The TK-1000 settings app connects to the terminal (TK-1000) that controls the taxi vacancy lights via BLE and performs the following functions:
1. Bluetooth firmware upgrade
2. CPU firmware upgrade
3. Meter protocol settings
4. Vacancy light protocol settings
5. Navi Port protocol settings
6. Call mode settings
7. Vacancy light status control (vacant, reserved, closed, driving [off])
8. Meter connection test
9. Vacancy light operation test
10. Vehicle installation status management by dealership
This taxi vacancy light settings app performs the above functions and connects the taxi vacancy lights with the meter and driver app, ensuring they display appropriate statuses based on the taxi's vacancy, reserved, closed, and driving status.