Connect with us

Featured

IoT critical to smart cities

Published

on

South Africa is in the midst of the fourth industrial revolution as it becomes more and more connected. RESHAAD SHA, Chief Executive Officer, SqwidNet, believes the heart of a smart city is the Internet of Things.

Along with the rest of the world, South Africa is in the midst of the fourth industrial revolution, in which the smart use of information and technology is reshaping societies. One of the most apparent ways in which this is happening can be seen is in the growth of the Internet of Things (IoT), where smart, connected devices are being deployed in cities and industries globally, to gather data and glean contextual insights which are used to achieve higher levels of efficiency, productivity and utilization of scarce and natural resources.

The reach of IoT is staggering. In the near future, for example, the growing population of nations will be fed by crops that are smartly planted at the right time and in precisely the right place to produce maximum yield. Leveraging IoT, farmers will be informed via connected sensors, of the precise dosage of water, fertilizer and nutrients that the piece of cultivated land will require to produce an optimal yield in terms of volume and quality.

As the need to respond to the increasing demand for food as well as  and the effects of climate change on food security becomes a dominant concern, smart agriculture is just one of the ways in which IoT will, no doubt, prove its value.

Full steam ahead

More immediately, large metros in South Africa often face challenges with meeting citizen’s demand for electricity, dealing with water shortages and wastage, and managing other resources. Each of these challenges are only expected to grow in the years ahead due to increasing urbanisation, and in Africa this has become a significant driver behind conversations focusing on Smart Cities.

The good news is that exciting progress is already being made in South Africa, as we are seeing IoT projects underway and the development of smart cities being placed top of the agenda. Both, it should be noted, work hand in hand. In fact, IoT is essential to the success of a Smart City, as it enables the bridging of the physical world with the digital one.

Doing so enables a metro to gather real-time data from millions of objects, such as water meters, electricity meters, waste bins, traffic lights, and street lights. This forms the basis upon which contextual data can be collected, analysed, and used to manage the city in a smarter, predictive, and proactive way. A few practical examples of this include better traffic management by informing travellers of congestion; dealing with crime by leveraging sensors that detect gunshots in high crime zone areas; and smart waste management, in which metros are automatically informed by sensor-equipped bins when refuse needs to be collected.

The prime objective

Beyond the general benefits of living in a Smart City, with the greater quality of life brought about by a metro that is more efficiently managed, the burgeoning IoT industry presents some real opportunities for entrepreneurs in South Africa, particularly those businesses which enable big data to be efficiently gathered, processed, and analysed.

Job creation need not be limited to businesses in the big data space. Having smart cities in place will ensure that South Africa is ripe to attract global investment from the business sector. The most compelling advantage of smart cities is that they may very well offer an opportunity to boost South Africa’s economy, which would benefit all its citizens.

Rising to the challenge

However, before we can reap these benefits, there are some real challenges that must be addressed. The sheer volume of connected ‘things’ means the technologies make these objects smart must be available at a low device, connectivity, and implementation cost, so that substantial demands on cities’ budgets are avoided.

It is here in particular that SqwidNet, the result of a partnership between DFA and Sigfox, has an important role to play. Sigfox technology enables low-cost IoT connectivity for, among other things, water and electricity meters and city building and facilities management, which enables the deployment of smart city solutions at scale. The network now covers all the 8 metros in South Africa, and the rollout plan is currently focussed on covering all the national roads as well as moving to other cities and towns. Network coverage will exceed 85% of the South African population by  the end of the year.

Other considerations that will need to be taken into account include the power requirements for smart objects, as it is impractical for the bulk of these objects to be connected to a fixed power source. Rather, sensors will have to consume very low power, allowing them to run on a small battery for several years. The Sigfox network and device ecosystem is designed so that devices only become active when they need to send or receive a message to or from the network. As a result of this, devices can last up to 15 years or more on a battery, depending on the use case.

Finally, the network that these objects and sensors connect to also has to be cost efficient, and it is imperative that the data transmitted by smart, connected things can be delivered securely to mitigate any risks to the city and its citizens. Sigfox has security embedded at all layers of the solution. Data is encrypted from the chipset and device layer, the data in motion layer and the data storage and data at rest layers as well. In addition to this, long range base stations, cloud based operating and management systems,  and a broad range of device and chipset manufacturers and partners collectively contribute to low cost connectivity and end to end solutions and propositions to market.

International device roaming on the global Sigfox network is also addressed through roaming and clearing agreements between international Sigfox networks operators, with no additional costs to the end-user. This is a compelling proposition for asset tracking, supply chain, transport and logistics focussed IoT applications and services. Cities are also enabled to share this data across platforms, since the data protocols are non-proprietary, thus supporting the innovation and development of value-added applications and services for  analytical and contextual driven city management.

Final word

If South Africa wants to keep its position as the gateway to Africa, our cities, the services it provides and the lifestyle it creates for citizens must be nothing less than the global standard that is being set by leading cities around the world. Considering the predicted growth of the continent, it is easy to see why developing smart cities in South Africa now is not only a necessity but also a smart investment in the country’s future. For more information on SqwidNet, or IoT please visit http://www.sqwidnet.com

Featured

Money talks and electronic gaming evolves

Computer gaming has evolved dramatically in the last two years, as it follows the money, writes ARTHUR GOLDSTUCK in the second of a two-part series.

Published

on

The clue that gaming has become big business in South Africa was delivered by a non-gaming brand. When Comic Con, an American popular culture convention that has become a mecca for comics enthusiasts, was hosted in South Arica for the first time last month, it used gaming as the major drawcard. More than 45 000 people attended.

The event and its attendance was expected to be a major dampener for the annual rAge gaming expo, which took place just weeks later. Instead, rAge saw only a marginal fall in visitor numbers. No less than 34 000 people descended on the Ticketpro Dome for the chaos of cosplay, LAN gaming, virtual reality, board gaming and new video games. 

It proved not only that there was room for more than one major gaming event, but also that a massive market exists for the sector in South Africa. And with a large market, one also found numerous gaming niches that either emerged afresh or will keep going over the years. One of these, LAN (for Local Area Network) gaming, which sees hordes of players camping out at the venue for three days to play each other on elaborate computer rigs, was back as strong as ever at rAge.

MWeb provided an 8Gbps line to the expo, to connect all these gamers, and recorded 120TB in downloads and 15Tb in uploads – a total that would have used up the entire country’s bandwidth a few years ago.

“LANs are supposed to be a thing of the past, yet we buck the trend each year,” says Michael James, senior project manager and owner of rAge. “It is more of a spectacle than a simple LAN, so I can understand.”

New phenomena, often associated with the flavour of the moment, also emerge every year.

“Fortnite is a good example this year of how we evolve,” says James. “It’s a crazy huge phenomenon and nobody was servicing the demand from a tournament point of view. So rAge and Xbox created a casual LAN tournament that anyone could enter and win a prize. I think the top 10 people got something each round.”

Read on to see how esports is starting to make an impact in gaming.

Previous Page1 of 3

Continue Reading

Featured

Blockchain unpacked

Blockchain is generally associated with Bitcoin and other cryptocurrencies, but these are just the tip of the iceberg, says ESET Southern Africa.

Published

on

This technology was originally conceived in 1991, when Stuart Haber and W. Scott Stornetta described their first work on a chain of cryptographically secured blocks, but only gained notoriety in 2008, when it became popular with the arrival of Bitcoin. It is currently gaining demand in other commercial applications and its annual growth is expected to reach 51% by 2022 in numerous markets, such as those of financial institutions and the Internet of Things (IoT), according to MarketWatch.

What is blockchain?

A blockchain is a unique, consensual record that is distributed over multiple network nodes. In the case of cryptocurrencies, think of it as the accounting ledger where each transaction is recorded.

A blockchain transaction is complex and can be difficult to understand if you delve into the inner details of how it works, but the basic idea is simple to follow.

Each block stores:

–           A number of valid records or transactions.
–           Information referring to that block.
–           A link to the previous block and next block through the hash of each block—a unique code that can be thought of as the block’s fingerprint.

Accordingly, each block has a specific and immovable place within the chain, since each block contains information from the hash of the previous block. The entire chain is stored in each network node that makes up the blockchain, so an exact copy of the chain is stored in all network participants.

As new records are created, they are first verified and validated by the network nodes and then added to a new block that is linked to the chain.

How is blockchain so secure?

Being a distributed technology in which each network node stores an exact copy of the chain, the availability of the information is guaranteed at all times. So if an attacker wanted to cause a denial-of-service attack, they would have to annul all network nodes since it only takes one node to be operative for the information to be available.

Besides that, since each record is consensual, and all nodes contain the same information, it is almost impossible to alter it, ensuring its integrity. If an attacker wanted to modify the information in a blockchain, they would have to modify the entire chain in at least 51% of the nodes.

In blockchain, data is distributed across all network nodes. With no central node, all participate equally, storing, and validating all information. It is a very powerful tool for transmitting and storing information in a reliable way; a decentralised model in which the information belongs to us, since we do not need a company to provide the service.

What else can blockchain be used for?

Essentially, blockchain can be used to store any type of information that must be kept intact and remain available in a secure, decentralised and cheaper way than through intermediaries. Moreover, since the information stored is encrypted, its confidentiality can be guaranteed, as only those who have the encryption key can access it.

Use of blockchain in healthcare

Health records could be consolidated and stored in blockchain, for instance. This would mean that the medical history of each patient would be safe and, at the same time, available to each doctor authorised, regardless of the health centre where the patient was treated. Even the pharmaceutical industry could use this technology to verify medicines and prevent counterfeiting.

Use of blockchain for documents

Blockchain would also be very useful for managing digital assets and documentation. Up to now, the problem with digital is that everything is easy to copy, but Blockchain allows you to record purchases, deeds, documents, or any other type of online asset without them being falsified.

Other blockchain uses

This technology could also revolutionise the Internet of Things  (IoT) market where the challenge lies in the millions of devices connected to the internet that must be managed by the supplier companies. In a few years’ time, the centralised model won’t be able to support so many devices, not to mention the fact that many of these are not secure enough. With blockchain, devices can communicate through the network directly, safely, and reliably with no need for intermediaries.

Blockchain allows you to verify, validate, track, and store all types of information, from digital certificates, democratic voting systems, logistics and messaging services, to intelligent contracts and, of course, money and financial transactions.

Without doubt, blockchain has turned the immutable and decentralized layer the internet has always dreamed about into a reality. This technology takes reliance out of the equation and replaces it with mathematical fact.

Continue Reading

Trending

Copyright © 2018 World Wide Worx