Car looking-for method and device, and car key

Abstract

The invention discloses a car looking-for method and device, and a car key. The car looking-for method comprises the following steps: acquiring and recording the horizontal movement distance, horizontal movement angle and vertical movement distance of a car owner within each time threshold in a preset time interval so as to form a car-owner movement route in the preset time interval, wherein the vertical movement distance is acquired by a barometer; and according to the formed car-owner movement route, carrying out reverse navigation guidance. Since the acquisition of the car-owner movement route does not need to be dependent on an existing GPS positioning technology, the car looking-for method is wider in application range, more accurate in route guidance and higher in car looking-for efficiency.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a method and device for finding a car, and a car key. Background technique [0002] With the progress and development of society, people's lifestyles are undergoing profound changes, and automobiles have become an important means of transportation for the public. With the increase of personal car ownership, the construction scale of the corresponding parking lot is also increasing, which brings a headache for car owners: when the car owner goes to pick up the car, he has forgotten to park the car himself. where is it. If the car owner uses manual methods to search for vehicles in various areas, the efficiency of car search will be low, and the valuable time and energy of the car owner will be wasted. [0003] When prior art solves the above-mentioned problem, mainly contain following two kinds of schemes: [0004] Option 1: Find the car through the wireless transmitting...

AI Technical Summary

Problems solved by technology

With the increase of personal car ownership, the construction scale of the corresponding parking lot is also increasing, which brings a headache for car owners: when the car owner goes to pick up the car, he has forgotten to park the car himself. where is it

However, this solution requires high GPS signal strength in the parking lot. If there is no GPS signal in the parking lot or the strength is poor, this method is completely unavailable

In addition, this scheme can only record the position change of the owner in the horizontal direction, but cannot record the change of the position of the owner in the vertical direction

If the car owner changes the position in the vertical direction (such as taking the elevator or the parking lot is multi-storey), the correct route guidance cannot be provided to the car owner during the reverse navigation process, which will affect the efficiency of car search

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