4G WiFi routers, in fact, add a 4G dial-up part on the basis of ordinary routers, which are divided into built-in and external. Receive base station signals and access the Internet. The external one is to connect the USB 4G network card to the USB interface of the 4G WiFi router to realize dial-up Internet access, that is, to allow Internet access to be shared.
1. 4G WiFi router introduction
4G WiFi routers are naturally different from the past. Ordinary routers use a network cable to allow the router to access the Internet, while 4G wireless routers are different. Insert a SIM card to become a 4G wireless router. Three major carrier networks. That is, as long as it is a 4G card, whether it is a telecom, mobile, or China Unicom card, as long as it is inserted, it can access the Internet. At the same time, it also supports wired links, that is, plugging in a network cable can also become a router. It is one of the best products for field data transmission, video surveillance, and bus wifi.
2. 4G WiFi router application fields
4G WiFi router IoT applications, from power distribution automation in the industrial field, CNC machine tools, thermal metering transformation, elevators and other large equipment remote monitoring, to the commercial field of self-service terminal networking, multimedia advertising remote release, parking guidance, and then to the people's livelihood field The public bicycle system, WIFI bus, water source monitoring, etc., are surging and developing rapidly.
4G wireless router is a key component of the integrated application system of the Internet of Things. It uses the public wireless network to provide users with wireless data transmission functions and builds a bridge between data collection and application. Its stability and reliability directly affect the networking and daily operation of the project.
2.1 Application of 4G WiFi Router in Smart Grid Remote Video Surveillance
The remote video monitoring system has been widely used in the intelligent monitoring of transmission lines. The system conducts remote real-time video monitoring of transmission lines, towers at all levels of transmission lines, and transmission and substation devices. The real-time video image information collected can be transmitted through Four-Faith 4G industrial-grade wireless The router link is transmitted to the management center. Real-time monitoring of the status of transmission lines to improve the level of lean production management.
2.2 Application of 4G WiFi router self-service terminal networking
The use of Zhongshan Technology G industrial-grade wireless router for networking can facilitate the wireless networking and remote management of self-service terminals. Operators can deploy self-service equipment such as self-service harvesters, ticket machines, payment terminals, etc. to any area covered by wireless networks, such as shopping malls, blocks, communities, etc., to greatly increase business transaction volume
2.3 4G WiFi router remote monitoring application of large medical equipment
Zhongshan Technology proposes a large-scale medical equipment remote monitoring system based on 4G industrial-grade wireless routers, using Four-Faith F3X27 4G industrial-grade wireless routers to realize the wireless networking between the manufacturer's technical service center and medical equipment in various regions, and the data of medical equipment in various regions. It can be sent to the service center through the 4G/3G network formed by the 4G industrial-grade wireless router, and the service center will analyze, store and track the transmitted data. In this way, the technicians of the manufacturer's service center can respond quickly after the fault is discovered, immediately locate each medical device, and conduct fault diagnosis through the remote equipment maintenance port. It is also convenient for medical equipment management personnel to transmit medical equipment information through the mobile terminal and use the network to prompt the management status of the medical equipment in real time, which is convenient for maintenance.
3. What is a dual-band 4G WiFi router
Dual-band 4G WiFi routers can work in 2.4G and 5G modes at the same time, but single-band wireless routers can only work in 2.4G mode.
3.1 5G WiFi refers to the fifth-generation WiFi technology, also known as 802.11ac
3.2 2.4G refers to 802.11n, so it is called 2.4GWiFi
A simple understanding of a dual-band router is that it can transmit signals from two different network frequency bands; the frequency band is divided into 2.4G and 5G.
Dual-band wireless router: 2.4G signals have stronger ability to penetrate walls, but are prone to interference, while 5G signals are less susceptible to interference, and the signal bandwidth is wider, but the ability to penetrate walls is weak.
In layman's terms: dual-band WIFI is a 4G WiFi router that sends out two WIFI signals, which is equivalent to driving to a destination. It used to be a road, and everyone would be congested when walking on this road. Now there is an extra highway that is not congested. , you can reach your destination faster.
Professional speaking: The difference between dual-band routers and single-band routers is obvious, that is, the 5GHz frequency band is added to form a 2.4GHz+5GHz dual-band router. Compared with ordinary routers, dual-band routers have the advantages of higher wireless transmission rate, stronger anti-interference, better stability, less dropped calls, etc. Switch between 5GHz to meet different needs.
The dual-band 4G WiFi router supports the 802.11ac protocol. Under this protocol, dual-channel wifi can reach 867Mbps, and a single-channel wifi mobile phone can also reach a connection speed of 433.3Mbps. What’s more, the 5G frequency is relatively high, but the 5G wifi can pass through the wall. The performance is not good, and this disadvantage turns precisely into an advantage in terms of interference.
Selection guide: Although 5G frequency WIFI is faster, the disadvantage is that the signal coverage is small. If the home area is large, it is recommended to use the 2.4G frequency, which has stronger penetration and larger coverage.
