According to recent data, there are 52 LoRa networks operational across more than 100 countries globally. In China, the adoption of the LoRaWAN protocol is primarily focused on vertical sectors such as smart cities, smart buildings/homes, agriculture, and industry. Currently, three public LoRa networks have been launched in the country. These include the Guizhou Zhongan Cloud Network, which covers the entire province of Guizhou; the Guangzhou Chinese Academy of Sciences Computer Network Information Center network, serving the Nansha District of Guangzhou (covering 803 square kilometers); and the Shaanxi Broadcasting and Television Network, operating in the Beilin District of Xi'an. Additionally, China has 16 private or test LoRaWAN networks, known as "10 GWs" networks, with a total of 1,732 gateways installed. These networks offer coverage comparable to NB-IoT.
At the beginning of the year, Ace announced a cooperation agreement with Huawei for the use of NB-IoT technology in shared bicycle applications. Later, at the ninth meeting of the LoRa Alliance in Suzhou, Semtech revealed that OFO is developing LoRa devices and radio frequency technology to integrate into its bicycles, enhancing connectivity in remote areas and dense urban environments by complementing licensed spectrum options.
A recent image circulated showing that LoRa claims it has no intention of competing with NB-IoT in the IoT market and aims to be the dominant player in 2018. This was the first major conference held by the LoRa Alliance in China. Geoff Mulligan, Chairman of the LoRa Alliance, emphasized that China plays a crucial role in the global electronics industry and represents a massive potential market for IoT applications. The event provided an opportunity for members to meet, showcase their work, and promote their business interests on a global scale.
LoRa technology has now developed a complete IoT ecosystem, from chip-level solutions to end-to-end applications. The LoRa Alliance has over 500 members, including 40 Chinese companies like ZTE. As a leading domestic player, ZTE established the China LoRa Application Alliance (CLAA) in early 2016, followed by the creation of ZTE Carat, a subsidiary dedicated to LoRa technology.
During the conference, Liu Jianye, Vice President of ZTE and CEO of ZTE Carat, highlighted that LoRaWAN is ideal for low-cost, large-scale IoT deployments. He stated that both capital expenditure (CAPEX) and operational expenditure (OPEX) costs for LoRa are just 1% of those for NB-IoT. Moreover, LoRa devices consume only 1% of the power used by NB-IoT devices. With over 850 CLAA members, more than 100 application types, and over 40 commercial implementations, the ecosystem continues to expand rapidly.
Beyond cost efficiency, LoRa offers several advantages, including wide coverage (up to 30 miles between sensors and gateways), long battery life (up to 10 years), interoperability through the open LoRaWAN protocol, and high capacity (supporting millions of messages per day via a single base station). These features make it well-suited for diverse IoT applications.
In the LPWA space, licensed spectrum technologies like NB-IoT are expected to dominate in the next 1-2 years. However, Dr. Shane Rooney of GSMA IoT Project noted that the choice between licensed and unlicensed spectrum often depends on user preferences rather than technical superiority. Geoff Mulligan reiterated that LoRa and NB-IoT are not competitors but serve different use cases. Operators may prefer NB-IoT for its integration with mobile networks, while users seeking self-built networks or ISM band usage may find LoRa more appealing.
LoRa has successfully deployed in multiple markets, focusing on eight key verticals: industrial control, metering, environmental monitoring, urban infrastructure, agriculture, supply chain and logistics, healthcare, and residential buildings.
Looking ahead, Geoff Mulligan expressed confidence that 2018 will mark a breakthrough for IoT. By the end of 2017, ZTE Carat plans to expand LoRa coverage to 10 additional cities, bringing the total number of gateways in China to over 13,982 and LoRa nodes to 153,000. To support this growth, the LoRa Alliance also released updated technical specifications, including features like backend node roaming and separation, enabling global IoT device connectivity and seamless transitions between networks. These updates will support new services like cargo tracking and large-scale deployments.
In an interview, Geoff Mulligan emphasized that LoRa’s goal is not to dominate the world, but to apply the right technology in the right context. The alliance hopes to discover the next “Zuckerberg†and help build the next big success story in the IoT space.
DVB-T/DAB-T1/DAB-T2 Antenna
DVB-T/DAB-T1/DAB-T2 Antennas are specialized devices designed for receiving digital television and radio broadcasts transmitted over terrestrial networks. Each of these standards represents a different approach to digital broadcasting, and the antennas used for them are tailored to optimize reception of the respective signals. While the exact terminology for DAB antennas may vary, the core principle remains the same: to provide efficient and reliable reception of digital radio signals.Here's a detailed introduction to each of these antennas:
DVB-T Antenna
Definition and Purpose:
DVB-T (Digital Video Broadcasting - Terrestrial) is the European standard for terrestrial digital television broadcasting. It allows the transmission of high-quality audio, video, and data services to television sets and other devices via radio waves.
Key Features:
Compatibility: DVB-T antennas are specifically designed to receive signals broadcast in accordance with the DVB-T standard.
Performance: They offer efficient reception of digital TV signals over long distances and in various weather conditions.
Modulation: DVB-T utilizes COFDM (Coded Orthogonal Frequency Division Multiplexing) modulation, which is known for its resilience to multipath interference and Doppler effects.
Applications:
Commonly used in Europe and some other regions where DVB-T is the adopted standard for terrestrial digital TV broadcasting.
Suitable for both indoor and outdoor installations, depending on the model and design.
DAB-T1/DAB-T2 Antennas
It's important to note that while DVB-T focuses on digital television broadcasting, DAB (Digital Audio Broadcasting) is the standard for digital radio broadcasting. However, the specific terms "DAB-T1" and "DAB-T2" are not widely recognized as distinct standards in the context of antennas. Instead, DAB antennas are designed to receive DAB signals, which can be further categorized into DAB+ or DAB-T (where "T" might imply terrestrial, but is not a universally accepted suffix).
General Characteristics of DAB Antennas:
Compatibility: Designed to receive digital radio signals broadcast in accordance with the DAB standard.
Performance: Offer clear and stable reception of digital radio broadcasts, even in urban environments with multiple radio stations and potential signal interference.
Multi-Band Support: Some advanced DAB antennas may support multiple bands, including those used for DAB+ and FM radio, providing greater flexibility and convenience.
Applications:
Widely used in regions where DAB is the adopted standard for digital radio broadcasting.
Available in various designs, including indoor and outdoor models, to suit different installation needs and preferences.
DVB Antenna,DVB-T1 Antenna,DVB T2 Antenna,DVB T2 Antenna Outdoor
Yetnorson Antenna Co., Ltd. , https://www.yetnorson.com