For decades, this large, reliable, and cheap energy source has been supplying electricity to the United States - now it is facing a crisis. The economic environment has changed, and it is precisely this spirit of the times that has kept pace with the times that made nuclear power prosperous. Cheap natural gas and renewable energy are devouring its former market. In the past few years, there have been several large factories that have been shut down continuously. Earlier this week, another major power company announced that it would shut down a 685 MW plant in Massachusetts. However, this production line was not replaced by any other project.
Yes, the bottleneck of nuclear power is coming.
Look at what we did? The top news in the United States in recent weeks has been the decline in coal-based energy production capacity. However, the nuclear energy industry, which accounts for 20% of the nation's electricity supply, is also gradually declining. It stands to reason that nuclear energy should survive in the current environment: after all, it is a non-polluting energy source. The use of nuclear energy should meet the goal of reducing emissions today. However, this is not the case for the following reasons.
The history of the development of nuclear energy is not long. After the accident on the Sanli Island in 1979, a nuclear reactor was destroyed and the United States immediately halted a new nuclear project. Even after several years, the development of this industry is still stalled. From then on until 1996, "WattsBar1" was allowed to go online in Tennessee. At the same time, no other nuclear power plant was shut down except for a set of installations at a landmark facility in Connecticut in 2001. In 2011, the U.S. Energy Information Administration stated that there were 104 nuclear power plants in the United States.
However, the situation has changed. In 2012, Southern California Edison Power Company shut down two sets of equipment for its ultra-large nuclear power plant in Sanonofrio; in mid-2013, the company announced that the two devices will never be on-line. With a total capacity of more than two gigawatts, they account for almost 2% of the nation's nuclear capacity. In February 2013, Duke Power shut down the Crystal River nuclear power plant in northern Tampa (capacity: 860 MW). In May 2013, Dominic also shut down the 560MW Kiwani power station on Lake Michigan in the Wisconsin coast. In December 2014, Antege closed the Vermont Yankee nuclear power plant. These closed factories have led to a 4% reduction in nuclear power in the United States. More collapses are coming. A few years ago, Essence announced that they would turn off the Oyster River nuclear power plant in New Jersey before 2019. Similarly, the Massachusetts Pilgrimage Nuclear Power Plant is about to close.
Analysis of advantages and disadvantages of 4G industrial routers
First, what is the classification of industrial routers?
Industrial Router (a communication device that can be divided into 2G routers, 2.5G routers, 3G routers and 4G routers according to network standards.
For users, you can communicate with the Internet by setting a default gateway on your PC or network device. In fact, the default gateway configured for network devices is the packet export for network devices. After the packet is sent to the Ethernet port of the router, the router performs the next job, so the router is an Internet relay.
Second, how do industrial routers work
So how does the router forward the packet? Just like getting somewhere, you need to place a route. This route is a routing table. This routing table contains all the destination network addresses owned by the router, as well as the best path to reach those networks through the router. This is because there is a routing table, so the router can forward packets according to the routing table. That's how routers work.
Understand what is an industrial router and how it works, it is not difficult to understand the advantages and disadvantages of the router. Here we focus on the advantages and disadvantages of 4G industrial routers.
Third, the advantages of 4G industrial routers
For networks interconnected via single-protocol industrial-grade wireless routers, the same or different protocols can be used at layers 1-2. Layer 3 uses the same routable protocol and requires the same or compatible protocols at layer 4 and beyond.
Industrial routers can perform complex routing calculations and are suitable for connecting three or more large networks with complex network topologies.
Industrial-grade routers can isolate broadcast storm information in the source network, thereby reducing and mitigating the impact of broadcast storms.
Multiprotocol industrial wireless routers can be used as network interconnection platforms using different communication protocols because they can connect to the network using different communication protocols.
The entire network router can also be used as a bridge to handle non-routable protocols.
Industrial 4G routers enable you to isolate unnecessary communications so that the interconnected network maintains its own area of independent management and control, thereby improving network security performance. Therefore, industrial-grade 4G routers are commonly used as firewalls to restrict access to the internal and external networks (Internet) of the LAN, as well as the internal areas of the LAN, and act as network masking.
It can provide reliable transport and prioritization services, and industrial LTE routers do not need to maintain a persistent connection between networks that communicate with each other.
Complete Netcom router network segmentation improves network performance and reduces host load.
Third, the advantages of 4G industrial routers
High price
When installing an industrial LTE router, it is difficult to install and maintain due to the large number of initial configurations
If you spend more time processing, the transmission performance of the entire network of the industrial router will decrease.
Unlike Bridges, routers across industrial networks are protocol-related. Each advanced protocol used for network connectivity must be configured separately, and an industrial-grade network-grade router with a separate protocol for each protocol must be provided.
Industrial Netcom routers do not support non-routed protocols, so when interconnecting multiple networks, there are restrictions on the protocols used by the connected networks.
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