15-11-2012, 03:50 PM
DIGITAL LOCKING SYSTEM FOR TWO WHEELER
DIGITAL LOCKING SYSTEM FOR TWO WHEELER .DOC (Size: 957 KB / Downloads: 57)
INTRODUCTION
Nowadays Automation occupies various electronic sections by its comfortable nature. This is an era of automation where it is broadly defined as replacement of manual affort by electronic power in all degrees of automation. The operation remains an essential part of the system although with changing demands on physical input as the degree of mechanization is increased.
Degrees of automation are of two types, viz.
• Full automation
• Semi automation
In semi automation a combination of manual effort and electronic power is required whereas in full automation human participation is very negligible.
NEED FOR AUTOMATION
Automation can be achieved through computers, hydraulics, pneumatics, robotics, etc., of these sources; electronics from an attractive medium for low cost automation. The main a4dvantage of all electronics systems are economy and simplicity. Automation plays an important role in mass production.
To achieve quick response
To prevent the accident by alarm indication
To reduce the work load
To reduce the fatigue
To achieve good quality
Less maintenance
PCB DESIGNING
PRINTED CIRCUIT BOARD (PCB)
Nowadays the printed circuit board hereafter mentioned as PCB’s makes the electronic circuit manufacturing as easy one. In olden days vast area was required to implement a small circuit. To connect two leads of the components, separate connectors are needed. But PCB’s connect the two leads by copper coated lines on the PCB board.
PCB’s are available in various types’ namely single sided and double sided boards. In single sided PCB’s the copper layer is one side.
MANUFACTURING
First, the wanted circuit is drawn on a paper and it is modified or designed PCB layout is to be drawn on the plain copper coated board. There boards are available in 2 types.
1. Phenolic
2. Glass epoxy
Most computer PCB’s are glass epoxy. To draw the circuit diagrams we can use the black colour paint. Before that the required size of the plane PCB board is determined from the roughly drawn PCB layout. Using black paint the desired circuit is drawn on the board.