China Academy of Engineering: China will complete the transformation of its energy system in 2050

The Chinese Academy of Engineering announced in Beijing on the 28th that its completed major project research results stated that through the implementation of scientific, green, and low-carbon energy strategies, it is expected that there will be a historic turning point in China's energy development around 2030. By 2050, China will basically complete energy. The reform of the system realizes a scientific balance of energy supply and demand patterns. In the energy structure, clean energy will account for more than half, and will continue to increase momentum.

The major project named “China Energy Mid-to-Long-Term (2030, 2050) Development Strategy Study” proposes that the scientific, green, and low-carbon energy strategy is China’s energy strategy for sustainable development, and China’s energy science development must strengthen “the priority To control the "strategy," the total control of energy consumption must not only control the energy intensity of GDP, but also control the excessive growth of annual GDP. The average GDP growth during the 12th Five-Year Plan period is 8%, which is already a very positive and high-level growth target.

The "China Energy Mid-to-Long-Term (2030, 2050) Development Strategy Study" proposes a number of recommendations for the implementation of scientific, green, and low-carbon energy strategies. In terms of the management system, the country sets up a unified energy management department and is fully responsible for formulating energy strategies; And enterprises, improve the scientific evaluation index system, in the GDP growth rate, emphasis is good and fast, not the pursuit of double-digit growth, focus on the quality of development, efficiency, the energy-saving, green, low-carbon requirements as a hard indicator, included in Assessment system. Introduce the target of total fossil energy consumption control so as to prevent blindly expanding investment and avoid simply pursuing GDP growth.

In terms of economic policy, it has improved energy legislation, introduced policies on resource taxes, energy consumption taxes, emission taxes, carbon taxes, property taxes, adjustment of energy prices, and strengthened resource management, improved various types of access standards, technical standards, and improved energy conservation standards. Control exports of high energy-consuming products, encourage the export of high value-added products, systematically guide low-energy-consumption buildings, energy-saving and emission-reduction vehicles, promote the healthy development of the construction industry and automobile industry, properly control the ownership rate of Chinese automobiles, and strictly control high-energy-consuming industries. Growth, vigorously develop productive services.

At the same time, implement a batch of key energy policies as soon as possible, build national-level energy science and technology R&D institutions and platforms, speed up major scientific and technological breakthroughs in energy, and vigorously promote the idea of ​​green consumption and ecological civilization. Academician of the Chinese Academy of Engineering and “China's Energy Mid-to-Long Term (2030, 2050) Development Strategy Du Xiangyu, head of the Research Projects Major Project Team, stated that in the exploration of the “China model”, the Chinese must create a new path for sustainable development. Scientific, green, and low-carbon energy strategies are the elements of this path. "The innovation of this road will be China's most important contribution to mankind."

Ethernet Switch

Test items
The performance indicators are tested using a dedicated Ethernet test instrument, and the test results of these performance indicators can also evaluate whether the LAN system meets the acceptance requirements. From GBT21671-2008 "Ethernet-based LAN System Acceptance Evaluation Specification", it can be understood that LAN can also judge performance by measuring performance indicators such as network throughput, transmission delay, and packet loss rate. The Ethernet tester is a rugged test platform suitable for field use. It has a complete Ethernet test function, dual optical ports and dual electrical ports, Ethernet service interface module, HST-3000 supports multiple data stream tests. Including 10/100/1000M Ethernet link traffic generation and troubleshooting, it can test electrical and optical port links up to 1Gbit/s. Due to the limitation of various conditions in the acceptance inspection, point-to-point or routing network testing can be supported for routine testing of switches.
The problem
The overall characteristics of modern test instruments are high reliability, high performance and high applicability. Therefore, the gap between domestic test products and foreign products is reflected in this aspect. Although some domestic testing equipment is close to the international advanced level in certain performance indicators, there are generally few products with comprehensive equipment performance indicators that meet international standards. In addition, most of the domestic test instruments are common specifications, which cannot meet the test work in some special environments. Low-level automated testing is also a common problem. [3]
Switch test technology
Nowadays, switches put forward new requirements on the performance of switches based on application requirements. There have been new developments in comprehensive network services, security, and intelligence. Protocol testing is a basic switch testing technology. The network protocol is to improve the efficiency of testing and the effectiveness of communication to ensure the rules of communication. In the era of increasing network communication, network protocols are also indispensable. The basic requirements of network protocols are correct functions, good interoperability and superior performance. The initial prototype of protocol testing is software testing, and the main categories are black box testing, white box testing and gray box testing.

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