CN205883399U - Industry smart camera based on DSP - Google Patents

Abstract

The utility model provides an industry smart camera based on DSP, including image acquisition unit, image processing unit and transmission unit. The image acquisition unit includes CMOS image sensor, optical system and lighting device, image processing unit adopts the DSP chip to realize, CMOS image sensor's output is connected to its input for image signal to the input carries out image processing, image processing unit's output is connected to the input of transmission unit, and the output of transmission unit is through netting very much interface or the long -range host computer of IO interface connection with the giga. The utility model discloses industry smart camera adopts DSP chip scheme, and the advantage of full play DSP's operational speed can realize multiclass image processing application functions. The ripe machine vision algorithm of the inside solidification of camera, intelligent degree is high, need not user's programming. On the integrated level of camera is high, little, the easy installation of whole size puts line and various equipment into production, can satisfy multiple machine vision's application demand.

Description

A kind of industrial intelligent camera based on DSP

Technical field

This utility model belongs to embedded machine vision field, relates more specifically to a kind of employing DSP (at digital signal Reason) chip as primary processor, cmos image sensor as the industrial intelligent camera of sensitive chip.

Background technology

Exemplary machine vision system is the most all to use visual system based on PC, generally comprises CCD or CMOS phase Machine, camera lens, image pick-up card, image processing software bag and for the general purpose computer of image procossing or industrial computer, wherein, image Acquisition function completed by CCD/CMOS camera and image pick-up card.The process of image is then propping up at image acquisition/process card Hold down, completed in PC by processing software.The Vision Builder for Automated Inspection bulky dimensions of Based PC platform, structure are complicated, its application The construction cycle of system is long, relatively costly, and the appearance of novel intelligent industrial camera, to the machine vision of traditional Based PC Solution proposes challenge.

Utility model content

The purpose of this utility model provides a kind of CMOS industrial intelligent camera product based on DSP, gives full play to dsp chip Characteristic, it is achieved from figure collection, then to image procossing, finally arrive all processes that image transmits with data, it is curable specially Image processing algorithm, it is achieved intelligentized industrial camera product.The over all Integration degree of smart camera is high, and size is little, special It is applicable to the demand of present automatic industrial industry.

This utility model the technical scheme is that for realizing above-mentioned technical purpose

A kind of industrial intelligent camera based on DSP, including image acquisition units, graphics processing unit and transmission unit；

Described image acquisition units includes cmos image sensor, optical system and illuminator；Wherein, illuminator For providing photoenvironment, optical system is for sensing objective Scenery Imaging being shot at image sensor plane, cmos image The outfan of device connects the input of graphics processing unit, passes for image light signals is converted into discernible charge signal Give graphics processing unit；

Graphics processing unit uses dsp chip to realize, and its input connects the outfan of cmos image sensor, for right The picture signal of input carries out image procossing；

The input of transmission unit connects the outfan of graphics processing unit, and the outfan of transmission unit is by with gigabit too Network interface or I/O interface connect long-range host computer.

Further, described graphics processing unit includes that memory module, described memory module include again non-volatile memories Submodule and volatile storage submodule, described non-volatile memories submodule use NAND Flash or EEPROM, described easily The property lost sub module stored uses DDR2 or DDR3.

Compared with prior art, following aspect that what this utility model was more excellent have the technical effect that:

1, using dsp chip is main control module, and the functional interface such as its internal VPIF, EMAC is highly convenient for cmos sensor Connection and data network transmission, compare the scheme of FPGA, both avoided complex interface self-defined, DSP can be given full play to existing Hardware module advantage.

2, using dsp chip to carry out image procossing, its CCS software platform environment is especially suitable for the exploitation of C, C Plus Plus, right Existing image algorithm is very convenient with transplanting, and its developing instrument provided and assembly are the abundantest simultaneously, the application of its maturation Scheme also provides guarantee for the stability of complete machine and reliability.

3, have employed cmos image sensor, effectively reduce cost and the power consumption of camera, the structure of CMOS+DSP improves The integrated level of camera, the volume and weight making camera is less, be more suitable for the application having particular/special requirement to camera size weight.

Accompanying drawing explanation

Fig. 1 is the structural representation of industrial intelligent camera of the present utility model.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to solve Release this utility model, do not limit this utility model.

Fig. 1 is the structural representation according to industrial intelligent camera of the present utility model, at image acquisition units, image Reason unit and transmission unit.

Image acquisition units includes cmos image sensor, optical system and illuminator.Reasonably parts composition can be helped Auxiliary system obtains the picture of good quality, and illuminator is object view being shot by adjusting the parameters such as illumination spectrum, intensity and angle Thering is provided good photoenvironment, and optical system is collectively constituted by image-forming objective lens and low pass filters, image-forming objective lens can correct Optical aberrations, low pass filters can filter out the HFS in imaging beam, prevents low-frequency disturbance striped, and CMOS passes Sensor part then be responsible for external optical signal is converted to charge signal, be then passed through A D conversion, noise suppressed, Gain tuning etc. The image acquisition control module in DSP main control unit is passed to after series of optimum and process.

Graphics processing unit uses dsp chip to realize, and functionally can include main control module and image processing module.

Main control module includes image acquisition control module, transmission control module, image procossing control module and storage mould Block, wherein image acquisition control module is used for configuring cmos image sensor parameter and image acquisition parameter；Transmission control module For controlling processing result image and the transmission of system control instruction；Image procossing control module is for controlling the figure in program curing As handling process；Memory module view data storage in image processing process, including non-volatile memories and volatibility Storage, non-volatile memories is Flash and EEPROM, and described volatile storage is DDR2 or DDR3.

Image processing module is divided into again image pre-processing module and image advanced processing module, and image pre-processing module is used for View data carries out the operations such as image enhaucament, image filtering, image segmentation, and image, after pretreatment, can be follow-up height Level processing procedure provides a good foundation forms, can filter part irrelevant information so that characteristic information is more easy to extract, this Individual is the premise that identifies at a high speed of smart camera and basis.Image advanced processing module is then the key of our smart camera, By program curing, according to the operating process of default appointment function, the functional requirement specified finally is done step-by-step, these functional packet Include template construct, feature extraction, target recognition, parameter calculating etc..

Transport module includes gigabit Ethernet hop or Digital I/O hop, is long-range host computer or performs system The path that system is connected with smart camera, it passes through image after the process that DSP transmission control module is exported by gigabit ethernet interface Or result passes to long-range host computer or execution system, concrete coffret can carry out selecting and determining according to site environment System.

As it will be easily appreciated by one skilled in the art that and the foregoing is only preferred embodiment of the present utility model, not In order to limit this utility model, all any amendment, equivalents made within spirit of the present utility model and principle and changing Enter, within should be included in protection domain of the present utility model.

Claims (2)

1. an industrial intelligent camera based on DSP, it is characterised in that include image acquisition units, graphics processing unit and biography Defeated unit；

Described image acquisition units includes cmos image sensor, optical system and illuminator；Wherein, illuminator is used for carrying For photoenvironment, optical system for by objective Scenery Imaging being shot in image sensor plane, cmos image sensor defeated Go out end and connect the input of graphics processing unit, send figure to for image light signals is converted into discernible charge signal As processing unit；

Graphics processing unit uses dsp chip to realize, and its input connects the outfan of cmos image sensor, for input Picture signal carry out image procossing；

The input of transmission unit connects the outfan of graphics processing unit, and the outfan of transmission unit is by connecing with gigabit too net Mouth or I/O interface connect long-range host computer.

Industrial intelligent camera based on DSP the most according to claim 1, it is characterised in that described graphics processing unit bag Including memory module, described memory module includes again non-volatile memories submodule and volatile storage submodule, described non-volatile Property sub module stored use NAND Flash or EEPROM, described volatile storage submodule use DDR2 or DDR3.