Re: [simspark-devel] Problem Of Accelerometer

[Xu Y. <xuy...@gm...>]

Hi,

Thanks for your report.
I think it is the problem of the build-in filter without initialization 
value.
I already remove the filter code in accelerometer and initialize the value.
The data will be a little noise, team can filter it by themselves.
The change is in SVN.

Wish good games in Iran Open.

-- 
Best Regards,
Xu, Yuan


On 04/03/2010 09:33 AM, Hedayat Vatankhah wrote:
> Hi Qu kyocoso,
> (CCing Xu Yuan)
> nan is an abbreviation for "Not A Number" and it has happened because 
> for some reason there is a problem in computing the "z" component of 
> acceleration. I have no idea about how this has happened, and so I'm 
> CCing this reply to the ACC sensor author, Xu Yuan.
> I hope that we could get this problem fixed ASAP.
>
> Thanks,
> Hedayat
>
>
> /*Qu kyocoso <ky...@gm...> <mailto:ky...@gm...>*/ wrote on 
> 04/02/2010 8:16:40 PM +0450:
>> Dear Hedayat Vatankhah
>>
>> My Robot received such message from server:
>>
>> (time (now 36.42))(GS (t 28.90) (pm PlayOn))(GYR (n torso) (rt -28.53 
>> 2.81 -4.42))(ACC (n torso) (a -0.34 9.96 nan))(HJ (n hj1) (ax 
>> -89.38))(HJ (n hj2) (ax -17.13))(HJ (n raj1) (ax -91.54))(HJ (n raj2) 
>> (ax -12.12))(HJ (n raj3) (ax 90.00))(HJ (n raj4) (ax 34.57))(HJ (n 
>> laj1) (ax -88.46))(HJ (n laj2) (ax 1.88))(HJ (n laj3) (ax -90.00))(HJ 
>> (n laj4) (ax -35.43))(HJ (n rlj1) (ax -1.87))(HJ (n rlj2) (ax 
>> 1.59))(HJ (n rlj3) (ax 51.93))(HJ (n rlj4) (ax -94.05))(HJ (n rlj5) 
>> (ax 54.89))(HJ (n rlj6) (ax -1.78))(HJ (n llj1) (ax 0.15))(HJ (n 
>> llj2) (ax 3.70))(HJ (n llj3) (ax 44.37))(HJ (n llj4) (ax -61.52))(HJ 
>> (n llj5) (ax 34.93))(HJ (n llj6) (ax -1.59))
>>
>> My Robot was lying on the ground at that moment. The "nan" had 
>> continued for many cycles.
>>
>> Please tell me what does "nan" mean? Why I got "nan"?
>>
>> Looking forward to your reply!
>>
>> Best regards,
>>
>> Qu
>>
>>