GPS (Global Positioning System) and big dipper dual-mode vehicle-mounted navigator

The utility model relates to a GPS (Global Positioning System) and big dipper dual-mode vehicle-mounted navigator, which comprises a GPS navigation host. The GPS navigation host comprises a GPS satellite positioning module, a main controller, a display and drive unit, a display module and an input control unit; and the GPS and big dipper dual-mode vehicle-mounted navigator further comprises a big dipper satellite positioning module, wherein the big dipper satellite positioning module is electrically connected to the GPS navigation host. The GPS and big dipper dual-mode vehicle-mounted navigator makes up the deficiency of two positioning systems, and the big dipper satellite positioning module serves as peripherals and can be flexibly selected by users, so that the purchasing pressure on users is relieved, the threshold for the use of a big dipper system is lowered, and the GPS and big dipper dual-mode vehicle-mounted navigator is beneficial to advancing the civil process of the big dipper system and promoting the big dipper system to exert social benefits earlier, and plays significant roles in meeting the demands of the development of national security and economic society on satellite navigation systems, promoting the transformation of modes for national information construction and economic development and realizing the social and economic benefits of the satellite navigation industry.