Recently, there is a new product in the entry-level drone market, which is the Tello launched by Shenzhen Ruishang Technology Co., Ltd., a subsidiary of DJI. Dajiang is the world's largest drone. And unmanned aerial vehicle (UAV) manufacturer. Tello is a highly maneuverable compact four-axis drone that can be easily mastered by most teenagers (size 98 x 92.5 x 41 mm). It weighs only 80 grams, runs for 13 minutes, and has a range of up to 100 meters. Tello has two main goals of entertainment and education. To achieve this goal, the smartphone-based control mode is for every user (including young people). Provides an interesting user interface to interact with drones. An easy-to-program visual layout meets educational goals, allowing users to write the code they want using the comprehensive software development kit (SDK) included in the package. What makes Tello really different from other drones is its image processing capabilities - Marvell's wireless technology plays a key role.
Tello's original drone design requires the product to transmit 720p MP4 format live video to the user's smartphone or tablet in real time using its 5 megapixel image sensor even when driving at maximum speed of 8 m/s. This requires extensive interoperability testing with a wide range of smartphones and tablets. Due to its small size, battery life is a key element, and based on this, ultra-low power Wi-Fi is essential. The basis for the requirements is: A strong wireless connection is required to ensure that the drone maintains signal transmission at all times. Finally, as always, superior Wi-Fi technology is required with limited material costs.
After a preliminary discussion, the company and the Marvell technical team concluded that the Marvell 1x1 11n single-band Wi-Fi system single-chip (SoC) provides the perfect match with the Wi-Fi requirements of the Tello drone project. Widely adopted in the market, and has been widely adopted by various programs, including IP cameras, mobile routers, IoT gateways, etc. Tello finally chose this chipset because Marvell products have high reliability while transmitting high-definition video over the air. It offers ultra-low-range RF performance while providing ultra-low-power operation, and its price is extremely competitive.
Marvell's 1x1 11n single-band Wi-Fi SoC is a highly integrated single-band (2.4GHz) IC that provides IEEE 802.11b/g/n operation in a single spatial stream configuration. It integrates a power amplifier (PA). Low Noise Amplifier (LNA) and Transmit/Receive Switching. Quality of Service (QoS) is guaranteed by 802.11e standard implementation. Wi-Fi SoC is compliant with the 802.11i security protocol and has a built-in Wired Equivalent Privacy (WEP) algorithm for transmission Data is 128-bit encrypted to protect data from third-party interception. Marvell's powerful Wi-Fi software supports all of these hardware features, including small, full-featured Wi-Fi firmware that matches hardware-level features The development of specific features such as infrastructure mode operations is designed to implement the functions required by Tello.
Marvell's industry-leading Wi-Fi technology brings an exciting user experience to Tello, and such a sophisticated design used to be found in expensive professional-grade devices. Introducing this professional quality experience to entry-level unmanned In the machine, it means overcoming obstacles such as power, performance and cost. As the Wi-Fi industry upgrades to the 802.11ax era, Marvell believes that it will be the first to introduce products that support leading technologies in the market, such as uplink OFDMA.