4G industrial routers basically have VPN functions. Common VPN functions are divided into Client and Server. In terms of protocol, they are divided into PPTP, L2TP, ipsec, openvpn, gre, sstp, etc.

Application of RS485 to EthernetIn the Internet of Things industry, there are many scenarios in which industrial serial port RS485 is used. So what are the applications and solutions of RS485 serial port to Ethernet, and what is the key technology of RS485 to Ethernet.

The wireless communication module enables all kinds of Internet of Things terminal equipment to have the ability to transmit information on the Internet, and is the information portal for all kinds of intelligent terminals to access the Internet of Things.

The birth of NB-IoT technology and its inherent low power consumption and deep coverage properties just make up for many shortcomings of traditional communication technology, which can generate connections for positioning asset tracking whether it is in indoor hidden areas or outdoor areas.

The birth of NB-IoT technology perfectly solves a series of problems: the user capacity of the communication base station is 10 times that of GPRS, ultra-low power consumption, normal communication and standby current is mA and uA level, module standby time can be up to ten years , There is no need to replace the battery from birth to slaughter, reducing the workload of workers.

With the popularity of the smart home industry in recent years, smart locks appear more and more frequently in life. At present, smart locks use non-mechanical keys as user identification technology. The mainstream technologies include proximity cards, fingerprint recognition, and passwords. Recognition, facial recognition, etc., greatly improve the security of the access control, but the premise ···

How to eliminate these hidden safety hazards has become a top priority. Using NB-IoT to locate and monitor the manhole cover can grasp the status information of the manhole cover in time, and use the NB-IoT network to send an alarm to the server to notify the manager when the manhole cover moves or is damaged, so as to maximize The degree of avoidance of injury and loss.

The most important application of 5G is the Internet of Things. 5G is an important driving force for the expansion of the mobile Internet to the Internet of Things. The reason for this is that 5G has significantly improved technology.

In fact, in the early stage of 5G technical standard formulation, industrial applications were the focus of 5G demand research. The low-latency and high-reliability uRLLC technology's delay and reliability indicators were formulated to meet industrial real-time control, unmanned driving and other applications.

In 5G, there will be network slicing for various scenarios, including slicing for the Internet of Vehicles, slicing for VR, slicing for IoT devices, etc., and the granularity of network slicing will be finer, which may appear in the future. Different service quality requires different fees.