Vehicle-mounted push-to-talk voice navigation communication system

The invention discloses a vehicle-mounted push-to-talk voice navigation communication system which is communicated with a background service center and mainly comprises a center processing unit (CPU), an embedded platform, a power management unit, a display unit, a navigation process unit, an input/output unit, an audio processing unit (APU), a video processing unit and a terminal communication processing unit, wherein the CPU is respectively connected with the input/output unit, the embedded platform, the APU, the video processing unit and the power management unit; and the navigation process unit comprises a global position system (GPS) module connected with the core plate of the CPU and a power supply. The vehicle-mounted push-to-talk voice navigation communication system is characterized in that a micro control unit (MCU) is respectively connected with a center processing platform, the navigation process unit, the video processing unit and the terminal communication processing unit; and the navigation process unit also comprises a microphone-in circuit and an audio decoder which are connected with the CPU. The invention is simple in operation, and has the advantages of convenience, practicability and the like.