hello i have an idea in my mind for my final year project and need some help from you. we are doing a project in the embedded system field. we are doing a flood monitoring system using zigbee.this projects will help reduce the water level in flood prone areas using pumps and the communication between the pumps and the control room will be done using zigbee .so please tell me how to get started
Divide and conquer.
Design hardware that detects flooding.
Implement code that boots processor and prints "hello" to a debug port.
Extend code to support your flooding sensor.
Design hardware that controls a pumb.
Extend code to be able to start and stop the pumps, and also monitors if a pump actually works.
Design hardware that interfaces the zigbee module.
Extend code to support that zigbee. Start by sending simple messages and then extend the code.
Add some hardware and/or other logic for your solution to generate alarms if it thinks something is wrong - flooding sensors not seeming to work, pumps not running when requested to, zigbee communication down, backup power system disconnected or requiring charging or battery replacement, ...
Of course, backup power may be irrelevant since the pumps will probably require huge amounts of power.
thanks for the help can you recommend some books on zigbee
if it is flood monitoring system the main center will be located far from the flood prone areas and zigbee having range of 75m .is there a way to communicate with the far away control room without substantial increase in cost
What have you found so far? How have you decided that Zigbee is appropriate to your task without such materials??
Start at: http://zigbee.org/
"is there a way to communicate with the far away control room without substantial increase in cost"
That's the kind of thing that you'd find as part of your Literature Survey: how have others solved this problem?
You also need to think about it: what kinds of long-distance communication links can you think of...?
The reference to 75 meters for ZigBee and 200 meters for HART was just for comparison between the two. The 75 meters is a reference between two nodes in clear air. As you become more familiar with ZigBee, you will learn of "repeaters" that extend the reporting range far beyond 75 meters.
Time now to hit the ZigBee books. It has been pointed out twice to start at http://www.zigbee.org.
Bradford