View Single Post
Old 09-27-16 | 01:05 PM
  #26  
John_V's Avatar
John_V
Senior Member
Titanium Club Membership
10 Anniversary
 
Joined: Jun 2011
Posts: 5,585
Likes: 122
From: Tampa, Florida

Bikes: 2017 Colnago C-RS, 2012 Colnago Ace, 2010 Giant Cypress hybrid

Originally Posted by tarwheel
Both Cyclometer and my bike computers are set to count time while actually cycling, rather than stopped time. As John V stated, Cyclemeter reports riding time (while you are actually moving) and stopped time. My bike computers are set to only record time while my bikes are moving -- so the timer quits when you are at red lights, coffee shops breaks, etc.

Obviously, the two systems are using a different means to record moving time. However, I suspect that the bike computers are more accurate than Cyclometer. I watch the timer function on bike computers while I am riding and see them stop recording at red lights, although sometimes a few seconds might tick off before stopping. I can't actually watch Cyclometer while riding, but when I compare times after rides, Cyclometer records less time -- ranging from a few minutes on shorter rides to 5-10-20 minutes on longer rides. I presume that Cyclometer is set to stop recording time when you speed drops below a certain mph, but not sure if that's the case.

I have tried other cycling apps such as Strava and MapMyRide, but prefer the functionality of Cyclemeter. However, perhaps I should try some of these other apps to see if I get the discrepancies in time compared by my bike computers.
After reading your post, it got me thinking about when Cyclemeter actually starts and stops the timers. On today's ride, I displayed my RFLKT screen page to the one I have set up for time; it display's ride time, stopped time and total time. As I came to a stop, I did notice a slight lag in time between the time I stopped and the time that Cyclemeter started the stopped time clock but hardly no lag between the time I started back on the ride and the ride time clock starting back up. I stopped about 6 times on a 50 mile ride so the extra time it took between lag time and the stopped time clock kicking in couldn't have been more than a minute.

What I think is happening here is the speed/cadence sensor is not sending a signal to Cyclemeter, which then goes into sensor fail mode and starts using GPS, which now has a lag between the time it starts reading the GPS data and the time the GPS data shows that you are not moving. When you start up again, the speed/cadence sensor sends a signal and starts the ride time timer. I have Stop Detection turned ON so I think that if it were off, even if you have a speed sensor, it would keep the ride timer going because it is using the time from the GPS data.

Anyway, that's my observation. I don't know how much that matters to others, but had I not tried it today, I would never have known about the slight lag time when stopping. I guess that for me, it's not a big issue.
__________________
HCFR Cycling Team
Ride Safe ... Ride Hard ... Ride Daily

2017 Colnago C-RS
2012 Colnago Ace
2010 Giant Cypress
John_V is offline  
Reply