In the era of big data, every string of data is the real basis of follow-up activity statistics, and data recording and statistical analysis is a tedious project that can not be made mistakes. The implementation of smart city, smart campus, smart pension and other projects cannot do without data statistics and human data analysis, and these projects also gradually use smart Bracelet / employee card and Bluetooth gateway to collect the required relevant data.
There must be many novice engineers curious about how this Bluetooth gateway works in data capture and collection applications. This paper will share the application principle of Bluetooth gateway in data capture.
This paper first introduces the Bluetooth gateway, which is a gateway device integrating Bluetooth ble, WiFi and Ethernet. Data transmission between Bluetooth ble and WiFi is realized through serial port.
Ble Bluetooth module can be used as Advertiser, scanner, slave, master and initiator.
In the data capture of Bluetooth gateway, the Bluetooth in smart bracelet and breast card (Bluetooth product) is used as the broadcaster to broadcast the relevant data of the carrier, while the Bluetooth in Bluetooth gateway is used as the scanner to collect the relevant data after scanning the broadcast information of peripheral Bluetooth ble devices.
The Bluetooth module in the Bluetooth gateway collects the broadcast information of peripheral Bluetooth ble devices once a second. Taking the application of the Bluetooth gateway in the nursing home as an example, the smart Bracelet carried by the elderly will broadcast health data such as heart rate and blood pressure;
The Bluetooth module in the Bluetooth gateway sends the broadcast information to the WiFi module in the Bluetooth gateway through UART serial port;
The WiFi module in Bluetooth gateway transmits the broadcast information to the designated UDP server or the background. The nursing home integrates the relevant health data and establishes a complete health management system for the nursing home;
The health management office of the nursing home can visit the health management background of the nursing home through mobile communication tools such as computer or mobile phone, and view the elderly's heart rate, blood pressure and other related health data in real time.
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