Solved

# what is scaled data?

Posted on 2012-09-13
680 Views
In a typical datalink, scaled data(temperatures, pressure, and speeds) is exchanged.  Please give some examples of scaled data.

Thank you!
0
Question by:naseeam

LVL 26

Expert Comment

try this link for some insight into scaling data
http://www.vias.org/tmdatanaleng/cc_scaling.html
0

Author Comment

Raw data is received on a typical data link.  What are some examples of scaling raw data to get 1.5A or 4.4V.
0

LVL 26

Accepted Solution

Digital data is in digital form.
So everything (temperature, pressure, speed) are digital numbers.

You have to know the scaling or conversion factor for each one.
They will all be different.

Temperature be a 12-bit binary number:  0 to 4095
The scaling could be 0 bits = 0 deg C   4095 bits = 100 deg C.

Speed could be another 12-bit binary number:  0 to 4095
The scaling could be 0 bits = 0 ft/s  or 0 mph.  4095 bits = some max value.

Sometimes the scaling has to accommodate positive and negative values,
so that 0 bits is not 0 units.
0

LVL 26

Expert Comment

One common scaling:

If voltage is a 10-bit binary number:  0 to 1023  corresponding to 0 to 10.23 V

Then 4.40 volts would be 440 bits ==> 01 1011 1000 ==>  256+128+32+16+8
0

## Featured Post

### Suggested Solutions

My 2003 Land Rover discovery 2 key for code for car alarm 7 56
Linear algebra 3 45
What is a Pedal Motor? 2 30
Math Question 1 35
This tutorial is posted by Aaron Wojnowski, administrator at SDKExpert.net.  To view more iPhone tutorials, visit www.sdkexpert.net. This is a very simple tutorial on finding the user's current location easily. In this tutorial, you will learn ho…
Have you ever thought of installing a power system that generates solar electricity to power your house? Some may say yes, while others may tell me no. But have you noticed that people around you are now considering installing such systems in their …
The goal of this video is to provide viewers with basic examples to understand how to use strings and some functions related to them in the C programming language.
The goal of this video is to provide viewers with basic examples to understand how to create, access, and change arrays in the C programming language.