viernes, 18 de noviembre de 2016

SISTEMAS OPERATIVOS

Actividad de SISTEMAS OPERATIVOS

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miércoles, 26 de octubre de 2016

Get down to business....


These days we began to build the structure that will support our bridge, as designed and established measures.
On a wooden base 16 mm particle board we got a rectangular frame 40 cm, and is bolted to the base.
The upper cross frame has joined the side pillars by an assembly with two small spikes.To reinforce this union they have been glued.

The Drawbridge board, will join the support frame by two small wooden hinge screws threadably.
At the other end it will be supported on a platform supported by four pillars fixed.

These pillars along with a triangulated lattice of "beams" that unites, will give strength to the fixed structure.

Wooden sticks forming the triangular lattice of the fixed platform are attached with glue and thermal fuse attached to the pillars of the platform by small holes, which has been a major challenge.

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miércoles, 12 de octubre de 2016

ACTIVIDAD ÉTICA Y ESTÉTICA EN LA RED

Se trata de hacer una presentación utilizando powtoon

sábado, 8 de octubre de 2016

We started our bridge ......


Regarding the European K219 Project "International knowledge fair. Sharing good teaching practices" and in which is immersed the Department. Of Technology, have begun the activity for 4º ESO in subject of TECHNOLOGY ROBOTICS, with the construction of the model a bridge, later to automate it using a  Arduino controller board.
The activity has aroused great interest among students, because for most of them are new content and motivates them quite a project to unify electronics and computer control.

The Arduino controller board in your version UNO will be responsible for managing the operation of the bridge and through the software to implement will give the required functionality have been made three groups, and in principle all build the bridge under the same guidelines As programming or automation of the bridge, the general conditions will be common, although students may establish different situations proposals to be solved with the procedures regarding software they deem appropriate. The model is made of wood, although other materials may be used.

The first thing we decided are the dimensions of the bridge and the structural elements that will. The bridge will be bascule, and save a distance of 40 cm. The board will have a width of 15 cm and the frame that holds it will rise 40 cm, the board being to a height of 14 cm above the ground, in one end have a fixed part supported by a triangular structure, and a barrier to control the passage of vehicles. For lifting the bridge will use a small d.c. motor voltage and continuous movement and a broadcast transmission system using pulleys or gears, which collect climbing rope dash barrier to access to the bridge, we will use a servomotor.
Having established the dimensions and the lift system we proceeded to enumerate the various signals and encode process will need to control the bridge. Although everything is subject to possible modification signals basically they depend on the functionality of the bridge. For raising and lowering the bridge computer use two keys to be read from the serial monitor Arduino, and for changing rotation of the motor (up-down), use L239D integrated circuit.
We will have two limit switches to detect the end position of the bridge deck. The system will have a radar, using a suitable ultrasonic sensor for Arduino that signal the position of ships. The access barrier using the servo will be automatic. The system is completed by a number of LED signs that inform every moment of the state of the bridge.

sábado, 2 de enero de 2016

FUNCIONAMIENTO MOTOR CORRIENTE CONTINUA

PRINCIPIO DE FUNCIONAMIENTO DEL MOTOR DE CORRIENTE DIRECTA 

 El principio de funcionamiento de los motores eléctricos de corriente directa o continua se basa en la repulsión que ejercen los polos magnéticos de un imán permanente cuando, de acuerdo con la Ley de Lorentz, interactúan con los polos magnéticos de un electroimán que se encuentra montado en un eje. Este electroimán se denomina “rotor” y su eje le permite girar libremente entre los polos magnéticos norte y sur del imán permanente situado dentro de la carcasa o cuerpo del motor.
Cuando la corriente eléctrica circula por la bobina de este electroimán giratorio, el campo electromagnético que se genera interactúa con el campo magnético del imán permanente. Si los polos del imán permanente y del electroimán giratorio coinciden, se produce un rechazo y un torque magnético o par de fuerza que provoca que el rotor rompa la inercia y comience a girar sobre su eje en el mismo sentido de las manecillas del reloj en unos casos, o en sentido contrario, de acuerdo con la forma que se encuentre conectada al circuito la pila o la batería.

martes, 6 de octubre de 2015

LINEA DE TIEMPO:HISTORIA DE INTERNET CON TIMELINE JS

Creada por JOSE VICENTE VARGAS MESTANZA  1º BACH. CIENCIAS Y TECNOLOGÍA