Inveneo ARM Archives
- Posted by Inveneo on September 23, 2015 in the categories: Events
Inveneo, in partnership with ARM, LeMaker, and Protocase, is pleased to announce that a winner has been selected for its recent $10,000 Micro-Data Center Design Challenge. Congratulations to William Weatherholtz and his team “Micro Weather” who are the winners of the $10,000 challenge! Mr. Weatherholtz, who lives in Utah in the United States, describes his team’s design in the following statement:
“This design challenge [was] essentially an enclosure and heat problem. The concerns with racking, powering, and layout of the data center components are relatively trivial to determining how to prevent heat issues.
Our design plans to tackle these difficult challenges…by mounting the solar panels on top to converting the highest source of incident radiation/heat into useful power. We anticipate the overall design being quite shallow, to maximize solar power generation, minimize cost, and minimize failure due to the enclosure tipping over. There is some give and take here however, as a taller fixture will allow higher thermal convection, since the air moves faster.”
(Pictured, L-R: Garrett Johnson, Victoria Johnson, Kelly Weatherholtz; not pictured Joshua Wickern, Bradley Weatherholtz, Landon Weatherholtz)
Coming in second place is “RuggedPOD”, a team from France who was lead by Jean-Marie Verdun. Each member of RuggedPOD will receive a Google Nexus 7 tablet as a prize for his or her hard work and design.
For this design challenge, Inveneo gathered together judges from its own staff, the Oak Ridge National Laboratory, ARM, LeMaker, and several members from Protocase. There were 50 teams who were accepted to the challenge from all over the world, including China, Italy, Rwanda, India, The United States, Turkey, Kenya, England, Poland, and Haiti. The judges and Inveneo’s partners were amazed with so many terrific designs, which were entered into the contest.
LeMaker, Protocase, ARM, and Inveneo would like to congratulate all the contestants and teams for all their outstanding engineered designs!
Inveneo would also like to thank its partners ARM, Protocase, and LeMaker for all the collaboration and great ideas that made this contest an incredible success. We hope that these winning designs (and other outstanding contributions) will become great innovations in the world of micro-data centers.
- Posted by Inveneo on September 11, 2015 in the categories: News
Note: Inveneo, in partnership with ARM Limited, LeMaker, and Protocase, is pleased to announce that a winner has been selected for its recent $10,000 Micro-Data Center Design Challenge. Congratulations to William Weatherholtz and his team “Micro Weather” who are the winners of the $10,000 challenge! Coming in second place is “RuggedPOD”, a team from France who was lead by Jean-Marie Verdun. Each member of RuggedPOD will receive a Google Nexus 7 tablet as a prize for his or her hard work and design.
They have different interests. One teaches dance. Another is a helicopter pilot-in-training. One is a software engineer. Another is a carpenter. Still another, a studio artist. But they came together with a shared purpose: to try to improve conditions in Third World countries.
Meet William Weatherholtz and team, who just won the Inveneo solar-powered Micro-Data Center Design Challenge ( Bruce Baikie) for their Micro Weather station design. The team’s winning entry is an object lesson in how creative methodology, a diverse team and carefully considered components selection just might help transform developing societies.
“I have a soft spot for Third World countries and I’m really interested in finding ways to improve conditions there,” Weatherholtz said in an interview. “I felt like this was a project that played to my strengths and my desire to educate.”
The design criteria for weather stations is unique: How do you deal with rain, rust, long-term durability, a lack of power sources, and little critters that like to gnaw on things in the wild? Weatherholtz (pictured to the far right of the nearby photo) and his team (pictured, L-R: Garrett Johnson, Victoria Johnson, Kelly Weatherholtz; not pictured Joshua Wickern, Bradley Weatherholtz, Landon Weatherholtz) embraced a unique methodology that included using Edward de Bono’s Six Thinking Hats philosophy. The approach is designed to help improve team perspective and collaboration during projects. This was a particular interest because the seven team members were dispersed across the country.
“Everyone was assigned a different perspective,” said Weatherholtz, a mechatronics engineer. “So for example, someone was assigned an aspect of the design that only considered price; someone else would focus on aesthetics, and so forth.”
The team rotated through these different considerations and perspectives and then amalgamated different parts of the design into the one they liked.
The team started by identifying the customer needs and translating those into engineering characteristics:
- What type of battery was required?
- How much back-up power would be needed? (the team targeted five days for it to run on back-up power initially but ended up at 2.5-3 days—more on that shortly).
- What other design considerations might be unique for a developing country?
- What were the environmental needs of the device casing?
Here’s a look at how the team tackled some of the design considerations.
This was an extremely critical component that needed to be as reliable as possible. Additionally, the team had to understand how much power they could pack into a small space. Should they push the limits for longer back-up power capability and accept the consequences? Additionally, what type of batteries could be shipped internationally?
“We tried to pick a battery with a very high energy density and moderate size, but the battery is still pretty heavy and large,” Weatherholtz said. “Adding another battery would mean another cubic foot of space and an extra 60 pounds in the design.”
At the end of the day, two and a half days backup capability seemed good enough for most applications, he said. That meant the battery could recharge in four hours with sufficient power, and most places get at least five hours of good sunlight, he added. The team ended up selecting an absorbent glass mat (AGM) battery—essentially a golf cart battery—that doesn’t spill, tip or have vulnerable components inside.
This was one of those developing-country considerations, where ready reliable power sources are hard to find, if not non-existent. Even though it was the team’s first time working with solar, adopting the technology was key. “It’s a fantastic solution in a remote data center application because a data center is a static structure,” Weatherholtz said. “It allowed us to take advantage of that big fusion generator in the sky.”
The team considered plastic but wanted the system to be able to take a pounding. So they settled on aluminum, a reliable material, which conveniently could serve as a sizable heat sink. They designed to a worst-case scenario of 50C ambient temperature with direct sunlight, no humidity, and no moving air.
“One of our main design criterion was to make the enclosure—and enclosed electronics—reliable. For us, that meant it needed to be completely sealed with no moving parts,” Weatherholtz said.
Single Board Computer
The contest criteria specified the SBC. As a designer and engineer, Weatherholtz said he doesn’t really like being shoehorned into a solution, but, that said, “the Banana Pi boards were hard to beat,” he acknowledged. The Banana Pi, based on ARM Cortex-A7 with Mali-400 GPU and running open source software, is designed to be inexpensive, small and flexible.
The technology was “robust, open source and low power,” he said. “When you’re dealing with IoT applications and micro data centers, you don’t have a lot of power and you can’t have a lot of heat, so ARM is best.”
One challenge is that boards such as this typically have two sources of heat — RAM and processor. The team undertook considerable thermodynamic analysis and determined that getting rid of heat was key. The Banana Pi boards were ideal, Weatherholtz said, because the two sources of heat were on the bottom face and as a result, the team was able to direct the heat in the optimal direction. Had the CPU/RAM been on top, then it would have been more challenging to get the heat out, he added.
What was his biggest lesson?
Weatherholtz and team spent a total of 150 engineering hours on the project, for which competitors used ARM-based solutions to create the “micro-board chassis” designs. They will share the $10,000 prize and the design will be built and deployed in the developing world.
“I really can’t overstate the importance of thermal analysis in projects like these,” Weatherholtz said. “If heat doesn’t have a good way to escape, it’s going to build up and cause high temperatures that make your electronics fail, or at least fail prematurely.”
“For us, making a low thermal-resistance path out of the case was a main design consideration. We identified where the heat was being generated (see image right), and then got it out. Everything centered on that. Where we placed components, what we placed them on, how we connected them to what they were placed on… everything.”
Written by Brian Fuller, an employee of ARM. This post was originally posted on ARM Community and was republished with permission from the author.
- Posted by Inveneo on March 11, 2015 in the categories: Events, External, Press
March 11, 2015 San Francisco, CA – Inveneo, in partnership with ARM Limited, will launch a solar powered Micro-Data Center Design Challenge, starting on March 11th, 2015. The top prize for the competition is $10,000 and the winning design will be built and deployed in the developing world.
Inveneo is seeking students, engineers, researchers, and innovators to submit their design of a solar powered micro-data center. Given the harsh environments present in much of the developing world, designers will need to create a functional micro-data center that can be powered with a solar photovoltaic system, withstand intense heat and humidity, and run completely without access to standard air conditioning.
Candidates will use ARM based solutions to create the “micro-board chassis” design that will use off-the-shelf ARM based processor micro boards (i.e. Raspberry Pi, Banana Pi/Pro, ODROID, etc.). Inveneo has partnered with LeMaker, which is offering a discounted 15 Banana Pro kit that can be used to build a prototype micro-board chassis.
“We envision a new type of blade server enclosure design. The design will use 15 of these new generation microcomputer boards and will be very low energy usage, DC powered, and passively cooled,” says Bruce Baikie, Executive Director of Inveneo. “Just as BackBlaze changed the low end storage market with their open source design, we are planning to revolutionize the low end blade server market with this challenge.”
The contest is open to applicants who are at least 18 years of age, in teams that range from three to seven members. The contest’s panel of judges includes industry experts from Inveneo, ARM, and LeMaker, among others. The top two winning designs will be announced on July 15, 2015.
If you are interested in entering this design challenge or to find more information, please visit http://www.inveneo.org/designchallenge
Inveneo is a San Francisco-based 501(c)(3) non-profit social enterprise that designs and delivers sustainable computing and better access to broadband Internet to those who need it most in the developing world. Inveneo enables organizations working in developing areas to better serve people in need. Our team works to transform lives through access to education, healthcare, economic opportunity and relief. Inveneo and its partners have delivered projects in 31 countries and are impacting the lives of over 3 million people in some of the poorest and most challenging regions in the developing world.
For More Information Contact:
- Posted by Inveneo on January 26, 2015 in the categories: News, Relief
The Inveneo team has partnered with NetHope, EveryLayer, Cisco, and Facebook to extend broadband connectivity to medical centers fighting the Ebola crisis in West Africa. Our team is implementing the most relevant pieces of technology on the market, and often we rely on ARM-based products. For the Ebola Response Connectivity Initiative (ERCI), the Inveneo team plans to use the BeagleBone Black Rev C, a Linux computer the size of a credit card. It is a “heart beat” technology that Inveneo will heavily rely on throughout the ERCI project to monitor the broadband network health.
The ARM-based Beaglebone with its energy efficient, yet powerful processing power, offers the project real-time analysis through its AM335x 720MHz ARM® processor. The project will place Beaglebones in strategic points in the network for monitoring using SmokePing software.
A BeagleBone Black
SmokePing works by sending many tests within a small period of time called pings and then calculates the median. Inveneo found that this open source program SmokePing is the single most useful measure of network performance, with a single graphic showing both latency and packet loss. The data then is displayed graphically in a Network Operation Center (NOC) being established in Ghana. By using this approach, the NOC staff can be proactive in addressing network outage, bandwidth issues, and overall network reliability.
In addition to SmokePing, our team will be using Zabbix, which will be installed for network monitoring. Zabbix is a free, open source program that monitors the radios and networking hardware over various protocols, including SNMP (Simple Network Management Protocol), which is a standard protocol for network monitoring. While SmokePing monitors the quality of the connection through packet loss, round trip time, and jitter, Zabbix collects a lot more information, has a very good user interface, and generates alerts via email when a device is performing poorly or is offline. Finally, it reports to the cloud so one can use a web-based front-end that can be assessed from any location (as long as there is an Internet connection).
Our team will use BeagleBones because they run the Ubuntu operating system and also provide access to other command line tools which are useful for monitoring the network that would be used/ran directly by a human. By adding Smokeping and Zabbix, our software will be constantly running in the background and will be accessible from the cloud for access by the NOC.
An example of the SmokePing layout.
An example of the Zabbix layout.
- Posted by Inveneo on July 21, 2014 in the categories: Publications
Inveneo has teamed up with USAID and ARM Limited to publish our newest White Paper, “Emerging Markets: Top ICT Hardware Challenges”. Led by researcher Dr. Laura Hosman, formerly of the Illinois Institute of Technology, this publication has been created to educate engineers, designers, and manufacturers. Our report is to make ICT practitioners keenly aware of developing world hardware technology requirements and realities.
The top five ICT hardware challenges are:
- Environment-Related Issues
- Maintenance & Support
Inveneo has been happy to partner with ARM, USAID, Dr. Hosman, and ICTworks to conduct this research and release this White Paper. Read the full report here.
The infograph was created by Eric Zan. Check out his website at http://www.ericzan.info