On June 14th, at the "2018 China Optical Network Seminar" held recently, the Institute of Technology and Standards of China Information and Communication Research Institute stood tall and introduced the state of broadband development in China and the hot spots and trends in broadband access development.
According to him, China's fixed broadband has entered the era of fiber optics, and mobile broadband 4G has covered urban and rural areas. As of Q1 2018, FTTH coverage reached 1.15 billion households, more than 12 times more than in 2012; fiber ports accounted for more than 85% of all broadband access ports; fiber broadband users accounted for 85% of broadband users. .3%, leading the world, laid the foundation for the subsequent broadband development.
As of Q1 in 2018, the number of 4G base stations in China reached 3.393 million, and the scale of 4G networks ranked first in the world, covering cities and villages in depth, and 4G users accounted for 72.2% of mobile phone users.
Li said that at present, China's broadband development and mobile broadband user penetration rate is close to that of developed countries, but there is still a distance from the global leading level. According to the "China Broadband Popularization Report" issued by the Broadband Development Alliance, China's mobile broadband (3G and 4G) users reached 119.984 million in 2018, and the mobile broadband user penetration rate reached 86.3%, which is close to developed countries in advance. The average level, but there is still a gap with the global leading level.
As of Q1 2018, China Telecom, China Mobile, China Unicom users reached 159 million, 124 million and 78.17 million, respectively, China Telecom accounted for 40%, China Mobile accounted for 31%; other operating companies It is 36.8 million households, accounting for about 9%. For mobile broadband users (3G and 4G), as of 2018, China Telecom, China Mobile and China Unicom users reached 221 million, 764 million and 215 million respectively, and China Mobile accounted for 64%.
Since the implementation of the speed reduction fee, the fixed broadband download rate has increased rapidly. At present, the average available download rate of fixed broadband in China is 20.15 Mbit/s, an increase of nearly 3.9 times, an increase of 54.9% over the same period of last year. Among them, China Telecom has the highest download rate, with an average of 20.51 Mbit/s, but the download rates of broadband available to the three major telecommunications companies are not much different.
According to Mr. Li, the current hot spot for broadband access development is to standardize the industry standards for the “Public Fixed Broadband Access Service Mountain Downlink Rate Configuration Requirementsâ€. In this regard, he put forward three suggestions. First, when the operator provides fixed broadband access services to the public, the service contract or agreement with the user should clearly specify the downlink and uplink subscription rates of the fixed broadband access service. . Second, the downlink configuration rate of the access service should be configured according to the contracted downlink rate specified in the broadband service contract signed with the user. Third, the contracted uplink access rate and the contracted downlink access rate are at least 1:5d.
Bitcoin mining equipment is mainly highly specialized ASIC mill , The maximum computing power of a single miner is 110T/s( Ant S19Pro mill ), The scale of computing power of the whole network is 120EH/s above . Ethereum's mining equipment is mainly graphics card mining machine , Professional ASIC Mining machines are very few , On the one hand, it is because of the of Ethereum mining algorithm [ resist ASIC sex " Improved R & D efficiency ASIC The threshold of the miner , So how much do you know about the mainstream Ethereum mining machine ?
Ethereum mining algorithm has higher requirements for memory , The purpose of this design limits ASIC The use of chips in Ethereum mining . From the results , Most Ethereum mining machines are graphics card machines , This reflects the application of Ethereum mining algorithm ASIC Success on . From the absolute value of computational power scale , The computing power of Ethereum is about 200TH/s, The computing power of bitcoin is about 120EH/s, The latter is close to the former 60 ten thousandfold .
ASIC Mining machines have high computing power , Large power consumption , Like the latest ant S19Pro mill , Rated power consumption is 3250W, Need to consume... Every day 78 Degree electricity , According to the current currency price and 0.23 The electricity price in wet season is RMB , The proportion of electricity charge is 30.68%. Other older bitcoins ASIC mill , Like ants T17 series , The proportion of electricity charges generally exceeds 50%. by comparison , The power consumption of the graphics card miner is low , The proportion of electricity is also low . such as 5600XT8 Graphics card miner of card .
Ant S19-95T It adopts aluminum alloy profile electromechanical integrated design , Parallel four fan structure . According to the measured data , In line with and better than the official data .S19 The series is provided by TSMC 7nm chip , A new generation of customized chips with perfect whole machine architecture and high conversion rate APW12 Power Supply , Reduce power loss during conversion , Use more energy-saving , Greatly shorten the return cycle of the miner . In addition, the newly upgraded mining machine operation interface is also more humanized , Real time computing power . The average computing power and the operation of each chip are clear at a glance .
Shenma mining machine M30S-86T/88T/90T, Bit micro 2020 Launched in 2013 M30S Series of new mining machines , Announced that it would M30S The series is expanded to three 3X product . stay 3X In the new standard , Bit micro promises a one-year warranty for its series of products . This series of mining machines are provided by Samsung 8nm chip , Among them, god horse M30S series , The power consumption is 38J/T, Provide higher computing power , Lower power consumption and high stability.
Ethereum Mining Machine:Jasminer X4,Bitmain Antminer E9 (2.4Gh),iPollo V1,Jasminer X4-1U,iPollo V1 Classic,
Jasminer X4-C 1U,iPollo V1 Mini SE Plus
Ethereum Mining Machine,ETHW Miner,innosilicon a10 pro,E9 Antminer,Innosilicon A11
Shenzhen YLHM Technology Co., Ltd. , https://www.sggminer.com