From the perspective of physical devices, there is almost no difference between edge computing gateways and ordinary gateways. A CPU, a bunch of various network interfaces (Ethernet, Wi-Fi, Proprietary Bus, DIN/OUT, etc.). But from a protocol standpoint, there is a difference. Ordinary gateways are mainly equipped with protocols at the network layer. The purpose is to transmit the received data to another device according to the specified destination address, so the conversion of the network layer is its focus.

But the difference of the edge computing gateway is the emphasis on the word "computing". It has full processing power and can parse the data locally to get the result. Usually these parsing and results are implemented on a remote centralized server. Frankly, it would be the same if each edge network had a local server. The reason for the emergence of edge computing gateways is related to the design ideas of the entire Internet of Things. What the Internet of Things hopes is to collect terminal data and hand it over to a centralized processing unit for subsequent processing. However, in actual deployment, it is found that if things are really connected, I am afraid that the computing power of cloud computing manufacturers may not be able to handle it. The collected data has both high concurrency and time-sensitive types. The most troublesome thing is that there will be high concurrency, time-sensitive requirements, and even high computing requirements. The problem that cannot be solved when the total amount of bandwidth that the infrastructure can provide is limited, nor can it be solved simply by laying a few more optical cables. The scene that best reflects this problem is unmanned driving. In order to complete the judgment of danger within 0.1 milliseconds and take safety measures, it is obviously impossible to completely rely on 5G to transmit data, and the server will return the result after calculation. Therefore, experts propose to establish an edge computing gateway near the road, so as to ensure the response speed.

So the concept of edge computing gateway appeared. By means of edge computing, data can be preliminarily screened and processed in the edge gateway, important security information can be sent to the supervision platform and a warning will be issued, so that the efficiency of processing information can be improved and hidden danger information can be obtained in a more timely manner. Based on this concept, what edge computing needs to do is not to replace cloud platform servers, but to help cloud platform servers. So for this task, more content will focus on "how should the edge computing gateway cooperate with this scenario when part of the computing power of the cloud platform sinks", more precisely, edge computing is a set of software that cooperates with the cloud Protocols, including various application docking, local computing power distribution, etc.

Difference between Gateways and Edge Gateways

Created on:2022-09-23