Philips Inca 311 Manuel utilisateur

Industrial Vision Inca 311

Intelligent Camera

- 12NC: 8122 410 5680.0

Hardware

Manual

Philips Applied Technologies

Inca 311 Hardware Manual

Version 1.3

A publication of:

Philips Applied Technologies

Industrial Vision

www.apptech.philips.com/industrialvision

Eindhoven, The Netherlands

All rights are reserved.

Reproduction in whole or in part is prohibited without the written consent of the copyright owner.

The information in this publication is furnished for guidance, and with no guarantee as to its accuracy or

completeness.

Philips Applied Technologies does not assume liability for any consequences to its use;

specifications and availability of goods mentioned in it are subject to change without notice

Printed in the Netherlands, 2005-12-12

8122 410 5688.4

CONTENTS

Inca 311 Hardware Manual...............................................................................................................................2

1INTRODUCTION ........................................................................................................................................2

1.1 ABOUT THIS MANUAL...............................................................................................................2

1.2 SUPPLIED PARTS......................................................................................................................2

1.3 ABOUT THE INSTALLATION .....................................................................................................2

2HARDWARE ..............................................................................................................................................3

2.1 TRIMEDIA PROCESSOR...........................................................................................................3

2.2 CMOS SENSOR .........................................................................................................................4

2.3 CAMERA CONNECTIONS .........................................................................................................4

2.4 POWERING UP ........................................................................................................................11

3SOFTWARE INSTALLATION..................................................................................................................12

4MECHANICAL INTERFACE....................................................................................................................13

5TROUBLE SHOOTING............................................................................................................................14

5.1 KNOWN PROBLEMS USING THE INCA..................................................................................14

5.2 SERVICE AND SUPPORT........................................................................................................15

6TECHNICAL SPECIFICATION................................................................................................................16

Page 2 2005-12-12

1 INTRODUCTION

Congratulations on buying the Inca vision system!

An Inca is a high quality intelligent camera for image

acquisition and processing. Inca offers a complete vision

system that is ACCURATE, FAST, COMPACT and COST-

EFFECTIVE. The high-resolution, high dynamic range

sensor provides the best basis for the development of a

very accurate vision system. Having all the processing

power close to the sensor and the capability of region of

interest processing reduces processing time and thus

faster systems can be realised. Because of this integrated

processor, display capabilities and industrial I/O, the Inca

offers a very compact total vision solution, without any

need for additional hardware like e.g. a PC. This makes an

Inca solution besides very cost-effective also transparent

and easy to work with. Finally the industrial housing

provides optimal possibilities for incorporating the Inca in

almost every (industrial) environment.

1.1 ABOUT THIS MANUAL

This manual explains how to install your Inca camera and

how to check that it is working correctly.

1.2 SUPPLIED PARTS

The supplied equipment comprises the following:

• One Inca 311 camera.

• One hardware manual (this document).

If any of these items is not included notify your supplier

immediately.

1.3 ABOUT THE INSTALLATION

The installation consists only of making the right

connections to the Inca. Start-up and running an

application is completely done under software control.

Software is not provided with the Inca, but is a separate

product that can be purchased from Industrial Vision. Refer

to chapter 3 for available software.

2 HARDWARE

The Inca hardware consists of the following modules:

• TriMedia processor

• CMOS sensor

• IEEE 1394 (FireWire™) interface

• RS232 serial interface

• Video outputs VGA and CVBS

• Digital inputs and outputs

• Trigger input and flashlight output

• Reset input and watchdog output

• Four general purpose LED’s

• One system LED

• 8 MByte on-board flash memory

• 32 MByte SDRAM

2.1 TRIMEDIA PROCESSOR

The core of the Inca is the TriMedia 1300 processor. This

Very Long Instruction Word CPU (max. 5 parallel

instructions) with image co-processor runs on 143 MHz or

even 180 MHz. Among others, this processor handles:

Image and control data flows

Storage of acquired images. The images are stored in the

32 MByte on-board SDRAM.

Processing of the image stored in on-board SDRAM

Interaction with its environment for product information and

measurement results

Programming this TriMedia processor can be done using

the Rhapsody C/C++ software package or a graphical

development environment called Clicks. The TriMedia part

of this software is based on the real time operating system

pSos™. Especially for high-end vision applications this is

very important, because in this way the timing of the

application is deterministic, this in contrast to programs

running in Windows™.

Clicks allow application engineers to graphically compose

the tasks to perform. Without the need of programming

expertise this tool is easily accessible for most engineers

and offers a very natural and interactive way to realize your

application.

2005-12-12 Page 3

2.2 CMOS SENSOR

2.2.1 Inca 311

In the Inca 311 a monochrome sensor PCS2112-LM from

Zoran is implemented. This high performance CMOS

imaging sensor has an extreme ‘uniform pixel array’ and

an extremely low ‘fixed-pattern noise’ because of its

‘Distributed Pixel Amplifier’ architecture. The following

main features, supported by the Inca 311, are available:

• 1280 x 1024 Pixels

• 10 bit ADC resolution

• 2/3” sensor housing

• One region of interest

• Programmable exposure time

• Mirror and flipped scan modes

• 16 MHz or 24 MHz pixelclock

• Full frame rate 9.3 or 14 frames per second

• Programmable gain 0..14 dB

• Dynamic range 66dB

• Synthetic test image

• Decimation factor 2 and 4 for higher frame rates of

sub- sampled images

2.3 CAMERA CONNECTIONS

The rear side of the camera gives the user a great number

of possibilities for interfacing the camera.

• IEEE 1394 (also known as Firewire™)

• One trigger input and one output for flash control

• Digital input 6 bits optically isolated

• Digital output 6 bits optically isolated

• RS232

• Camera reset

• Watchdog

• VGA and CVBS for display purposes

Figure 2-1 Inca 311 back side connectors

Page 4 2005-12-12

2.3.1 IEEE 1394 (FireWire™)

For the interconnection of the Inca camera to the host PC

a so-called IEEE 1394 interface, also known as

FireWire™, is used. For this link the PC must be equipped

with an IEEE 1394 interface. This IEEE 1394 can be an

onboard OHCI version, a PCILynx- or OHCI- IEEE 1394

PCI expansion board in case of a desktop PC or a

PCMCIA expansion card in case of a notebook. The

number of Inca’s that can be connected to a single IEEE

1394 interface depends on the number of ports available

on the interface. The number of ports can be in the range

one to six but is typically three. The integration of the

physically IEEE 1394 interface into your Windows™

operating system is achieved via a so called device driver.

A device driver for the OHCI and the PCILynx version of

the IEEE 1394 interface will be available for;

Windows NT4, Windows 2000 and Windows XP.

2.3.2 Trigger and Flash

The Inca has an optically isolated trigger input and flash

output.

The trigger input enables the feature to prepare the

capture of an image. If programmed so the capture

process will start immediate when the trigger input is

signaled. A rising or a falling edge on the input can indicate

the trigger.

The flash output can control the external flash unit if

required. The active state (high or low) can be

programmed, see the note for side effect.

TRIGGER / FLASH

1234

TRIGGER/FLASH

PIN FUNCTION

Trigger 1(n)

Flash 1(p)

Flash 1(n)

Trigger 1(p)

Figure 2-2 Trigger/Flash connector

Note: The start-up sequence for the Inca has

consequences for the flash output. In case the flash output

is configured as a non-inverting output the output is zero

and stays zero and awaits control by the software.

If the output is configured as an inverting output than

during the start-up sequence the output equals the value of

the power supply. This situation stays that way until the

software has taken over the control. In case a flash unit is

2005-12-12 Page 5

switched to the on position with a positive input, the flash

unit will flash or lit continuously.

2.3.2.1 Using the Trigger Input

The trigger input is optically isolated.

The following diagram shows and example of how to use

the optical Isolated input.

24V

Inca p

2K7

Figure 2-3 Optical isolated trigger input

When the diode is conducting and thus emitting light, the

software will interpret this as a binary ‘1’.

The input is TTL level compatible.

• input current 6.3 mA < Ion < 10 mA

• Pmax 20 mW

2.3.2.2 Using the Flash and Watchdog

Outputs

The flash and watchdog outputs are optically isolated .

The following diagram shows an example of how to use

the optical output.

24V

2K7

Inca p

Figure 2-4: Optical isolated flash and watchdog

outputs

When the flash output is defined as active high and the

software sets the flash as active, then the state of the

output is Ioff, and the transistor will not be conducting.

When the flash output is defined as active low, and the

software sets the flash as active, then the state of the

output is Ion, and the transistor will be conducting.

The watchdog will behave the same as the flash output in

the active high definition.

The inputs and outputs are not protected in any way, so

care must be taken when connecting anything to these

inputs and/or outputs.

All inputs and outputs are TTL level compatible.

• output current 0.9 mA < Ion < 18 mA, Vce max 40 volt

• Pmax 20 mW

Page 6 2005-12-12

2.3.3 Digital I/O

The Digital Input and Output connectors give the user

the possibility to connect and control a number of devices.

For that purpose 6 output and 6 input lines are available.

These output and input lines are optically isolated from the

Inca (see explanation: 2.3.4 How to use the isolated

input/output).

Input 6 differs from the other inputs in a way that it has a

special purpose. Input 6 can be used as an interrupt input

either level or edge sensitive.

All inputs and outputs are TTL level compatible.

• input current 6.3 mA < Ion < 10 mA

• Pmax 20 mW

• output current 0.9 mA < Ion < 18 mA, Vce max 40 volt

2005-12-12 Page 7

Figure 2-3: Digital input and output connections

Table 2-1: LED control by Rhapsody software

LED 1 green or yellow

LED 2 green or yellow

LED 3 green or yellow

LED 4 green (only!)

DIGITAL I/O

PIN INPUT

Input 4(p)

Input 1(p)

Input 2(p)

Input 6(p)

Input 3(p)

Return input 6(n)

Input 5(p)

Return input 1..5(n)

PIN OUTPUT

Output 4(p)

Return output 4..6(n)

Output 6(p)

Output 2(p)

Output 5(p)

Output 1(p)

Return output 1..3(n)

Output 3(p)

(p/n see: 2.3.4 How to use the isolated input/output)

Note: The common grounds of the outputs are clustered in

two groups of three outputs. Five input common grounds

are clustered.

LED 1

LED 2

Out

LED 3

LED 4

2.3.4 How to use the isolated input/output

In this part the user will find how the optical isolation is

implemented in the Inca. Not only the digital input and

output lines are optically isolated but also the flash and

watchdog output and the trigger input.

Page 8 2005-12-12

Figure 2-4: Circuit for optical isolation

The above circuit is the one used in the camera. Hereafter

will be explained how these circuitry can be used by the

user of the Inca.

2.3.4.1 INPUT

As already mentioned in paragraph 2.3.3 Digital I/O the

input current for Ion is between 6.3 mA and 10 mA. Ion is

the current whereby the output transistor is conducting. In

order to prevent the input from left floating, the return (n) is

internally connected with a high impedance to ground. In

order to let the input functioning properly the user must

connect the common ground to the signal ground.

2.3.4.2 OUTPUT

The optically isolated output is only a transistor. As can be

seen in figure: 2-6 the emitter is connected via a 1M

resistor to ground. It prevents the output transistor from left

floating. If the output is conducting the output current Ion

must be in the range 0.9 mA < Ion < 18 mA. The maximum

Vce is 40 volt.

Inverting

output(p)

Input(p) 2.3.4.3 Suggestion for Output and Input :

Return

(

)

24V

Warning: Writing a True or One to the digital output results

in an Ioff (out = high because of pull-up resistor), on the

contrary writing a False or Zero to the Digital output results

in a Ion (out = low because of transistor short circuit).

1M 2K7

2K7 24V input

User side

Out si

nal

User 1M

ure 2-6: O

to-isolated out

ut Fi

ure 2-5: O

to-isolated in

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