Dynamic Bluetooth broadcast of data
A method and system for dynamically broadcasting device data using a standard Bluetooth Low Energy (BLE) advertisement packet is provided. Specifically, the Bluetooth advertisement packet can be Bluetooth 4.0 compatible that has a maximum payload size of 31 bytes excluding MAC address. The Bluetooth advertisement packet can be modified to include one or more data corresponding to one or more parameters gathered or detected by one or more sensors. The parameters can include acceleration, velocity, temperature, pressure, and the like. A BLE device employing the data schemes disclosed herein can further be configured to broadcast multiple advertisement packets each containing different data corresponding to different parameters. Thus, expending the payload capacity of advertisement packets without having to initiate pairing between a remote device and the BLE device and maintains backward compatibility without requiring the remote device to be advertising extensions (Bluetooth 5.0) compatible.
1. A method for dynamically broadcasting data comprising:
gathering first sensor data with at least a first physical sensor, the first sensor data corresponding to at least a first environmental parameter external to the first physical sensor;
gathering second sensor data with at least a second physical sensor and a third physical sensor, the second sensor data corresponding to at least a second environmental parameter and a third environmental parameter external to the second physical sensor;
generating a first Bluetooth advertisement packet comprising the first sensor data, the first sensor data occupying a first number of bytes in the first Bluetooth advertisement packet;
generating a second Bluetooth advertisement packet comprising the second sensor data, the second sensor data occupying a second number of bytes in the second Bluetooth advertisement packet, wherein the second number of bytes is different than the first number of bytes; and
transmitting alternately the first Bluetooth advertisement packet and the second Bluetooth advertisement packet according to an advertising interval,
wherein the first physical sensor and the second physical sensor are contained in a single device.
2. The method of claim 1 , wherein the first Bluetooth advertisement packet and the second Bluetooth advertisement packet each comprises a maximum of 31-bytes usable for payloads.
3. The method of claim 1 , wherein the first Bluetooth advertisement packet and the second Bluetooth advertisement packet are both Bluetooth 4.0 compatible.
4. The method of claim 1 , wherein the first sensor data is different from the second sensor data.
5. The method of claim 1 , wherein the first Bluetooth advertisement packet comprises a first element for manufacturer specific data, the first sensor data is contained within the first element; and
the second Bluetooth advertisement packet comprises a second element for manufacturer specific data, the second data is contained within the second element.
6. The method of claim 1 , wherein the first sensor data and the second sensor data each corresponds to at least one of an acceleration, a velocity, a temperature, or a pressure.
7. A method for dynamically broadcasting data comprising:
generating first sensor data with at least a first physical sensor included in a BLE device, the first sensor data corresponding to at least a first environmental parameter external to the BLE device;
generating second sensor data with at least a second physical sensor included in the BLE device and a third physical sensor included in the BLE device, the second sensor data corresponding to at least a second environmental parameter and a third environmental parameter external to the BLE device;
generating a first Bluetooth advertisement packet comprising the first sensor data, the first sensor data occupying a first number of bytes in the first Bluetooth advertisement packet;
generating a second Bluetooth advertisement packet comprising the second sensor data, the second sensor data occupying a second number of bytes in the second Bluetooth advertisement packet, wherein the second number of bytes is different than the first number of bytes;
transmitting alternately the first Bluetooth advertisement packet and the second Bluetooth advertisement packet according to an advertising interval; and
in response to receiving a request from a remote device, establishing a connection between the BLE device and the remote device.
8. The method of claim 7 , wherein the first Bluetooth advertisement packet comprises a maximum of 31-bytes usable for payloads.
9. The method of claim 7 , wherein the first Bluetooth advertisement packet is Bluetooth 4.0 compatible.
10. The method of claim 7 , wherein the first sensor data and the second sensor data each correspond to at least one of an acceleration, a velocity, a temperature, or a pressure.
11. The method of claim 7 , wherein the first Bluetooth advertisement packet comprises a first element for manufacturer specific data, the first sensor data is contained within the first element.
12. The method of claim 11 , wherein the first Bluetooth advertisement packet further comprises a second element for flags and a third element for shortened local name,
wherein the second element accounts for 3 bytes, the third element accounts for 10 bytes, and the first element accounts for a maximum of 18 bytes.
13. The method of claim 7 further comprising:
generating third sensor data with at least a fourth physical sensor included in the BLE device, the fourth sensor data corresponding to at least a fourth environmental parameter external to the BLE device.
14. The method of claim 7 , wherein the first sensor data is different from the second sensor data.