Week 1 - Researching on different areas of the Telemetry System to work on
Start of MDP
Separating High-Voltage ground and Low-Voltage ground
We were brief on the ET0923: Multi-Disciplinary Project module regarding its' means of assessments. We are required to log our weekly progress on the project. We have found out some information on the followings:
We found out that we would need an optocoupler (ILD213T 751-1312-1-ND) to isolate the two different circuits we will be using(high voltage & low voltage) to avoid shorting of the circuits and burning the low voltage circuit.
We found out that we would need an optocoupler (ILD213T 751-1312-1-ND) to isolate the two different circuits we will be using(high voltage & low voltage) to avoid shorting of the circuits and burning the low voltage circuit.
Speed Sensing
We have also found out three different possible ways to sense the speed:
Motion Detector (Infrared Sensor) -
It is done by using an infrared sensor to determine the revolution per minute (RPM) of the wheel, then converted to speed through calculations. It is the most accurate method out of the three in finding the speed. However, there is no place to mount the sensor.
Pulses from motor -
The motor controller releases pulse(s) at every interval, and these pulses can be used to calculate the RPM of the wheel and then converted to speed through calculations. However, it will be relatively inaccurate as the pulses will be varied accordingly to the speed, or when the car brakes or speeds up.
GPS Tracking -
The speed can be estimated through calculation of distance difference by using the GPS. However, this requires more programming and also relies heavily on the constant supply of connection. The speed sensing will be stopped whenever the GPS connection is lost, or affected when the Wifi speed is too slow.
Speed Sensing
We have also found out three different possible ways to sense the speed:
Motion Detector (Infrared Sensor) -
It is done by using an infrared sensor to determine the revolution per minute (RPM) of the wheel, then converted to speed through calculations. It is the most accurate method out of the three in finding the speed. However, there is no place to mount the sensor.
Pulses from motor -
The motor controller releases pulse(s) at every interval, and these pulses can be used to calculate the RPM of the wheel and then converted to speed through calculations. However, it will be relatively inaccurate as the pulses will be varied accordingly to the speed, or when the car brakes or speeds up.
GPS Tracking -
The speed can be estimated through calculation of distance difference by using the GPS. However, this requires more programming and also relies heavily on the constant supply of connection. The speed sensing will be stopped whenever the GPS connection is lost, or affected when the Wifi speed is too slow.
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