Small data can be described as a building block for the IoT and the volume of data that the billions of devices lying at the edge of the Internet of Things will need a strategy for processing and analysing, writes RESHAAD SHA, CEO at SqwidNet.
The volume of data that the billions of things lying at the edge of the Internet of Things (IoT) will generate needs a comprehensive strategy for protocol mediation, processing, analysing, storing, securing, applying, and even sharing data to deliver value-creating and scalable use cases to industries and consumers. But, while trying to figure out how to manage “Big Data”, it is easy to forget that, when it comes to the IoT, it is actually the little things that matter. With the objective of maximising energy efficiency, many sensors are configured to only send small packets of data which, for convenience sake, can be called small data.
Small data is, for example, the temperature inside the storage area of a truck carrying perishable goods, sent out once every 10 minutes. It is the data relayed from a sensor placed above a parking bay that notes when the space is taken. Or the tiny packet of data relayed once a day from a water level sensor inside a reservoir, logging whether it is submerged or not. Small data gives context and enables us to identify patterns in behaviour, enabling machine learning, and driving data analytics, opening up a big world of opportunity.
The need for small data
The amount of data sent out in each case is minuscule – often no more than just a few bytes in size. And it needs to be, since larger data packets can place a heavy payload burden on the base station of a wireless IoT network that needs to connect and service millions of things. Hence, while it is easy to say “don’t sweat the small stuff”, for the IoT, it is the small stuff that truly matters. This is because all these small data packets eventually make up larger data sets from which to draw certain information. Take for example the parking-bay-sensor data mentioned earlier. Using the collected data from a parking lot over a period of months, the shopping centre management can trace a pattern of busy periods and quiet ones. This enables them to notify tenants when to run specials to attract more customers.
Even more important in future
As IoT usability expands, the reliance on small data packets that deliver more points of context become even more important. In certain use cases, a whole cascade of events will be triggered as soon as one sensor sends through specific data. One case in point is a patient being monitored at home – something we will see a lot more of as telehealth becomes more commonplace.
When accelerometer data from a wearable on an aged patient records an abrupt stop, it might indicate an injurious fall. This will trigger an automatic notification to the next of kin and the patient’s doctor. If no further movement from the patient is detected for a certain time, emergency services will be alerted to dispatch an ambulance. Furthermore, the patient’s smart home security system could also send out an access code once the ambulance crew arrives. This complete range of events is subject to the reliability of a small data sensor and a trustworthy network.
A network to depend on
To ensure the dependability of small data emanating from IoT sensors, SqwidNet, a subsidiary of DFA, is rolling out the SIGFOX IoT network in South Africa. The SqwidNet network is purpose built for listening to and delivering small packets of contextual data from these billions of connected things. Importantly, the SIGFOX standard ensures low-power usage, which is key to maximising sensors’ battery life.
Since our launch in November 2016, we have successfully deployed the network across all of South Africa’s eight major metros and we currently cover over 47% of the population. The network will exceed 85% of the population by the end of the year.
While the growth of IoT is a given, it is important to ensure that the foundations being laid now are stable and futureproof. To this end, securing small data’s place in the setup remains crucial. It its one small step for data; one giant leap for IoT.
Opera launches built-in VPN on Android browser
Opera has released a new version of its mobile browser, Opera for Android 51, which features a built-in VPN (virtual private network) service.
A VPN allows users to create a secure connection to a public network, and is particularly useful if users are unsure of the security levels of the public networks that they use often.
The new VPN in Opera for Android 51 is free, unlimited and easy to use. When enabled, it gives users greater control of their online privacy and improves online security, especially when connecting to public Wi-Fi hotspots such as coffee shops, airports and hotels. The VPN will encrypt Internet traffic into and out of their mobile devices, which reduces the risk of malicious third parties collecting sensitive information.
“There are already more than 650 million people using VPN services globally. With Opera, any Android user can now enjoy a free and no-log service that enhances online privacy and improves security,” said Peter Wallman, SVP Opera Browser for Android.
When users enable the VPN included in Opera for Android 51, they create a private and encrypted connection between their mobile device and a remote VPN server, using strong 256-bit encryption algorithms. When enabled, the VPN hides the user’s physical location, making it difficult to track their activities on the internet.
The browser VPN service is also a no-log service, which means that the VPN servers do not log and retain any activity data, all to protect users privacy.
“Users are exposed to so many security risks when they connect to public Wi-Fi hotspots without a VPN,” said Wallman. “Enabling Opera VPN means that users makes it difficult for third parties to steal information, and users can avoid being tracked. Users no longer need to question if or how they can protect their personal information in these situations.”
According to a report by the Global World Index in 2018, the use of VPNs on mobile devices is rising. More than 42 percent of VPN users on mobile devices use VPN on a daily basis, and 35 percent of VPN users on computers use VPN daily.
The report also shows that South African VPN users said that their main reason for using a VPN service is to remain anonymous while they are online.
“Young people in particular are concerned about their online privacy as they increasingly live their lives online,” said Wallman. “Opera for Android 51 makes it easy to benefit from the security and anonymity of VPN , especially for those may not be aware of how to set these up.”
Setting up the Opera VPN is simple. Users just tap on the browser settings, go to VPN and enable the feature according to their preference. They can also select the region of their choice.
The built-in VPN is free, which means that users don’t need to download additional apps on their smartphones or pay additional fees as they would for other private VPN services. With no sign-in process, users don’t need to log in every time they want to use it.
Opera for Android is available for download in Google Play. The rollout of the new version of Opera for Android 51 will be done gradually per region.
Future of the car is here
Three new cars, with vastly different price-tags, reveal the arrival of the future of wheels, writes ARTHUR GOLDSTUCK
Just a few months ago, it was easy to argue that the car of the future was still a long way off, at least in South Africa. But a series of recent car launches have brought the high-tech vehicle to the fore in startling ways.
The Jaguar i-Pace electric vehicle (EV), BMW 330i and the Datsun Go have little in common, aside from representing an almost complete spectrum of car prices on the local market. Their tags start, respectively, at R1.7-million, R650 000 and R150 000.
Such a widely disparate trio of vehicles do not exactly come together to point to the future. Rather, they represent different futures for different segments of the market. But they also reveal what we can expect to become standard in most vehicles produced in the 2020s.
The i-Pace may be out of reach of most South Africans, but it ushers in two advances that will resonate throughout the EV market as it welcomes new and more affordable cars. It is the first electric vehicle in South Africa to beat the bugbear of range anxiety.
Unlike the pioneering “old” Nissan Leaf, which had a range of up to about 150km, and did not lend itself to long distance travel, the i-Pace has a 470km range, bringing it within shouting distance of fuel-powered vehicles. A trip from Johannesburg to Durban, for example, would need just one recharge along the way.
And that brings in the other major advance: the i-Pace is the first EV launched in South Africa together with a rapid public charging network on major routes. It also comes with a home charging kit, which means the end of filling up at petrol stations.
The Jaguar i-Pace dispels one further myth about EVs: that they don’t have much power under the hood. A test drive around Gauteng revealed not only a gutsy engine, but acceleration on a par with anything in its class, and enough horsepower to enhance the safety of almost any overtaking situation.
Specs for the Jaguar i-Pace include:
- All-wheel drive
- Twin motors with a combined 294kW and 696Nm
- 0-100km/h in 4.8s
- 90kWh Lithium-ion battery, delivering up to 470km range
- Eight-year/160 000km battery warranty
- Two-year/34 000km service intervals
Click here to read about BMW’s self-driving technology, and how Datsun makes smart technology affordable.