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General Key Challenges In Developing Embedded Systems

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There are two classes of challenges in developing embedded systems. We have explained them under two categories below: the rapid changing challenges and non-rapid or slowly changing ones.

 

  • Slowly changing and non changing challenges

Some challenges involved in the design of embedded systems have not really changed in the last couple of decades. The drive for robust products with increased performance at reduced cost, size and weight, for instance, will continue as long as developments in the underlying technologies will permit (Christoffer, 2006; Philip, 1996). Low price translates to reduced resources such as processor speed and memory size which in turn constrains software development and execution. Often embedded devices are very sensitive to cost. A variation of even a few cents per device can be significant due to the huge multiplier of production quantity combined with the higher percentage of total system cost it represents.

 

  • Rapid changing challenges

Other challenges involved in embedded system design are changing rapidly. Three areas should be given particular attention : complexity, connectivity and usability.

 

(a)    Complexity

While the steadily increasing transistor density and speeds of integrated circuits offer tremendous opportunities, these improvements also present developers (individuals, teams, organizations) with a huge challenge: how to handle the added complexity? A modern embedded system can consist of hundreds of thousand lines of software code. More and more products now include complex embedded systems and the development organizations must evolve with the products and their technologies. It is necessary to establish suitable development processes, methods and tools. Developing product platforms also ensures re-use of technology and increased efficiency.

 

(b)   Connectivity

Before the widespread deployment of digital communication, most embedded systems operated in a stand-alone mode. They may have had some capabilities for remote supervision and control, but, by and large, most functions were performed autonomously. This is changing rapidly. Embedded systems are now often part of sophisticated distributed networks. Simple sensors with basic transmitter electronics have been replaced by complex, intelligent field devices. As a consequence, individual products can no longer be designed in isolation. They must have common components. Communication has gone from being a small part of a system to being a significant function. Where serial peer-to-peer communication was once the only way to connect a device to a control system, field buses are now able to integrate large numbers of complex devices. The need to connect different applications within a system to information and services in field devices drives the introduction of standard ICT technologies like Ethernet and web-services.

 

(c)    Usability

Complex field devices are often programmable or configurable. Today’s pressure transmitters can contain several hundred parameters. The interaction with a device either from a built-in panel or from a software application in the system has become more complex. The task of hiding this complexity from the user through the creation of a user-friendly device has sometimes been underestimated. Most other requirements are easily quantifiable or absolute, but “usability” is somewhat harder to define. Yet an embedded system that is intuitive and simple to operate will reduce the cost of commissioning and maintenance. It will reduce errors and be a key factor in the overall customer satisfaction. That is why usability must be given a high priority in the design and development of products, from the conceptual stage, right through to the final testing.

 

7 Points To Consider In Developing A Mobile Strategy By BuzzCity

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We received a well written piece, via email, from Michael de Souza, of Buzzcity. In the piece he noted that though the mobile eCPM (advertising yield per thousand impressions) seems pretty low in mobile, the opportunity is big and growing. To help stakeholders get into this game, he presented 7 key factors that should be examined as firms develop mobile strategy. We have adapted those points below:

 
1. Mobile reach is massive and growing, overshadowing all other media

Mobile dwarfs all other media by a long margin. It reaches more people than TV. There are three times as many phones capable of displaying a web page, than there are PCs in the world. There are more active mobile phone subscriptions worldwide than toothbrush owners (5.4 billion vs 4.2 billion). Several of our top markets see network traffic doubling each quarter.


2. It’s not an either/or

When considering a mobile deployment, remember that it’s not an either/or decision (mobile vs the web). It’s an additional channel, allowing you to reach more consumers.

 
3. Your content can be adapted easily

A couple of years back, we were using our mobile screens to do little more than read SMSs and dial numbers. Since then, behaviour has shifted radically, screens have improved, and millions of users now consume full-length feature articles on mobile devices daily.

 
4. You’ll reach different users

Many marketers, publishers and advertisersmistakenly view mobile as an extension of their fixed websites – a convenient anytime, anywhere channel to reach the same user base.

 

5. Are you sabotaging your own potential success?We’ve seen loads of publishers set up premium ad sales teams, armed with rate cards and brochures and ‘advertorial collaboration opportunities’, to sell their inventory to agencies and brands. Because they currently see mobile as the poor relative (from an earnings perspective), they often throw mobile inventory into the deal as a ‘value add’.


6. Spend time and energy designing your mobisite, and you’ll be rewarded handsomely

You’ve no doubt spent considerable time, money and effort designing and optimising your website. You may have optimised it forsearch, and chances are that you pore over your analytics on a weekly (if not daily) basis. Your challenge will be to apply all the lessons you’ve learnt to the mobile web.

 7. Now back to that question about advertising yields…

BuzzCity, like most ad networks, is bid-driven, and therefore governed by supply and demand. Advertisers choose how much they’re willing to pay per click. If they’re not able to spend their intended budget each day, they’ll need to increase their bid, to ensure that the adserver gives their campaign additional exposure, and results in enough clicks to meet their targets.

 
The bottom line

If there are two words of advice we can give right now, it’s these: “don’t panic”. If you have a mobile presence, you’re in the right place. Keep going. It’s just a matter of making incremental improvements, and building on your efforts.


3D Televisions – Before You Buy Them In Lagos, Nairobi, Freetowm, And More

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Recently, we received a phone call from someone who is receiving a 3D TV as a gift.

 

Panasonic, Samsung, Sony and the hosts of other TV giants are shipping 3D TVs worldwide.

 

They will offer choices: Plasma or LCD. Personally we like the plasma TV though LCD is cheaper and lighter. There is also the good OLED (organic light emitting diode) TV. Your money is your choice. And everyday, new ones are coming.

 

But what is 3D TV? It is nothing but making your TV viewing experience to appear real. It employs techniques of 3D presentation like multi-view capture, stereoscopic capture, 2D with dept, and 3D display to project a view of television into a realistic three-dimensional field.

 

In other words, when you are watching football and someone shoots the ball, you may feel that the ball is coming out of the TV to hit you. Your room becomes an extension of the TV and you may think that a stone thrown by an actor in the TV will hit your head.

 

But before you start buying this TV; please note that you must buy an eye glass or goggle to enjoy 3D TV. You need a special glass which you must wear to have the 3D experience. The problem is that any glass is brand dependent because the universal standard is still yet to be developed. Your Panasonic glass may not work in Samsung 3D TV.

 

When you invite your neighbors to watch a game with you, you must also provide them glasses if they must experience the 3D experience. The problem is that one of those extra glasses could cost up to $150. Imagine having neighbors in your house and everyone is wearing a special eye glass, just to watch a TV. That is it.

 

It seems that engineers are limited here. It is either Nature does not want us to watch 3D TV that we need a goggle or that the engineering is so crude that we have not figured out how to make it to eliminate the goggle or glass. But there is good news as companies like Samsung recently announced a breakthrough that will enable 3D experience without the goggle.

 

Though it has not been validated, some people have noted that 3D TV could pose health risks for children and pregnant women.

 

So before you buy, remember you must budget for the eye glasses as well.

Why African Leaders Must Learn From Turkey – Favorable Business Ecosystem Is Vital For FDI

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Turkey used to be known for its political turmoil. Investors used to see the country as an unstable nation with a radioactive financial market that sensible fund managers must stay away. The Judiciary has even tried to ban a ruling party. A decade ago, Turkey’s outlook was very bleak.

 

Speculative trading on bonds and currency by major Turkish banks permeated the financial crises that rocked Turkey.

 

Not anymore.  Turkey’s economic fundamentals are very good and the economy looks very promising. The population has a solid middle class with a good manufacturing base. Industrial clusters are emerging and researches in emerging technologies like biotechnology and nanotechnology are growing.

 

Besides, it has an untapped service industry, especially in finance, and the population is very young.

 

Their fundamentals are so good that this nation has attained a fairly relative stable inflation and interest rate. This is something which was not possible in the political crises ridden old Turkey. While Greece and Bulgaria are in crises, Turkey came out of the global recession with minor scratches.

 

Right now, Turkish banks will be buying some distressed Greek banks.

 

This country did not bailout a single bank. Also note that Turkey had lived on IMF loan for years. The whole theory in some African quarters that a loan cripples country is not valid here. The problem in Africa is that when loans are taken, politicians corruptly waste them.

 

You can take loan and come out stronger if you use the loan properly. Brazil was able to emerge a stronger nation despite its currency crises. Loans helped them.

 

I have come to understand Turkey more while working in my new book, Nanotechnology and Microelectronics: Global Diffusion, Economics and Policy, where one of the contributors discussed the technology transfer and diffusion paradigms of nanotechnology.

 

What happened? Few years ago, the duo of Prime Minister Recep Erdogan and his Deputy Ali Babacan engineered some reforms. They privatized some state firms, reduced government spending, strengthened and enforced financial and capital market regulations, and recapitalized the banks.

 

It is important to note that these were done transparently, unlike similar programs in Africa where reforms are designed to manipulate systems. The banking reform in Nigeria was done; but the regulation was so weak that after less than six years, the government had to bailout some banks.

 

The privatization program in Nigeria was executed so fraudulently that some firms were sold to politicians at extremely discounted prices. There have been allegations of rigging the nation’s stock exchange after the country’s richest man (according to Forbes) was involved in questionable trading on competitor’s equities.

 

So, Turkey did more that reforms; they followed up and executed them very well. Export is up; FDI continues to flow into Turkey. GE, Ford and host of many multinational giants have called Turkey home for producing their products and this has helped the nation’s manufacturing climate.

 

Africa must note that nothing comes by chance in this century. You must have plans. Turkey has positioned itself through education, reforms in capital markets, and other ways to attract global resources.

 

The world has heard them and the country is doing well. It is estimated that Turkey will be the next League of Nations after the BRIC countries of Brazil, Russia, India and China that will propel the world gross product.

 

It is time Africa revamps its leadership and provide roadmaps that can help citizens make Africa great.  We must bring people that can engineer new ideas to position the continent instead of recycling people which have not added any value for years. There are many smart and committed Africans around the world. It is time we get their ideas to move the continent out of our present stasis.

Video Phone Is Coming – Watch Out For Next iPhone

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I remain confident that the next generation smart phones will have video capabilities which will enable seamless communication. In other words, you can see your buddy on the phone while you guys are speaking on the phones.

 

For me it is the only thing that does not exist right now in smart phones. Apple, Logitech or Nokia could do this before this Christmas or next. I am certain that it will come.

 

Sure, the world has seen many video phones before.  That is not what I am talking about. I am talking about elegant new creators, similar to iPhone. They would be stylish with nice ergonomics.

 

The market is ready for these phones and I think they will do well. There are many markets it will cannibalize. It will eat into the airline business since people will see video to video while talking. Why travel when you can see grandma on video and she can see you?

 

It is possible they can make it so that you can project the video on a wall.

 

Yes, that brings the need for Cisco to have a family portable Telepresence. People, it is time they make one I can afford. The industry size one that costs around $35,000 is not for personal use.

 

If Cisco can make a portable one, I will get one for my family in Nigeria and we can talk live. Yes, I know there are bandwidth issues, but I think Nigeria is going to improve with time.

 

Have you noticed that if we have video phone, I can teach students in Nairobi right from my house in the U.S.  They have the phone, I have mine and they can watch me while I speak. It will be very cool to get to the level where people can communicate at that level.

 

Do you know that video phone will revamp healthcare delivery in remote Africa? Just ask the patient to position the phone and you can get a good assessment of the problems without even traveling.  People spend a lot today to do exactly that, but in the new era, all it will take is phone and wireless network (possibly 4G network).

I cannot wait for simple video phones that work.