIFO memory adopts AL4V8M440.

As further program of the utility model: described cmos sensor adopts OV6620.

As further program of the utility model: described arm processor connects SD card by SPI interface.

As the utility model further scheme: described transducer adopts RS232.

Compared with prior art, the beneficial effects of the utility model are: the utility model Real-time Image Collecting System is that the LPC2106 of kernel is as main control chip with ARM7, first control cmos sensor OV6620 and carry out IMAQ, then controlled first view data to be deposited in FIFO memory AL4V8M440 by LPC2106, finally by image taking results after transducer, transmitted by multiple communication interface, or extract the view data in this image capturing system by SD card, the utility model image capturing system only just achieves with an ARM chip and controls the function of OV6620, timing synchronization, the functions such as data acquisition and procession, system configuration is compact, powerful, volume is little, cost is low, low in energy consumption, be applicable to very much promoting the use of.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of Real-time Image Collecting System;

Fig. 2 is the hardware block diagram of ARM and cmos sensor interface in Real-time Image Collecting System;

Fig. 3 is the hardware block diagram of ARM and SD card in Real-time Image Collecting System.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1 ~ 3, in the utility model embodiment, a kind of Real-time Image Collecting System, comprise cmos sensor, ARM memory, arm processor, transducer and SD card, it is characterized in that, described arm processor adopts LPC2106, the image using fracture in arm processor to introduce cmos sensor exports vertical synchronizing signal VSYNC, export with interrupt mode synchronous images data, 8 bit parallel data that Y0 ~ Y7 passage of cmos sensor exports first pass through FIFO memory buffer memory, enter arm processor again, arm processor also connects SD card and transducer respectively.

FIFO memory adopts AL4V8M440.

Cmos sensor adopts OV6620.

Arm processor connects SD card by SPI interface.

Transducer adopts RS232.

Operation principle of the present utility model is: refer to Fig. 1, when detecting, light can be radiated at subject surface, arm processor controls CMOS camera and gathers image, the view data obtained being sent into cushions in FIFO memory again, then be transferred to other external equipments by transducer, as PC etc., also by SD card interface, image deposited in SD card.

OV6620 is CMOS colour/black and white image transducer, it is supported continuously and interlacing 2 kinds of scan modes, CIF and QCIF two kinds of picture formats, maximum pixel is 352 × 288, and frame rate is 26fps, data format comprises YUV, YCrCb, RGB tri-kinds, the requirement of general pattern acquisition system can be met, OV6620 internal programmable function register be provided with power up mode and SCCB pattern, native system adopts SCCB pattern, continuous sweep, 8 RGB data export.

ARM chip selects the LPC2106 with ARM7TDMI kernel, the function register that SCCB bus protocol arranges OV6620 is simulated by the GPIO of LPC2106, the image using fracture in LPC2106 to introduce OV6620 exports vertical synchronizing signal VSYNC, export with interrupt mode synchronous images data, 8 bit parallel data that Y0 ~ Y7 passage of OV6620 exports first pass through AL4V8M440 buffer memory, enter again in LPC2106, AL4V8M440 is FIFO memory, effect carries out buffer memory to the view data that cmos sensor gathers, regulate arm processor with the difference of speed between cmos sensor, thus collect complete image.

SPI and BUS two kinds of interface modes supported by SD card, native system adopts SPI interface modes, the DAT0 of SD card receives MOSI, CLK (clock line) receives SCK, and CMD (order wire) receives MO2SI, and CS receives P0.14, SD card supports single line and 4 line read/write, the former carries out data serial transmission by DAT0, CS as middle fracture, maximum transmission rate 25Mbps; The latter carries out serial data transmission respectively by DAT0 ~ DAT3, maximum transmission rate 100Mbps, and that native system is selected is the former, can save hardware resource, and it is convenient to realize.

To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.

Claims

1. a Real-time Image Collecting System, comprise cmos sensor, ARM memory, arm processor, transducer and SD card, it is characterized in that, described arm processor adopts LPC2106, the image using fracture in arm processor to introduce cmos sensor exports vertical synchronizing signal VSYNC, export with interrupt mode synchronous images data, 8 bit parallel data that Y0 ~ Y7 passage of cmos sensor exports first pass through FIFO memory buffer memory, enter arm processor again, arm processor also connects SD card and transducer respectively.

2. Real-time Image Collecting System according to claim 1, is characterized in that, described FIFO memory adopts AL4V8M440.

3. Real-time Image Collecting System according to claim 1, is characterized in that, described cmos sensor adopts OV6620.

4. Real-time Image Collecting System according to claim 1, is characterized in that, described arm processor connects SD card by SPI interface.

5. Real-time Image Collecting System according to claim 1, is characterized in that, described transducer adopts RS232.