Electronic enthusiasts eight o'clock: Foreign media quoted the International Energy Agency (InternaTIonal Energy Agency) report that the number of electric vehicles driving on the road surged to 2 million in 2016, and five years ago, electric vehicles can be said basically not exist.
According to the 2017 Global Electric Vehicle Outlook Report released by the Paris-based International Energy Agency, the total number of plug-in and battery-powered vehicles registered in the world in 2016 increased by 60% from the previous year. Despite rapid growth, electric vehicles account for only 0.2% of light-duty vehicles.
The International Energy Agency pointed out in a report on Wednesday that China is by far the world's largest electric vehicle market, accounting for more than 40% of global electric vehicle sales, more than double the number of electric vehicles sold in the United States.
The report also said that it is undeniable that the current rise in the electric vehicle market is mainly affected by the policy environment.
The International Energy Agency said that many governments will launch an electric car initiative on Thursday, setting the goal of increasing the market share of electric cars, buses, trucks and vans to 30% by 2030. The ten governments include China, France, Germany, the United Kingdom, and the United States.
India is not among the initiatives, when the country said last month that it plans to sell only electric cars by the end of the next decade. The world hopes that electric vehicles will help solve air pollution problems.
According to the Paris Agreement reached by the countries, the parties will strengthen the global response to the threat of climate change and control the global average temperature to 2 degrees Celsius above the pre-industrial level. To achieve this goal, the International Energy Agency says that by 2040, 600 million electric vehicles will be needed globally.
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Industrial Switches and industrial-grade optical fiber transceivers are both important parts of network data transmission equipment. An industrial switch is an Ethernet connection device for data exchange in a network, and an industrial-grade optical fiber transceiver is a photoelectric conversion device that extends the transmission distance. So what are the specific differences between them?
The difference between industrial switches and optical transceivers is:
1. Industrial switches can be point-to-multipoint, and have more interfaces than industrial-grade optical fiber transceivers.
2. Industrial-grade optical fiber transceiver is a point-to-point industrial switch, just a photoelectric conversion device.
3. Industrial switch is a kind of high-speed network transmission relay equipment. Compared with ordinary switches, it uses optical fiber cable as the transmission medium. The advantages of optical fiber transmission are fast speed and strong anti-interference ability;
4. Industrial-grade optical fiber transceiver is an Ethernet transmission media conversion unit that exchanges short-distance twisted-pair electrical signals and long-distance optical signals. It is also called a photoelectric converter in many places. ?Converter);
5. The industrial switch is to connect the fiber channel with high transmission rate to the server network, 8-port industrial switch or the internal components of the SAN network. In this way, the entire storage network has a very wide bandwidth, which provides a guarantee for high-performance data storage. .
6. The optical fiber transceiver provides ultra-low delay data transmission and is completely transparent to the network protocol. A dedicated ASIC chip is used to realize data line-speed forwarding. Programmable ASIC concentrates multiple functions on one chip, and has the advantages of simple design, high reliability, and low power consumption, which can enable equipment to obtain higher performance and lower cost.
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