4G industrial-grade wireless router refers to an industrial-grade outdoor high-speed wireless Internet terminal that utilizes 4G LTE network to achieve long-distance wireless transmission of data.

Industrial-grade 4g modem routers are generally more stable than the civilian 4G wireless routers on the market, more adaptable to continuous operation in harsh weather conditions, and more costly. At present, it is widely used in the M2M industry in the industrial chain of the Internet of things, such as smart life, smart grid, smart transportation, industrial automation, smart building, public security, environmental monitoring, smart agriculture and other fields.

The 4g modem router determines the compatible network mode through the built-in 4G modules, which are generally compatible with 3G and 2G downward, and will switch automatically in areas with unstable 4G signals.

The new retail vending machine is a kind of computer terminal equipment specially used for self-service selling and collection of people. Its convenient and fast service has become a kind of lifestyle. This system adopts E-Lins’ 4G modem router to establish transparent data channel with the host server of monitoring center and realize wireless networking of vending machine. The system feeds back the current state of the vending machine and products in a timely and automatic manner, and monitors the Internet 24 hours a day to ensure the efficient operation of the vending machine.