You are here:Home > Information > Technical Notes

Technical NotesNEWS

Choosing a Industrial Camera For Your Machine Vision System

Publish Time2016-09-29 14:53:56 Page View:

Industrial Cameras, compared with common cameras, has a super advantage in image stability, anti-interference, and data transmission. It’s the key component of Machine Vision System. The performance of industrial camera determines the stability of the machine vision system. Then how to choose the right industrial camera?


First, we need to confirm what kind of industrial cameras that we need. There are few things that we need to make sure:

1. Is there any requirement for color analyze?

2. The maximum size of the component.

3. Minimum detection precision.

4. Camera for static Object or moving object?

5. The distance from Lens to object.


Second, we need to confirm the Hardware type. It means a lot of the performance of camera hardware parameters. So, before we confirmed the hardware type, we need to know these important parameters.


The camera interface:Different camera interfaces have its own advantages and Limitations: Below is a comparison of the most common digital interface technologies in vision technology.


USB2.0

USB3 Vision

FireWire A

FireWire B

GigE Vision

Camera Link

Bandwidth

50 MB/s

400 MB/s

50 MB/s

100 MB/s

125 MB/s

850 MB/s

Cable Length

5 m

8 m

4.5 m

10 m

100 m

10 m

Camera Standard

N/A

USB3 Vision

IIDC(DCAM)

IIDC(DCAM)

GigE Vision

Camera Link

CPU Usage

High

Low

Medium

Medium

Medium

Low

Cost

Low

Low/

Medium

Medium

Medium

Medium

High

Power Over Cable

Yes

Yes

Yes

Yes

Yes

Yes

So you can see that it’s hard to see which type of camera interface can fit all the applications. But considering the current trends of higher resolution and higher speed, the usb2.0 and FireWire are disappearing in vision technology over time. The most popular camera interface should be USB3 Vision and GigE Vision at present.

mars gige industrial camerasmars usb 3.0 camerasmars camera link cameras


Camera Resolution. Generally speaking, there are more imaging processing the host computer need to do for a higher resolution. So we’d better to choose the lowest resolution that could fit our applications. We usually determine the right resolution by this calculation:

Camera resolution(X&Y)=FOV(X&Y)/Minimum detection precision

Many manufacturers can provide a whole series cameras with various resolution. For example, the resolution of our new series-Mars series cameras ranges from VGA to 25 Megapixels resolution.



Camera Software. You can either use a third party machine vision software package for your application, like OpenCV, Matlab, VisionPro, Labview and etc. Or you can use the software development kit (SDK) which will be provided by the industrial camera supplier to develop your own software. But when you choose to use a third party software, please make sure that the camera interface standard supports it. And if you choose to use the SDK to develop your own software, a high performance camera SDK could be very important. A good SDK will help you to save integration time and system cost. Hangzhou ContrasTech’s new developed SDK(icentral) for our Mars Series Camera could be a good chioce.


sdk of icentralFollow GenICam ™ Standard

Optimized Package, Compact Interface, More Simple Development

GigE Vision and USB3 Vision High Performance Drivers

Strong Protocol Layer Plug-in Unit,More Convenient to Extend

iCentral Friendly Setup and Preview Interface



Industrial Cameras have a variety of Categories, so it’s very important to know how to choose the right industrial camera for your vision system. For different machine vision application, there are different industrial cameras. At the same time, we can see industrial cameras in various industrial fields because of its super high performance and advanced technology.



Contact

Hangzhou ContrasTech Co.,Ltd


Add.: No.11, Xiyuan 8th Road West Lake District,

Hangzhou 310030 China

TEL: 86-571-89712238

Fax: 400-8266-163*01460

Web site: www.contrastech.com

E-mail: market@contrastech.com