Qualcomm hosted the 4G/5G Summit in Hong Kong in mid-October this year and shared the latest developments in 5G and 4G. The company demonstrated its latest technology and invited OEMs, network equipment providers and mobile operators to discuss its 5G and 4G development plans. The main tone of such a conference is often to start with ambitious and exciting numbers, and the number given by Qualcomm is that 5G will have a $12 trillion impact on goods and services in the global economy before 2035. The company pointed out that 5G's major opportunities are in mobile broadband, connected cars, wearable devices, the Internet of Things, and smart homes. In addition to the new opportunities that 5G will bring to the industry, Qualcomm has also put forward some very practical things. For example, the company fully realized that the first area of ​​5G applications is mobile broadband. After all, the mobile data used by 4.8 billion 3G and 4G connections worldwide is the source of revenue for most mobile operators. In view of this, better, faster and more reliable mobile broadband will be an important agenda for 5G. Qualcomm supports this by introducing its first 5GNR smartphone supporting millimeter wave (28GHz band). Qualcomm also announced that it has conducted 5GNR trials with partners such as AT&T, Telstra, China Mobile, NTT DoCoMo, SK Telecom, Sprint, Vodafone, Ericsson, Nokia and ZTE, and expects to launch the first commercial in 2019. . The company also conducted coverage simulations in 10 cities around the world, demonstrating that it has become possible to use 28 GHz to use existing sites to achieve large-scale outdoor coverage. For example, in San Francisco, 28GHz can achieve 65% of the current outdoor downlink coverage. In Sao Paulo, this figure can reach 80%. Ari Lopes, chief analyst of Ovum Latin America team, said that in summary, Qualcomm’s 4G/5G summit shows that the building blocks of the 5G standard are being closely integrated. Industry insiders believe that the spectrum flexibility, bandwidth, and low latency provided by 5G will be the wireless industry. Open up new markets. Nevertheless, more work is needed to understand various aspects of new technologies, such as 4G/5G coexistence and high-band signal propagation. For this reason, the test announced by Qualcomm will be crucial. Finally, perhaps the most important challenge is to understand the true size of the 5G opportunity. The questions about which use cases will really drive demand for new standards or how mobile operators position themselves in the value chain of these industries will be the focus of 5G strategic planners in the coming years.
An electric slip ring is a rotary electrical connector. It allows uninterrupted power or signal transfer between two stationary points. It is also known as an electric Rotary Joint, power swivel, or electrical rotary joint. Electric slip rings are usually composed of a metal ring with several brush contacts on the inner circumference. And there are one or more pairs of contacts for power or signals on the outer circumference. The metal ring can be rigid or flexible, depending on the application.
An electric slip ring is an electromechanical device that allows the transmission of electrical power and signals from a stationary to a rotating structure. It consists of an electrically conductive rotating disc or ring, with a number of electrical contacts (or "slots") on its surface. The contacts are connected to external circuits, enabling the passage of power and/or data from the stationary to the rotating structure. Slip rings are also used in generators, where they allow the passage of current from the rotor to the stator.
A flat disc electrical slip ring is one kind of electric slip ring, it has many advantages: simple construction, small size, low cost, easy installation, and maintenance. It is widely used in various fields such as machine tools, textile machinery, printing machinery, packaging machinery, medical equipment, and aerospace equipment.
A 360-degree rotating Conductive Slip Ring is also called a hollow shaft slip ring or hollow conduct. It has an opening in the center that allows a shaft to pass through, making it ideal for rotating applications. Slip rings are often used in medical equipment, robotics, and manufacturing assemblies where rotation is required. This type of slip ring can handle large currents and voltages while providing a continuous electrical connection.
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August 15, 2023