Navigation method and device
A navigation method and a navigation route technology, applied in the field of car navigation, can solve the problems of wrong navigation route planning, inaccurate positioning, affecting navigation accuracy, etc., and achieve the effect of improving car navigation accuracy and calculation accuracy
Pending Publication Date: 2019-11-19
SHENZHEN POLYTECHNIC
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Problems solved by technology
Therefore, when the GPS signal booster is not installed, the positioning is inaccurate, or the navigation accuracy is seriously affected, and the navigation route planning error occurs due to the weak GPS signal.
Method used
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[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0029] refer to figure 1 as shown, figure 1 A flow chart of an embodiment of the navigation method provided by the embodiment of the present invention is shown, and for ease of description, only parts related to the embodiment of the present invention are shown.
[0030] According to the navigation method provided by the embodiment of the present invention, it can be applied when the buildings around the car are too high, dense or in bad weather, or when the car navigator cannot be connected to the Internet at present, or the network si...
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The invention discloses a navigation method and device. The method comprises the steps of scanning nearby wifi signals, obtaining wifi signal intensity of signal access points on a current car and a coordinate of each access point; calculating the distance between the current car and each wireless access point; drawing three or more corresponding circles by taking the distances as the radiuses andcalculating a positioning coordinate at the intersection of a plurality of circles as a current positioning coordinate of the car; and determining a navigation route according to the current positioning coordinate of the car and the positioning coordinate of a destination. The navigation method disclosed by the invention is suitable for car navigation when a GPS signal is relatively weak; the problems that positioning is inaccurate or the navigation accuracy is seriously affected and a planning error of the navigation route appears under the condition of not adding a GPS signal enhancer are solved; and the calculation accuracy of the car coordinate is further improved through sampling the three or more wifi signal access points, thereby improving the car navigation accuracy.
Description
technical field [0001] The invention relates to car navigation technology, in particular to a navigation method and device. Background technique [0002] Since the car navigator requires at least three satellites to locate successfully, using four satellites will be more accurate; car navigation GPS signal reception generally takes more than 60 seconds, and the specific time depends on the strength of the signal at the time; when the surrounding buildings are too high , dense or severe weather factors will also affect the GPS signal of the navigator. Usually, the navigator is dismantled and installed into a GPS amplifier to enhance the GPS signal. This method requires professional skills to disassemble the navigator and the operation process is troublesome; or use the car antenna to improve the reception of the GPS signal. During the specific operation, one end is connected The car antenna hole on the right side of the fuselage of the navigator is attached to the roof of th...
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IPC IPC(8): G01C21/34G01S5/10
CPCG01C21/34G01S5/10
Inventor 宋荣
Owner SHENZHEN POLYTECHNIC