Moore force

1.

It is reported that the performance of bm1385 chip is more than twice that of bm1384

The power supply scheme of S7 is similar to that of S5. The S5 + mode of dense chip arrangement is adopted, which makes the arrangement structure more compact. Under the same space, 60 chips are placed in S5 and 162 chips are placed in S7

The price of S7 is 1823 US dollars, equivalent to 11650 RMB yuan, and the delivery time is from September 21 to September 30. At the same time, the official announced the parameters of ant mining machine S7. The chip adopts bm1385, a 28nm fully customized chip independently developed by bitcontinental, with a computing power of 4.86t and a power consumption of 1201w. Ant miner S7 is the best miner with the best power consumption ratio so far, and the power per T is about 250W

official website is not open for sale at the moment. Users of early adopters can place their orders in overseas official website. The delivery address is 17% of the Chinese mainland tax and the purchase price is 13630 yuan. p>

ant mining machine S7 specification parameters:

1. rated calculation force: 4.86 Th / S ± 5%

2. wall power consumption: 1210 watts (bit mainland apw3-1600 watt power supply, 93% AC / DC efficiency, 25 ℃ ambient temperature)

3. power efficiency: 0.25 Joule / GH (wall, 93% AC / DC efficiency, 25 ℃) ° C)

4. rated voltage: 12V ± 5%, which should not be lower than 12.0V

5. number of single power board chips: 162x bm1385

6. overall dimension: 301 mm (L) * 123 mm (W) * 155 mm (H)

7. cooling: 2 × 12038 fan

8. working temperature: 0 ℃ to 40 ℃

9. network connection: Ethernet

< / OL >

for details, please see "ant S7 miner start pre sale"

2.

in terms of price control, the cost of lidar is much higher than that of camera and millimeter wave radar, and Tesla's choice of the route dominated by image sensing technology is also e to cost considerations

the instry believes that there are differences in the decision-making methods of the two routes. The autopilot scheme with camera as the main sensor "pays less attention to sensing and computing", while the autopilot scheme with lidar as the main sensor has obvious characteristics of "paying more attention to sensing and computing"

is simply a camera. Because the perception level of the hardware scheme is low, it needs to rely on the improvement of software algorithm ability and massive data training to make up for it, and the addition of lidar to a certain extent reces the requirement of data processing link to computing power, and also helps to accelerate the commercial landing of L4 grade automatic driving vehicle. p>

Elon Musk has repeatedly publicly expressed his disdain for lidar solutions. Musk believes that human beings can drive safely by collecting information from vision and processing information from brain, which means that automatic driving can also be realized by visual perception and algorithm decision-making

Tesla recently launched the rewritten full self driving Suite (FSD), which shows its technical advantages in visual recognition. However, instry insiders pointed out that FSD can achieve accurate recognition and independent decision-making, which is inseparable from the massive driving data of car owners

Tesla realizes the coverage of high-level automatic driving scene by covering the whole car camera + ultrasonic sensor and a front-end radar, and its maximum support comes from neural network training based on after-sales vehicle data. Through deep learning to cover more working conditions and scenes, the vision algorithm is infinitely close to human perception and judgment

"the reason why they didn't launch this function at the beginning was not because they didn't have the ability or the algorithm was not finished, but more because they didn't have enough data and didn't fully verify the scene. Collecting data through mass proction of vehicle models will also inspire other vehicle manufacturers. " Instry insiders told ID: carcaijing

Tesla's route is not mainstream. Zhao Xin said that the dynamic changes in the instrial chain reflect the necessity of lidar“ There are more lidar manufacturers and more car manufacturers are using lidar, which may be more convincing than discussing the technical route. "

some practitioners believe that in order to achieve automatic driving above L4 level, comprehensive verification of lidar, camera, millimeter wave radar and other sensors is needed

in an interview with the media group, Zhang Lin, President of the domestic intelligent driving company fritec, pointed out that it is difficult to achieve all unmanned driving only by image perception technology and visual algorithm, and it is necessary to integrate lidar algorithm, which also puts forward higher requirements for the algorithm's self-development ability and fusion skills

"most marking technology companies buy radars from international manufacturers and make their own algorithms for fusion, but the radar outputs target level signals, but the higher the degree of automatic driving, the more need for bottom level fusion. Behind the facts and targets you see are clustering and tracking algorithms, but this process will be filtered. Only those who have done the radar algorithm can understand and master how to identify in the position where two targets are superimposed very close to each other. " Zhang Lin said

On the other hand, the more sensors, the better. Although the more sensors are installed, the more effective the vehicle is to detect the surrounding environment, too many sensors will not only increase the cost and cause mutual interference, but also bring challenges to integration and computing power

Liu Xi, an expert on perception fusion of fritec, told ID: carcaijing that rendancy can be achieved through multi-sensor fusion technology, that is, when a single sensor fails, cross validation of other sensor data can be carried out to improve fault tolerance. In addition, in the case of high cost of lidar, multi-sensor fusion can improve the economic benefits of the solution

it is not only the fusion of sensors in the vehicle, but also the data of sensors on the road end will be incorporated into the digital stream, which will become the supplement of automatic driving on the vehicle end

"from vehicle end to road end, from terminal to cloud" 5g-v2x vehicle road collaborative route has been mentioned by more and more automatic driving companies. Waymo, which has always emphasized single car intelligence, has also opened up lanes to study vehicle road collaborative technology solutions

research shows that vehicle road cooperation can solve the problem of insufficient confidence only relying on vehicle sensor perception, or improve vehicle safety by 2-3 times. By adding cameras, radars and other sensors on the road end, it is like adding a pair of "eyes of God" to the car's perception devices, recing dimensions and solving complex working conditions and scenes

under the background of vigorously promoting the new infrastructure, some test roads in Shanghai and xiong'an automatic driving demonstration areas have been equipped with high-definition 8K cameras, lidar, millimeter wave radar, etc

"these technologies help the vehicle to understand the traffic state on the road, such as identifying traffic accidents, occupying which lane, and so on. The information is transmitted back to the cloud and then to the vehicle end, so that the driverless vehicle can foresee and plan the path to avoid in advance." Liu Xi said

Wang Xiaobin pointed out that vehicle road collaboration is equivalent to an "over the horizon sensor" of a car, which provides information beyond the detection range of existing on-board sensors, especially in complex scenes

"from the mainstream point of view, in order to achieve high-level automatic driving, the information at the end of the road is essential. But now, the cost of vehicle road coordination is a limiting factor, which is difficult for a single vehicle enterprise to bear. It needs the government or instry to take the lead in promoting it. " Wang Xiaobin said

our reporter Zhao Cheng also contributed to this article

this article was originally published in the column of "automobile and travel" of Caijing magazine on November 23, 2020

this article comes from the author of auto home, which does not represent the standpoint of auto home

3.

December 5 news: the fourth World Internet Conference is on its last day. According to the agenda of the conference, in addition to the closing ceremony, there will be a summit dialogue among entrepreneurs

this forum invites representatives from leading global Internet companies and instry leaders at home and abroad to discuss how to cultivate new kinetic energy with informatization and promote new development with new kinetic energy on topics such as the impact of the new round of information revolution on the future of the world and the transformation of traditional economy to digital economy

guests participating in the summit dialogue of entrepreneurs include Ma Yun, chairman of Alibaba group, Zhang Lei, CEO of Didi, Wan Lin, President of rookie network, Chris O'Neill, CEO of Evernote, etc. to explore the new economy in the Internet era

Lei Jun, founder and CEO of Xiaomi, is also fond of AI. In his view, integration is the key factor in the development of digital economy. Digital economy is to effectively integrate the Internet technology, methodology and business model accumulated in the past 20 years with the traditional instries, including the breakthroughs made in artificial intelligence technology in the past two or three years. Artificial intelligence is a technological revolution. This technological revolution should give full play to its technological advantages and combine with all walks of life. At the same time, he believes that intelligent speaker procts are the best embodiment of the application of artificial intelligence technology, followed by mobile phone photos and photo albums, in addition to automatic driving and medical diagnosis

Zhang Yong: digital economy is a great opportunity for China

at the forum of "global digital economy: deepening cooperation and enhancing mutual benefit", Zhang Yong, CEO of Alibaba, said that the "five new" strategy proposed by Ma Yun is essentially a judgment of the trend of digital economy. In the future, every face and body is a purse, and the development of digital economy is a great opportunity for China, It is a great opportunity for the development of China's market economy. Zhang Yong believes that in the future, with the development of the whole digital economy, the combination of Internet technology, Internet thinking and instry, from the consumer side to the supply side, to intelligent manufacturing and intelligent design, and to all aspects of the whole instry, the impact of the digital economy will have an all-round impact on China's future development

Liu qiangdong: he will help 500 brands overseas next year.

Liu qiangdong, chairman of the board of directors and CEO of Jingdong, who is rooted in e-commerce, has deep feelings for Chinese brands. He said that if Jingdong enters the US market and competes with Amazon, it will gather many Chinese brands. Two years ago, Jingdong set up a secret group to cooperate with various enterprises to help them sell their goods overseas. At present, Jingdong has successfully promoted 40 brands overseas, and hopes to help 500 brands next year. At the same time, he hoped that all entrepreneurs would take action to get all Chinese people out of poverty by 2020 and make them rich in another five years

It was agreed 30 years ago that we should let a group of people get rich first, and those who get rich first will help those who don't get rich. Today, some of us have become rich. It's a small goal to make a hundred million dollars a month. However, there are still tens of millions of people living in extreme poverty in our country. This is a shame for everyone of us who are rich

logistics is an important source of poverty in China's poor areas, because the poorer and more remote areas are caused by logistics, the more value consumers have to pay for instrial procts is much higher than those in rich areas such as Beijing and Shanghai

Jingdong Logistics has covered the whole of China, but we have not completely solved the problem of high logistics costs in rural areas. How can we solve it in the future? Only drones

the core reason why I want to be the honorary head of pingshitou village in Fuping County, Hebei Province is how to make the whole village not only get rid of poverty, but also become rich under the condition that the natural resources are extremely scarce, all of which are mountainous areas, and the whole village has only a few hundred mu of arable land

Ding Lei: I hope the cross-border e-commerce policy will be further liberalized.

Ding Lei, chairman and CEO of Netease, who attended the "digital silk road" sub forum, also focused on the field of e-commerce. In the past, foreign enterprises needed a high threshold to sell goods to China, he said. Cross border e-commerce allows consumers to buy foreign goods without going abroad. However, there are still restrictions on unit price and other aspects, and I hope the policy can be further liberalized. Talking about future plans, Ding Lei said that in the next few years, there are still many challenges, such as the need to sell procts made in China abroad and the need to customize foreign goods

Yao Jinbo: the new consumption concept of "post-90s" group will promote the development of sharing economy.

at the sub forum of "sharing economy: innovation and governance", Yao Jinbo, CEO of 58 group, shared a group of data from 58 city. Now, the average wage of middle and basic level people has increased from 3400 yuan a few years ago to 7000 yuan, and these people are mainly "post-80s" and "post-90s". These people have higher ecation, higher consumption ability and consumption concept. Since they have not experienced the era of scarcity economy, the consumption concept of these people has changed from ownership to use, which will promote the development of China's sharing economy. At the same time, he believes that both sharing economy, big data, artificial intelligence and other technologies can rece the gap between the rich and the poor

Cheng Wei: by 2020, half of the cars will be designed for shared travel.

Didi, who is in the wind of sharing economy, has always been the focus of the instry. Didi CEO Cheng Wei has his own hope for sharing economy. He said that he hopes that from 2018, 10 car brands will start to design cars for sharing, And the first wave of large-scale launch of shared cars will be realized in 2019. In 2017, Didi set up an automobile open platform. Didi hopes to support 1000 small automobile operators in China. In the future, cars will no longer be owned by millions of families, but may be owned by hundreds of automobile operators. After 2020, more than 50% of cars will be designed for sharing. In the new era of transportation, it will develop in the direction of sharing and intelligent new energy

Wang Xiaochuan: AI will re enable the era of big connection. According to Wang Xiaochuan, CEO of Sogou, the traditional definition of connection is to connect people, transactions and services, which is now very sufficient. The next step is to use artificial intelligence technology. From three dimensions, AI can re enable recognition, generation and decision-making. Wang Xiaochuan believes that in the past, language was the core of connection, and language had the possibility of simple processing. At the same time, it was also the carrier of the era of general artificial intelligence, turning sound and vision into words. This time, Sogou has brought a machine that can recognize lip language and convert images into words, providing new opportunities for the era of big connection

Wang Xiaofeng: bike sharing becomes transportation infrastructure

after the release of leading scientific and technological achievements on the opening day, Wang Xiaofeng, co-founder and CEO of Mo, appeared in the sub forum of "network communication and social responsibility - new era, new opportunities and new responsibilities" on December 4. Wang Xiaofeng pointed out that bike sharing meets multi-level travel needs with the combination of "ride ride ride ride", At the same time, the new travel mode of "bike sharing + public transport" can not only rece carbon emissions and road congestion, promote green transportation, but also generate massive accurate travel big data, and help urban planning and sustainable development. After a year of rapid development, bike sharing has become one of the transport infrastructures connecting various modes of travel

On December 3, the annual World Internet Conference opened in Wuzhen, where Internet leaders from all over the world gathered in Jiangnan Town to discuss the most cutting-edge topics of the instry. The following are the main views of several representative Internet entrepreneurs

no one can leave the Internet, the community of human destiny

human beings should become a "community of destiny". In the next 30 years, it will not be manufacturing instry but service instry that will drive employment. Machines will replace most mechanical work, and human beings will engage in more creative, creative and experiential work. It's better to take responsibility than worry about cyberspace and digital economy

Ma Huateng key words: technology upgrading, community of destiny in Cyberspace. The outside world is applauding, but we should see the responsibility ourselves

digital economy and real economy are integration rather than substitution. The Internet should solve the pain point of traditional enterprises

the Internet is changing from "multi-user" to "full-user" platform, just like hydropower infrastructure

Robin Li: Technology bonus, artificial intelligence

last year I said "wireless Internet Era" ended, the next scene is artificial intelligence. They didn't agree, just in the second half. This year, they also talk about artificial intelligence

the bonus of Internet users is gone, but the bonus of AI technology is coming. The growth of algorithms, computing power and data will promote the development of digital economy

AI is different from the Internet in the past and has the characteristics of vertical integration. In the past, Internet companies used to focus on software, but today they need a strong combination of software, hardware and services

Cheng Wei: didi brain, car sharing, car sharing in the future. It took didi five years to grow into the world's largest one-stop travel platform, behind which is the evolution of Didi's brain

the future belongs to carpooling, and what can be shared in the future is not only the car, but every seat in the car

we hope that the first batch of shared cars will appear in China

Zhang Yiming: internationalization, information aggregation platform

on the way to connect people and information, we need to be a platform to aggregate all information, not limited to text, pictures, videos, nor limited to transportation, stock, entertainment

today's headlines are different from the Internet, and the information they deal with is relatively long tail

internationalization will be an important growth point in the next three to four years, which has brought a lot of revenue, and should be accelerated

The scale advantage of international information flow is very important, so cooperation is necessary. That's why we acquired cheetah news Republic and invested in live.me

Lei Jun: the tide of changing planes, triathlon and 5g has ended in China, but there are still many opportunities overseas. For example, the popularity of TV in India is low. If smart phones become popular, they can experience the function of TV

integration is the trend, and Xiaomi needs to do three things: hardware, Internet and new retail. I put forward "new retail", which was half a day earlier than Ma Yun, but it was covered

in the next two or three years, the 5g era will begin, and the bandwidth will grow rapidly. The core of 5g is the connection of IOT devices

The annual Wuzhen summit also gives busy Internet tycoons a chance to have dinner. Ding Lei's dinner has also become a "reserved program" of the Wuzhen summit. This year, another dinner is also going on in the town. This is the dinner "Dongxing" organized by Jingdong Liu qiangdong and meituan

Ding Lei's main banquet is still in "Jinyi inn". Among the guests, the business chiefs include: Robin Li, Ma Huateng, Liu Qiangdong, Wang Xing, Cheng Wei, Lei Jun, Yao Jinbo, Zhou Hongyi, Zhang Zhaoyang, Zhang Zhaoyang, and so on, and investment bigwigs include Sequoia Capital.

4. The concept of Internet plus

was particularly prominent in 2017, and even aroused popular participation. Through several hot events, we can see that the Internet is no longer "tall and tall", and it is very grounded to let the whole people participate in it

As can be seen from a few events:

1. The 19th National Congress of the Communist Party of China (CPC) is no less concerned than that of the National People's Congress every year. Without looking at the contents of the conference, from the perspective of communication mode, the openness and inclusiveness of the Chinese government, we can understand the inclusive policies in all aspects of the Internet, such as wechat, microblog, major live network platforms, search platforms, etc, We media people not only expressed their concern for the event, but also participated in it

Internet plus concept Internet was especially prominent in 2017, but I think it will continue to be concerned. What will happen to Internet plus in 2018? We'll see

5. The budget of

200 is also good for choosing Bluetooth headset. The hundred yuan entry level can choose these brands of red rice and QCY. Some simple functions are easy to use. A little better can choose the awesome proct of the walker. The NANK and South card are better than the entry-level performance and detail processing. Let's choose some for you

1. Nank South Carolina half in ear Bluetooth headset

reason for recommendation: Bluetooth 5.2 bonus, super long enrance, single time 12 hours, total enrance 30 hours

Recommendation Index: 4 stars

after the upgrade of the previous generation, the configuration of this headset has obviously improved a lot, In terms of appearance, the surface and angle of the earplug shell are more ergonomically designed. Tws1 Pro will not bring too much pressure to the ear ring long-time wearing, but also will not fall off in various wearing scenes. Coupled with the waterproof and stproof grade of IP65, even if tws1 Pro is used with sports, there is no need to worry about the erosion of sweat and st. The actual sense of hearing, bass keep a certain dive at the same time will not be too ll, and for vocal and musical instrument details are quite delicate processing. Bluetooth V5.2 ensures excellent connection stability and low latency. In terms of battery life, the 12 hour battery life of the earphone body and the additional 30 hour battery life provided by the storage box can meet the needs of all scenarios

6. The 16th hexagram and 51 are repeated, the 19th hexagram has more than 0, the 21st hexagram should be 0 word 0 word 00, the 28th hexagram and 52 hexagram are repeated, the 34th hexagram and the 13th hexagram are repeated.

7. Of course, it's developed by Xi. Huawei is the pride of Chinese people. It's a famous brand. Really, if you buy a mobile phone, you can only buy it domestically. It's easy to use and affordable. It can also contribute to the country!! Support Huawei, support domestic procts! The quality of some domestic procts needs to be improved. Don't always think about making money