euroskills and ewt (electronics workshop team)

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EuroSkills and EWT(Electronics Workshop Team)

Why new trade proposal?

On the basis of the experiences gained through the ModVoc project, we started to develop a new competition trade for the EuroSkills competition making use of the knowledge

gained through the previous competition experiences. The requirements for the implementation of the EuroSkills trades are in spirit of the ModVoc studies in other

respects as well.

How? By means of the project, we have developed trade descriptions for the use of national and

international vocational skills competitions with the aim of modifying the content and form of the tasks of the traditional global WS competition to better meet the skills requirements

of the European industry.

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Type of competition Design, alteration and assembly of an electronic device to be carried out by a team of two

people

Central content of the task The assembly of an individual electronic device equipped with an embedded system or the

alteration of a working device to satisfy the demands of the customer better.

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Technical description headlines:

•Assembly mechanical units and testing basic driving electronics

•Design and Assembly of extended driving electronics and testing main function (unit included an embedded system (AVR microcontroller kit)

•Programming of equipment whit C language

•Final Testing and improving of system performance

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EuroSkills and EWT (electronics workshop team) Examples:In Demo presentation 15-17.3.2007 Rotterdam we use following system

Main mechanics: Assa-Abloy safety box automatic door unit.Driving electronics: Deltabit Gatekeeper access control system based on biometric

fingerprint identification.

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EuroSkills and EWT (electronics workshop team) Examples of devices: Final competition Septemper 2008: Testing and control

systems in electronic industries Nokia

M o v e ab le b e d

R o b o t h an d

C am e r as

R o bo tm o vi ngdi r e c t i o ns

M o bi l e P ho ne

D r i vi nge l e c tr o ni c s

E m be dde d

s ys te m(AVR )

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How we do competition?

Job description: The task will be assigned to the competitors as a work order. The customer

wants the device to perform certain operations or the old device should gain new properties. The job description is based on a written document that will be

supplemented with an oral explanation.

Interaction: The competitors will have 15 to 30 minutes to acquaint themselves with the material, whereupon they gather together for a common meeting where

they have to put questions in English to the person that set the task.

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Accomplishment of the task:

The accomplishment of the task will be divided into modules (phases). After each module the competitors will get feedback on their performance.

One of the modules contains a demonstration, where the competing pair

demonstrates the operation of the device to the jury (and the audience) and explains their solutions in English. There will be a break in the competition

during the account, and the working partners will take turns at performing the demonstration. The other pairs are not allowed to follow the demonstration.

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Evaluation:The evaluation is based on three main areas:

1. Fulfilling the technical specifications given by the customer (performance, functionality)

2. The economical and ecological properties of the solutions

3. The performance of the group during the demonstrations and communicative situations

4. The quality and clarity of the documentation produced by the group

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EuroSkills and EWT(Electronics Workshop Team) Technical facts

1. Step motor CardEurosize card with driving electronics for

both step motors.X-direction Type M061-LE08, 24 V

unipolar, needs bridge driver 3,8 A

Y-direction Type Sonceboz 6550-23-2-3R018, 24 V, unipolar, needs bridge driver

2. Opto-coupler card with 5V regulatorsthe card is needed mainly for sensor

signals and regulatorsIn mechanical part there are 4 pcs

optical and 3 pcs inductive sensor plus 10 reed relies.

3. Pneumatic valve driving card8 pcs solenoid valves (24 V /100 mA)

4. Embedded system cardAVR -card

M o v e ab le b e d

R o b o t h an d

C am e r as

R o bo tm o vi ngdi r e c t i o ns

M o bi l e P ho ne

D r i vi nge l e c tr o ni c s

E m be dde d

s ys te m(AVR )

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Competition phase A.

Assembling and commissioning of an electromechanical deviceThe task includes mechanical assembling, wiring and mounting of ready-made electronic

cards. Finally the basic functions of the equipment will be tested

In phase A competitor teams will assembly ready made cards 1-3 and test the basic functions of electrical and mechanical parts.

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Competition phase B

Design and building of extended electronicsThe task involves completing of a given circuit diagram with a missing part of design. This

design can be done with the help of a simulation program. After that the competitor will have to make the layout of a circuit board on the basis of the given circuit diagram using a CAD program. The picture of this layout will be printed on paper for evaluation, and the design will be transformed into a Gerber file for the circuit board milling machine. The

circuit board itself will be made by the circuit board milling machine. After the milling the circuit card will be assembled and tested.

Competitor teams have e.g. to add some sensors and driving electronics to the basic unit. They have to do small scale electronic design and printed board design for the new part of electronics. When the card is ready it will be assembled and the function of the whole new

system has to be tested.

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Competition phase C

Programming of extended electronicsThe extended electronics will be controlled with embedded system. The task is to design a C language control program that makes the electromechanical equipment to function according

to given specifications under the control of connection electronics.

The task can be done so that the teams can start with a ready made basic program which needs to be altered with some new functions.

The teams have do programming of the mechanical unit e.g. with following functionsrobohand needs to be moved to vertical and horizontal directionsrobohand has to push mobile phone buttons and do some works:

- moving the phone to on/off positions - making of text messages (sms) and sending them to mobile phone numbers or to the TFT-

screens which are seen by public.

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Competition phase D

Final testing and adjustmentThe whole system will be put to use and tested. The final adjustment will define additional

requirements for the performance that will call for slight changes both in structure and performance.

The teams have to improve system performance and also do presentation about teams work.

euroskills and ewt (electronics workshop team)

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