Myanmar excavator mining pictures
1、 mining principle
at the beginning, we could dig bitcoin with the computer CPU. The founder of bitcoin, Nakamoto Tsung, g out the world's first creation block with his computer CPU. However, the era of CPU mining has long passed, and now bitcoin mining is the era of ASIC mining and large-scale cluster mining
looking back on the mining history, bitcoin mining has gone through the following five times: CPU mining → GPU mining → FPGA mining → ASIC mining → large-scale cluster mining, The mining speed changes are as follows:
CPU (20mhash / s) → GPU (400mhash / s) → FPGA (25ghash / s) → ASIC (3.5tash / s) → large scale cluster mining (3.5tash / s * x)
mining speed, which is called computing power in professional terms, that is, the ability of computer to generate hash collisions per second. In other words, how many hash collisions can our miner do per second is the calculation force. Computing power is the ability to dig bitcoin. The higher the computing power, the more bitcoin you dig, the higher the return
in the world of bitcoin, a data block is recorded about every 10 minutes. All mining computers are trying to package the data block and submit it, and the person who successfully generates the data block will get a bitcoin reward. Initially, bitcoin rewards of 50 bitcoins could be generated about every 10 minutes. But the payment is halved every four years, and now the bitcoin network can generate 25 bitcoins every 10 minutes
to successfully generate data blocks, miners need to find the effective hash value. To get the correct hash value, there is no shortcut. You can only guess. The process of guessing is the process of computer random hash collision. If you guess correctly, you will get bitcoin
Mining method: from a miner to a large-scale mine, you need to prepare a miner, a computer that can connect to the Internet, an AUC, a raspberry pie, power supply and all kinds of connecting lines, etc. The connection order of various devices is network cable - & gt; Raspberry pie - & gt; Microusb cable - & gt; AUC-> 4Pin cable - & gt; Mining machine and power supply
< EM > Figure 3: Mine Map (scale of tens of thousands of mining machines) < / EM >
nowadays, the profit space of small and medium-sized absenteeism who take one mining machine home or deploy a small family workshop (dozens of mining machines) is very limited, and the mining instry is graally concentrating on enterprises and teams with low-cost power resources and professional deployment ability
there are many factors that affect the mining revenue, such as the performance and power consumption of mining machinery, the computing power and difficulty of the whole network, the deployment and operation and maintenance capacity of the mine, the availability of low-cost electricity resources, and the currency price and policy guidance, etc. At present, excellent mining enterprises have the ability of chip research and development, a lot of computing power, professional mine deployment and operation experience, etc. in the future, resources and computing power will be more and more concentrated in these mining enterprises
2. Mine pool
in addition to the above equipment, you also need a necessary tool - mine pool. The function of the mine pool is to gather a large amount of mineral computing power, increase your probability of getting bitcoin, and at the same time, distribute your future bitcoin income to your account in advance
the simple explanation is as follows: now the bitcoin network generates a block every 10 minutes, which contains 25 bitcoins. Suppose there are 1W people in the world participating in mining, then in these 10 minutes, only one lucky person has taken these 25 bitcoins, and the others have nothing. The principle of the mine pool is that everyone mines in teams and distributes according to the agreed distribution method, so that the income of the miners' bitcoin tends to be stable and the risks of the miners are reced. Let's take the most common PPS allocation method as an example. Suppose that your computing power is 10t, and the computing power of the whole mine pool is 100t. Your computing power accounts for 1 / 10 of the total computing power of the mine pool. Suppose that the mine pool can generate 10 bitcoins a day, then you can get 1 bitcoin a day
3. Cloud computing power
in reality, the supply of mining machines often exceeds the demand, and at the same time, the delivery of mining machines needs a long waiting period. Miner installation, commissioning, maintenance and other processes are very complex, which requires a lot of energy. Miners have to enre the noise and heat of miner. For miners, the biggest cost is not these, but the high electricity charges consumed by mining. The profit space of small and medium-sized miners is getting smaller and smaller, even negative
Mining income and risk mining income can be calculated by the following formula:Mining income = generated bitcoin * currency price - mining machinery cost - electricity fee - custody fee
if you are just a small miner, generally you only need to dect mining machinery cost and electricity fee
Mining risks are as follows:
< UL >at present, the number of bitcoin is less than 4.5 million. If we do not issue additional bitcoin, the price of bitcoin will fluctuate, and the price callback will lead to the extension of the payback cycle
mining difficulty improvement at present, our machines can meet the market demand
the risk of power outage
< EM >
< / EM >
Terex rh400 excavator is the largest excavator in the world. There are six excavators in the world. The first one was manufactured in 1997, and the improved sixth one was launched in 2002. Among them, the fifth one is electric driven. The diesel engine version uses two Cummins qsk60-c diesel engines (16 cylinders, turbocharged) with a tank capacity of 16000 L. five of the six excavators are in the United States One is used in a Canadian mine, with a total weight of 1008 tons, a maximum power of 4398 horsepower and a bucket capacity of 43.58 cubic meters
extended data:
excavator, also known as excavation machinery, also known as excavator, is a kind of earth moving machinery that uses bucket to excavate materials higher or lower than the bearing surface, and load them into transport vehicles or unload them to the stockyard
the materials excavated by excavators are mainly soil, coal, silt and soil and rock after pre loosening. From the development of construction machinery in recent years, the development of excavator is relatively fast, excavator has become one of the most important construction machinery in engineering construction. The three most important parameters of excavator are operating weight (mass), engine power and bucket capacity
source of reference:
Network excavator
Ali's utilization is a three-dimensional and comprehensive process. It can take the initiative and wait for the hare
first, take the initiative to find. If you are an honest user, you can see the purchasing information. You'd better contact the buyer as soon as possible. However, the success rate is not very high. Because everyone can see the purchasing information, there are a lot of people who invite buyers. So the competition is fierce. But don't give up
at the same time, you can find some of your target customers, send some instry information (if you do machining, send some mechanical information), or directly send your ads, or directly communicate with the target customers, and ask them whether they need your procts. When communicating, be polite and professional, and show where your procts and services are beneficial to customers. Who are your target customers and which enterprises? You should know best
Second, wait for customers to come. If you are chengchengtong, I hope the following suggestions can help you:
1. Publish attractive supply information. This is the most basic and core issue of using Alibaba chengxintong. Because most customers use the Alibaba search box to find supply information. Therefore, how to make your information in the forefront, how to make your information attractive, is the integrity of the members must consider
one of the top information rankings is that it can be used as an online marketing treasure, that is, it can pay to the top, and the other is that it can often resend supply information. How attractive is information? This involves the optimization of information. For example, keyword selection, choosing the right information category, carefully filling in proct attributes, and writing detailed information content. Reflect what benefits your company, procts and services can bring to customers
3. If your proct is consumer goods, you can also try to open a shop on Taobao, or even develop a distribution shop owner. In this way, you can not only promote your brand, but also get orders
4. Learn more. Everyone is from the novice, so, must be good at learning, from the forum, blog learning. I believe that through your efforts, you will make good use of Alibaba platform
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