GLOBAL POSITIONING SYSTEM NAVIGATION DEVICE WITHOUT REQUIRING MAP DATABASE
First Claim
1. A global positioning system (GPS) navigation device without requiring a map database, comprising:
- a casing;
an input module, installed on the casing, for inputting turning point coordinates and pre-turning point coordinates;
a global positioning system, installed in the casing and electrically coupled to the input module, for generating position coordinates of the GPS navigation device by a satellite positioning method, and outputting a direction instruction to guide a traveling direction according to the turning point coordinates and the pre-turning point coordinates;
a memory device, installed in the casing and electrically coupled to the global positioning system, for storing the turning point coordinates and the pre-turning point coordinates; and
a display device, installed on the casing and electrically coupled to the global positioning system, for displaying the direction instruction.
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Accused Products
Abstract
A GPS navigation device without requiring a map database includes a casing, an input module installed on the casing for inputting turning point coordinates and pre-turning point coordinates, a global positioning system, a memory device and a display device. The global positioning system generates position coordinates of the GPS navigation device by a satellite positioning method, outputs a direction instruction to guide a traveling direction according to the turning point coordinates and the pre-turning point coordinates, and display the information on the display device. By pre-planning a route and inputting the turning point and pre-turning point coordinates, direction instructions can be given when the GPS navigation device is situated at position of such coordinates, and thus the GPS navigation device achieves the navigation effect without requiring a map database and also achieves the effects of saving power and lowering cost.
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Citations
11 Claims
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1. A global positioning system (GPS) navigation device without requiring a map database, comprising:
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a casing; an input module, installed on the casing, for inputting turning point coordinates and pre-turning point coordinates; a global positioning system, installed in the casing and electrically coupled to the input module, for generating position coordinates of the GPS navigation device by a satellite positioning method, and outputting a direction instruction to guide a traveling direction according to the turning point coordinates and the pre-turning point coordinates; a memory device, installed in the casing and electrically coupled to the global positioning system, for storing the turning point coordinates and the pre-turning point coordinates; and a display device, installed on the casing and electrically coupled to the global positioning system, for displaying the direction instruction. - View Dependent Claims (2, 3, 4, 5)
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6. A GPS navigation device without requiring a map database, comprising:
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a casing; a touch display screen, installed on the casing, for inputting a turning point coordinates and a pre-turning point coordinates; a global positioning system, installed in the casing and electrically coupled to the touch display screen, for generating position coordinates of the GPS navigation device by a satellite positioning method, and outputting a direction instruction to guide a traveling direction according to the turning point coordinates and the pre-turning point coordinates; and a memory device, installed in the casing and electrically coupled to the global positioning system, for storing the turning point coordinates and the pre-turning point coordinates; wherein the navigation information is displayed on the touch display screen.
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7. A global positioning system (GPS) navigation method without requiring a map database, comprising the steps of:
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(A) storing a plurality of turning point coordinates and their corresponding pre-turning point coordinates into a GPS navigation device according to a navigation path; (B) generating position coordinates of a current position of the GPS navigation device by a GPS system; (C) determining a status of the position coordinates to output a corresponding direction instruction according to the turning point coordinates and the corresponding pre-turning point coordinates; and (D) displaying the corresponding direction instruction by the GPS navigation device. - View Dependent Claims (8, 9, 10, 11)
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Specification