Flowchart Explanation
1. Method
Finding
It was done after project briefing since
the first week. We had find out multiple choices of method that smart blind
cane use to detect distance and barrier in front. As we can see, there are many type of ultrasonic sensor in the world.
2. Method
Analysis
The method to construct circuit
achieved either from the thesis, journal, magazine, internet and electronics
shop. It is necessary to analysis beforehand to ensure it is really
practically. During analyzing, the types of method have been decided by
comparison and reasonable facts and factors.
3. Calculation
Analysis
Once the method has been decided,
all the required calculation analysis must being done. It is because to find
the actual torque that can be driven with the load. The parameter of the
ultrasonic sensor just measure with calculation the distance.
4. Construct
Circuit
In this part, the circuit involved only
PIC, ping ultrasonic sensor and voice module circuit. In my part, the
controller circuit is designed by the combination of ultrasonic sensor circuit
and voice module circuit on the controller. This is very important circuit to
setup the cut-off the controller of the cane. All the circuit that we design
has its own relay. We put the relay on each circuit it is because easy to us
troubleshot the circuit if the circuit does not function.
5. Circuit
Testing
Was done after us soldering each
circuit and determine circuit functionality. Proceed with the troubleshooting
and reconstruct to recognize the problems.
6. Troubleshooting
This step took the most time in
entire project execution. It may cause to reconstruct disolder and resolder. We
are doing the troubleshooting mostly on sensor circuit and the voice module.
7. Circuit
Installation
Finally, the complete circuit was
installed in the casing. It also required some modification to fit the circuit
and to make sure it is functioning with efficiency.
This is a diagram for this project of Smart Blind Cane.
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