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We compared the commonly used communication methods in the market and found as following:
| Wi-Fine | RF | Wifi | RS485 | |
| Definition | a new type of RF communication -- Wi-Fine. Wireless Free Intelligent Network |
Radio frequency is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around 20 kHz to around 300 GHz. | Wifi communication is a wireless local area network communication technology. | RS-485, also known as TIA-485 or EIA-485, is a standard, originally introduced in 1983, defining the electrical characteristics of drivers and receivers for use in serial communications systems. Electrical signaling is balanced, and multipoint systems are supported |
| advantage | reading data at any time, no latency, low-power consumption made by meter and Stable signal. | commonly used wireless communications, is favored by everyone for its strong penetrability | Using Ethernet communication protocol, the communication distance is usually tens of meters. Because of globally unified standards, any Wi-Fi standard equipment will operate correctly anywhere in the world. | The communication signal is relatively stable, |
| disadvantage | / | The transmission rate is low, which is only suitable for personal terminals and small-scale network applications. | it can only communicate with a single host. Generally it has 32 network nodes, and max 256. In addition, wiring is required. For buildings that have been renovated, installation is impossible. |
