According to related reports, Dajiang's innovative new drone Phantom 4, a total of 28 CPUs, 16 of which are close to 57% are Chinese-made CPUs, and 25, about 90% are ARM series CPUs, due to the large number of ARM CPUs It is used for consumer electronic products such as smart phones, and is modularized for customization, and is convenient for use in flight control or photographic lens control. From the perspective of the number of Chinese cores, this reflects more or less the results of China's investment in CPU. Even if the core technology is from foreign manufacturers such as ARM, it will modify the design and production according to the needs, and gradually accumulate technical experience, plus China. Consumer electronics products are gradually expanding their use of domestic production CPUs, and their future development potential is worthy of continuous observation. 1. In recent years, national policies have helped, and the development of the domestic integrated circuit industry has advanced by leaps and bounds. Especially for the ARM core CPU in the consumer field, local companies have accumulated certain experience, and many can design and produce independently. More than half of the Chinese core in the UAV drone is also a concrete manifestation of this achievement. 2. Local companies also need to work hard on CPU integration applications. After dismantling DJI's new drone Phantom 4, 16 of them, 57% of the total of 28 CPUs, are self-produced CPUs in China. However, many of the domestic CPUs do not play their full computing power, which is a waste. If we can effectively integrate these CPUs technically, we can avoid this waste by using fewer chips in the future. 3. It is undeniable that the domestic integrated circuit industry has entered a period of rapid development, and the self-sufficiency rate is increasing year by year, but it is important to remember that it cannot be overestimated. At present, some key components with high technical content such as high-performance CPU and memory need to rely entirely on foreign suppliers. . Therefore, we have a long and arduous road to catch up with the advanced technology of foreign integrated circuits.
Aviation headphones are used in airplanes, cars, subways, etc., to facilitate passengers to listen to audio and watch videos to enjoy a pleasant journey.
The aviation earphones are mostly disposable, so the structure is extremely simple, the shape is relatively ordinary, the materials are small, and the annual usage is very large. The number of inquiry can reach several million or even tens of millions, so the cost is very cheap. earphones can cost as little as 10-15 cents. Therefore, they are disposed of as garbage after used, and passengers could take it away for personal use.
Styles can be divided into on ear headphones and in ear earphones.
Functional difference: power, impedance, and sensitivity etc. are also different. Airplane Headphone is mainly customized according to the equipment, place and user used. For example, 1 customer might require 300 ohms impedances , and other customers may need 32 ohms. For adults, the sensitivity may reach 100DB or more.To children, the sensitivity may be around 85-90 DB.
In addition, aviation headphones are not all disposable ones. Some first-class cabins need to be equipped with headphones with good noise reduction, sound quality and functions. So the price will be much more expensive.
Airline Headphones,Airline Earphones,Airplane Headphones,Airline Noise Cancelling Headphones Shenzhen Linx Technology Co., Ltd. , https://www.linxheadphone.com
October 18, 2024