With GPS technology expanding into civilian applications like automobile navigation, systems now combine GPS, e-maps, and wireless networks. UARTs (Universal Asynchronous Receiver/Transmitters) are used to convert between serial and parallel data, synchronize asynchronous serial streams using start and stop bits, and ensure data integrity via parity bits checked by the receiver—functions essential for interfacing GPS serial data with digital systems.
- GPS receiver module
- UART (Universal Asynchronous Receiver/Transmitter)
- Microcontroller or digital processing unit
- E-map software/data
- Wireless network interface
- Serial data lines (TX/RX)
- Power supply
UART in GPS navigation system
With the rapid development of GPS (Global Positioning System) techniques, GPS gets wider application in many fields. GPS has features such as high precision, global coverage, convenience, high quality, and low cost. Recently, the use of GPS extends speedily from military to civilian applications such as automobile navigation systems which combine the GPS system, e-map, and wireless network. GPS is getting popular, and the market for GPS techniques is extending continuously.
UARTs provide serial asynchronous receive data synchronization, parallel-to-serial and serial-to-parallel data conversion for both the transmitter and receiver sections. These functions are necessary for converting the serial data stream into parallel data that is required with digital systems. Synchronization for the serial data stream is accomplished by adding start and stop bits to the transmit data to form a data character. Data integrity is ensured by attaching a parity bit to the data character. The parity bit is checked by the receiver for any transmission bit errors.
For more detail: UART in GPS navigation system
- What role does UART play in a GPS navigation system?
UART converts serial GPS data to parallel form for digital systems and handles synchronization and parity checking. - How is serial data synchronization achieved?
Synchronization is accomplished by adding start and stop bits to the transmit data to form a data character. - Does UART ensure data integrity?
Yes, UART ensures data integrity by attaching a parity bit to the data character which the receiver checks for transmission bit errors. - Can UART perform parallel-to-serial conversion?
Yes, UART provides parallel-to-serial conversion for the transmitter section. - Can UART perform serial-to-parallel conversion?
Yes, UART provides serial-to-parallel conversion for the receiver section. - Why are start and stop bits necessary?
Start and stop bits are necessary to synchronize the asynchronous serial data stream into recognizable data characters. - Is UART required to interface GPS with e-map and wireless modules?
UART functions are necessary for converting GPS serial data into parallel data required by digital systems that integrate e-map and wireless modules.
