Bluetooth is a personal wireless communication technology commonly used in the connections of PCs, smartphones, and personal mobile devices for information transfer and exchange. The Bluetooth SIG introduced the newest Bluetooth 5.0 in 2016, boasting an effective transmission distance of 300 meters and speed of 2Mbps.
Ever since Bluetooth 4.0’s adoption of the Low Energy Technology, products that support Bluetooth have gradually increased. In recent years, the application of Bluetooth has expanded from general computer-related merchandise to medical and home care, vehicle-mounted devices, and IoT smart home appliances, etc.
The under-capacity, over-crowdedness and poor efficiency of the 2.4GHz band have long been common knowledge. The number of channels on the 5GHz is greater than that one the 2.4GHz. However, a large portion of these channels is DFS channels. The advantage of the 5GHz is reduced by more than half if the DFS channels are not in use.
What exactly is DFS? Why is it so influential?
Nowadays, the Wi-Fi network plays an indispensable role in our lives. Consumer electronics products frequently used by family members, including smartphones, tablets, and the application of IoT such as smart TVs and household appliances, all have to link to Wi-Fi network to enjoy online functions and cloud services. To ensure all household IoT devices can be connected to Wi-Fi network, full coverage Wi-Fi was born.
Wi-Fi has become an indispensable part of our lives. Before Wi-Fi was invented, wireless connections were conducted via infrared technologies. Users had to carry their devices with them and sit next to each other so that the data could be transferred wirelessly. With Wi-Fi, users can now transfer data wirelessly even if they are a few meters or even a hundred meters away from each other. This “wireless” experience has definitely brought convenience and fun to users worldwide.
The Evolution of Wi-Fi
The application of Wi-Fi was first established by the IEEE, which ratified the CSIRO invented Wi-Fi—802.11 as the industry’s standard Wi-Fi technology in 1999. Since then, all Wi-Fi technologies are based on the 802.11 standards, and the Wi-Fi Alliance has become the key player in promoting and solving issues related to Wi-Fi connection and interoperability. Thanks to the early established standardization, the Wi-Fi technology has advanced significantly in just 20 years and made a huge impact on our lives.
As we mentioned in last article: Smart Enough? The Three Most Frequent Issues in Smart Assistant Applications, smart assistant can be vocally activated to provide entertainment support, help search information, and control other smart devices in houses, offices, or hotel rooms. Generally, a smart assistant, to complete these tasks, has to work with other devices, such as going online with wireless access points (AP) or synchronizing with smart phones via Bluetooth. However, we found several interoperability issues after paring up six smart assistants with 20 APs and 20 smart phones. In this article, we argue that, even for the products that have been certified by Wi-Fi and Bluetooth, interoperability issues can occur during the complex matches among the various products in the market. Read more →
Voice recognition has become the prevalent technology for remote authentication. To fulfill people’s imaginations for “convenience,” tech giants such as Amazon, Google, and Apple started to develop their own voice recognition systems and have invented and brought “Smart Assistant” to the market.
Generally, a smart assistant can be vocally activated to provide entertainment support (e.g. music and radio), help search information (e.g. wiki, translation, and recipe), and control other smart devices in houses, offices, or hotel rooms. These clever helpers later become the focus for those manufacturers who attempt to step further in the IoT era. Read more →
According to research firm IHS Markit, the number of IoT devices will increase on average 12% each year from 27 billion in 2017 to 125 billion in 2030. As more devices go on the Net, the limited wireless channels have become more congested that brings plenty of connectivity issues to the real-world and further deteriorates user’s experiences.
Unlike one-to-one communication of traditional devices, communication of IoT devices has become one-to-many. The performance of IoT devices should involve in three factors: product capability, network connectivity and user environment/ behavior. Vendors thus need a new methodology to verify products before launching to the market. This article will discuss a new methodology of IoT device validation “Heat Map Analysis”, which is used to perceive real-world factors and further discover and resolve common wireless connectivity issues.
The idea of IoT (Internet of Things) and the innovation of technology have created a new lifestyle to people. Today, individuals, when stepping into a house, are able to turn on light, air conditioner, or television by simply speaking a word. However, the larger scale applications of smart technology also created more complex issues.
Significant developments in information and communications technology affect activities of industries, businesses and our social lives bringing about changes to our immediate living and work environment through improved and seamless connectivity.
Allion works closely with customers to provide testing services that identifies interoperability between their IoT devices and other IoT gadgets. In our state of the art IoT facility, with a real home simulation infrastructure, Allion performs repeatable testing for a wide range of IoT products and customer base.
A part of these tests includes emphasis on: network connectivity; proximity test, interference and roaming testing of all your IoT devices to define interoperability, functionality and stability of the tested IoT devices. We help our customers address the many challenges associated with connectivity and incompatibility by leveraging our huge testing expertise in different domains. The next section is meant to introduce ways we render our IoT test services.
It was said that wireless charging would be introducing into Apple next generation while there was also news that Apple Inc. had just joined Wireless Power Consortium (WPC) as its new member. As Apple has always been one of market leaders in the industry, such news coming one after another seems to indicate of the market booming and technology development rising into its high peak for the wireless charging that has been regarded as emerging technology for a period of time.
According to the research of IHS Markit, the worldwide wireless charging- transmitter (Tx) & receiver (Rx) market in 2017 are expected to be totally over 600 million units of shipments and would be driven even over 3 times more to reach 2.8 billion units in 2025. From Chart I, we learned that in this market the surging shipments of devices featured as receivers for wireless charging, such as smartphones and smartwatches, have become the main force of wireless charging market and has further driven the increases of the transmitter market.