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Why are Wi-Fi modules unpopular in the smart home compared to Bluetooth?

Release Time:

2020-08-29

Compared with BLE Bluetooth module, Wi-Fi is not dominant in power consumption, but in fact, Wi-Fi module is widely used in the field of smart home, such as smart socket scheme, intelligent security, intelligent monitoring, intelligent gateway, etc., can not be separated from the support of Wi-Fi mo

Smart socket solution

The smart socket scheme is mainly based on SKYLAB WiFi module WU106/WG219 to realize wireless data transmission, control and other functions. SKYLAB provides: 1) hardware reference design; 2) Cloud platform services; 3)iOS and Android APP design services; 4) Embedded software services; 5)WiFi module WU106/WG219.

Description of smart socket scheme: The mobile APP connects to WiFi through the router and controls the WiFi smart socket with built-in serial port WiFi module to achieve different functions, such as timing, delay and automatic alarm; Power on, power off and usb charging, network remote control, electricity statistics, energy saving...... Such operation; Outside the WiFi radiation range, it can also be controlled through the cloud.

Home gateway scheme

The gateway can realize the protocol conversion between awareness network and communication network, as well as between different types of awareness network. It can realize both wide area interconnection and local area interconnection. In addition, the home gateway also has the function of device management. Through the home gateway, users can manage all kinds of household appliances and equipment in the home, understand the relevant information of each household appliance and equipment, and realize remote control.

Description of the home gateway solution: The home gateway device with built-in serial port WiFi module integrates several common AD hoc communication protocols and can communicate with devices or subsystems using different protocols at the same time. The user's mobile phone only needs to operate the gateway to control all the smart devices connected to the gateway at home, so as to realize the function of the home network control center through the smart home gateway.

Bluetooth gateway scheme

In the Internet of Things application scenario, BLE Bluetooth and WiFi are the two most widely used wireless communication modes, and Bluetooth gateway is a gateway device that integrates BLE Bluetooth low power and WiFi. WiFi and BLE Bluetooth low power wireless communication modes are built into the Bluetooth gateway, and WiFi and BLE Bluetooth communicate through serial port. It can be flexibly applied to various scenarios.

Description of Bluetooth gateway scheme: The mobile Bluetooth device enters the range of a Bluetooth gateway, connects with the Bluetooth part of the Bluetooth gateway, and transmits the current data; The Bluetooth part of the Bluetooth gateway receives the data, connects to the WiFi module through the serial port and transmits the data; The WiFi part of the Bluetooth gateway transmits data to the server through a wireless router (in this case, the Bluetooth gateway needs DC_5V power supply) or the WiFi part of the Bluetooth gateway transmits data to the server through an RJ45 connection to the POE switch (in this case, the Bluetooth gateway can directly use POE power supply). The control end loads the server data and controls the current situation. After calculation and analysis, the server will display the positioning information of the Bluetooth device in the front end. The control command can also be transmitted to the WiFi of the Bluetooth gateway through the server, and the WiFi will be transmitted to the Bluetooth, and the Bluetooth will be transmitted to the Bluetooth device to realize the control.

Reprinted from RFID World network