Wooooooohoooooooo! Total distance covered: 450km over 10 days. UMPC, Phone, Camera, GPS and Torch all topped up from Solar energy. I made it!

Distance since last post: 65km
Weather: Dark and cloudy.
Notes: Don’t drink two beers at the finish line without having something to eat first!!!

Today at about 1700 (UTC+2) I crossed the unofficial finish line on the Solar UMPC tour. The official finish happens tomorrow with my sponsors, VIA, but that will be at the same place that I enjoyed the beer shown above. For me, the tour is complete and after I’ve posted this and used up the last hour of battery life on the Samsung Q1b, I’ll be connecting back to the electricity grid to charge up my phone and umpc for the first time in 9 days ago.

Finish line!

It has been a fun and challenging time trying to balance a 450km cycle camping trip with work and a solar powered UMPC experiment but its been fully worth it. And that includes that last three days of full cloud cover and zero solar power possibilities. I’ve learned a lot about how solar energy works, how it can be applied to mobile computing and how different battery technology affects the results. But it hasn’t just been about solar energy. Its mainly been about energy efficient mobile computing, mobile Internet connectivity and the balance of tasks between a mobile phone and a UMPC. Although I managed to perform a lot of tasks on my simple mobile phone, none of the mapping updates, images, GPS tracks and detailed postings would have been possible without a UMPC and the VIA-based Samsung Q1b has been a reliable and efficient partner all the way through. It hasn’t missed a single heartbeat.

The last 65km leg up here to Duesseldorf was a fun trip. Two friends of mine, Steve Carr and Ian Emmett, came with me and we had a good fun ride. Bessy managed to clock 38.2km/h, Steve lost a mudguard and Ian managed to get a branch stuck in his (overly complex, if you ask me!) gears. Bessy has been an absolute star too and she’ll be getting a good soft rub-down when she gets home. Thanks Bessy the Blue Bakers Bike.

As we rounded the last corner of the journey and saw the Vodafone Germany HQ and a long line of riverside bars I knew it had been worth it. I feel so happy that it would be impossible to describe it within the limits of my battery life here but its been a perfect week of work. I want to start planning the next project ASAP!

Goodnight Duesseldorf. see you tomorrow on the finish line again where I’ll be showing off the Solar-UMPC kit to the journalists. I hope it doesn’t rain!

When i’m fully charged up (personally) again in the next few days i’ll be posting all the photos, an overview of the trip and a detailed report on how things can be improved. There’s a lot to be learned from the Solar-UMPC tour.

Location: Koeln
Distance since last post: 15km
Weather: Brightening. Still 100% cloud

As I was leaving Bonn this morning I passed a trio of mountain bike riders. They where looking closely at one of the bikes and I heard them say ‘I think the gear has broken.’ My army-pattern bike might be heavy but its as solid as a rock!

Journey today was rather short and uneventful. There was little traffic on the paths apart from the  occasional animal and a rather stupid (and probably deaf) old man that cut across me to turn into a side path. You do NOT want to be hit by my bike! Fortunately we passed each other safely and gave each other a friendly wave (sort of!)

I didn’t get more than about 10 minutes computing power from the sun today. It was hopeless even stopping to try! Tomorrow is the last day for collecting solar energy and I am praying praying praying for just a few hours of sun to take me through to the finish line in Duesseldorf at midday on Monday.

I have updated the route map with a few more images. Hope you enjoy them.

Crossing the Rhein on a tiny Ferry (below)

Location: Sürth
Distance since last post:15km
Weather: warm but cloudy and wet.
Notes: Always wear tight underwear when cycling!

A business issue this morning cost me 25% of my battery power and with the current weather situation, cloudy and wet, that could cost me dearly. There was a brief bright period at around noon where i slammed on the breaks and stopped to put out the panel but it was short, lived. The mobile phone needs a top-up and the GPS too. It’s fair to say that this has not been the best week for solar energy but despite that, it’s been possible to get a few hours of umpc work done every day. The bad weather has also made me think long and hard about how the process can be improved. I have some notes that i am going to try to type up tonight but that, of course, depends on my battery!

Distance since last post: 75km
Weather: Cloudy, rainy.
Forecast: Bad for the next 3-days. Looks like I’ll have to be careful!
Notes: Crashed into a lamppost while I was trying to mount my bike. No damage. Phew!

View towards Remagen (two bridge towsers can be seen at base of hill) in terrible weather.

No sun, no energy although somehow I’m managing to squeeze enough out of the clouds to charge the phone which is pretty amazing. Luckily I have enough juice on the UMPC battery and the Li-Ion battery to give me about 4 hours of computing. If I spot any sun at all over the next 3 days I’ll have to stop and sap up as much as I can. Its going to be very tight. Will I have enough left for the final report in Duesseldorf?

Right now I’m in Bonn and at home with my wife. I’m only using battery power and won’t be charging anything so there’s no change to the plan. Apart from a long bath and a good sleep tonight ready for the last two legs on Saturday and Sunday.

When I did my first tests and calculations about the use of solar power to drive a PC I was quite amazed at the inefficiency of the process and today’s ‘laboratory conditions’ test proves just how much room for improvement there is. It’s thanks to devices like UMPCs that this is project is at all possible because I really doubt it would have worked with even a ‘power saving’ notebook PC.

Today I stayed at the campsite and put the Solar panel and Li-Ion battery through a 3 hours test. Its was a cloudless day with a very thin haze, 22 degrees centigrade and for reference I’m located at about 50 degrees north and 7 degrees east. The date is the 30th of August which is heading towards Autumn here in Germany. The test was done from 11:00 – 14:00 and I took the empty Li-Ion battery and charged it with the solar panel for 3 hours.

I estimate that about 1.2KW of energy hit my 7000 cm2 panel with about 660W falling on the Solar cells (3500 cm2). After conversion to electricity it created about 50w/hr of energy. Of that, about 40W was taken by the Li-Ion battery because it only uses a fixed current and voltage. It won’t adapt to the power available. Due to input voltage conversions and charging losses, this left me with an estimated 30W of energy and after taking this through yet another set of voltage conversions and charging process, left me with a rather poor 18W of power. Of course this is enough for a few hours of work but isn’t it incredible that so much power is wasted (or rather passed back as heat!)

I spent the rest of the afternoon trying to work out how this process could be improved and I’ve come up with a list of ideas that could help. I’ll talk though them in the next post but right now I need to put some more cream on the back of my legs because through all the concentration I forgot about the sun and I’ve burned the bit right behind the knee. That’s going to be really enjoyable tomorrow when I make the 70km dash to Bonn.

Here’s a diagram I created quickly on the Q1b. Hopefuly it makes things a bit clearer. How would you improve the architechture?

This part of the Rhein, from Bingen, all the way up to Bonn, is really wonderful. And the campsites just keep getting better!

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I’m still not 100% sure how much energy I managed to capture today but it looks like around 30W which should give me enough time to post without too much worry.

I stopped at about 10:45 and set up my solar collection point, ate my breakfast and waited. And waited. And got a bit bored! I managed to hold out until 1400 and then went for it. Nearly all the way up to Koblenz. Total distance for the day was about 61km which is really good and way ahead of schedule. I can now plan a rest day. Or rather another solar collection day!

I’m going to finish this entry now and make sure its posted before the battery runs out although right now its looking good.