Solar Endeavours

Date: 2011.05.28 | Category: Community, General, Technology | Author: Chris Green

Last week I had the opportunity to meet the Cambridge University Eco Racing (CUER) team thanks to Mark Green (no relation!) of Intel, one of their main sponsors. The event was held to officially launch their campaign for the 2011 World Solar Challenge. I found the team an uplifting example of what can be achieved with true enthusiasm and dedication for what they are attempting to do.

For those who have not come across the World Solar Challenge before, it is a race from Darwin to Adelaide in Australia, a distance of 3,000km across the outback, held every two years, where the vehicle has to be powered entirely by solar energy. If that wasn’t hard enough the race has to be completed in less than 50 hours! A battery is allowed but it is only allowed to store up to 5kW hours of energy, less than 10% of the theoretical energy requirement for the trip. There are also limits on the amount of solar cells which can be used.

CUER first competed in the 2009 event, managing 14th place out of 26 entries – an excellent first attempt, especially when you consider the team is made up of undergraduates and doesn’t have multi-million pound funding like many of these challenges and world record attempts you see in the press. For 2011 they have set their sight on a much higher position and to achieve this they have to overcome a number of hurdles. Firstly, as is typical with student activities, nearly all of the original 2009 team have graduated and moved on, so in many ways they are having to start afresh. Funding is also a big challenge, to the extent that they cannot afford to replace their 2009 entry “Endeavour” so instead they are having to modify it based on information from 2009 and subsequent testing and computer modelling (for which Intel provides a high power cluster environment).

“Endeavour MKII” however is an ingenious piece of work, with many tweaks and changes including significantly reducing the drag factor, changing the battery technology (which caused major problems in 2009), implementing a new car management information and control system, as well as improving overall safety and stability (a key point when you are in a small, light vehicle being passed by an Australian outback road-train!). With all of these changes they are confident the vehicle is up to challenging the more established teams and bringing in a much higher placing.

The core technology can only go so far though; strategy and approach is also key – do you use regenerative breaking which adds weight or work on the principle that you won’t be breaking very often? What do you do when you hit cloud cover – speed through as quickly as possible risking excessive battery drain or hold a steady pace? Even at the end of the racing day (each day must be finished by 5pm) there are precious sun rays that have to be maximised by tilting the car towards the sun.

CUER isn’t just about a race though, they have also created an outreach program for schools with a hands on exercise in building a working model solar racer to help educate pupils about solar energy and environmental travel. The launch event also saw the conclusion of a schools competition run by CUER to design a car of the future, a competition that generated some very thoughtful entries from over 200 entrants. The shortlisted entrants were all invited along to the event to see the car, tour the labs where the team are working on it and take part in a hands-on educational session.

What’s great about CUER is that it fullfils a number of things; it’s a fun and exciting challenge, it helps inspire younger pupils via the outreach programme and it delivers some real advances in terms of technology and design that you can realistically see being used in future vehicle design. Hat’s off to a great team and good luck in October!

You can follow CUER on Twitter and Facebook and look out for the launch of Endeavour MkII around July before it starts its journey to Australia in August.

Finalist in AEO Excellence Awards 2011

Date: 2011.05.28 | Category: Events, General | Author: Tom McInerney

Etherlive is very pleased to announce it has been nominated as a finalist in the Association of Event Organisers Excellence Awards. Our submission focused on our continued delivery of innovative technology for the events industry, which this year includes femtocells, a crew accreditation system and cordless VoIP in addition to our normal services. The awards, which are held annually, highlight the best suppliers within the events industry so we find ourselves in the same category as 360 Creative Event Services, Melville Middle East and asp, which is praise itself. Winners will be announced on the 1st July.

Can you hear me now? Femtocell to the rescue…

Date: 2011.04.11 | Category: Events, Technology | Author: Tom McInerney

Mobile phones. Can’t live without them, can’t…well…er…you certainly can’t run an event without them. Mobile phone coverage continues to be a pain point for many customers. It’s normally the same story; everything is fine in the run up to the event but once the attendees arrive, making a call, using mobile internet or even sending an SMS becomes unreliable.

Telecoms operators may install temporary masts at larger events (for varying commercial arrangements) however in many cases these are only linked back to the local town, which may already be near capacity and therefore only compound the problem. Generally the mobile network in the area simply isn’t designed to handle a ‘density spike’ such as a large gathering of handsets all communicating more than is ‘normal’. For smaller and more remote events the situation is even worse, where often there is no coverage at all.

Shouting at the phone doesn't actually help, it just makes you feel better

Providing high density mobile coverage is a complex area, but  a femtocell can help keep key staff connected via their mobile no matter what else is going on with the normal mobile network. Femtocell technology is essentially a miniature cell phone mast for a pre-approved list of people. The unit can be linked to the internet services on site and route a number of concurrent calls for the authorised handsets as if they were on the normal mobile phone network. With a range of 150m radius it’s the perfect unit to have at a production enclosure, box office or artist/VIP area.

The pre-approved handsets can be added in a matter of seconds, whilst the unit itself is outdoor ruggedised so can be installed on the same infrastructure which carries other services such as site Wi-Fi, like for example our communications tower light.  So what’s the catch? It’s only Vodafone handsets which will work with the unit today. Although not ideal it does at least provide a way of continuing to use the service, regardless of everyone around watching their bars disappear. For non-Vodafone handsets temporary Vodafone SIMs can be provided.

The femtocell has been added to our 2011 services along with some other additional voice communication products such as a specialised wireless handset which integrates with existing VoIP services,  all designed to keep an event operations team functioning smoothly.