Re: [Paparazzi-devel] Successful flights with total energy control loops !

[Tilman Baumann]

On 28/09/12 00:24, Gerard Toonstra wrote:
> If I'm not mistaken, the energy here refers to the total sum of 
> potential energy (altitude) and kinetic energy (velocity).
> Knowing your plane data, you can figure out what a desired energy sum 
> should be in a given context and then figure out what the
> current energy sum is by measuring airspeed and altitude. This allows 
> you to use the throttle to increase or decrease energy.
> The pitch is then a "command" that allows you to exchange kinetic 
> energy for potential energy or vice versa.
>
>
> My intention is to use the EzOSD current sensor. This has a chip 
> underneath the sensor that does all the nasty work for you.
> It measures the voltage and the current,  which is all you need (it 
> does mAh consumed too) and you get that through i2c.
> You then need to configure the capacity of the packs you're flying 
> with in paparazzi.
Do you know which chip that is?

I came across this chip some time ago. Always wanted to give it a shot.
http://www.ti.com/product/ina219

HAL effect based sensor would be much cooler. But I could not quickly 
find a digital version.