Key positioning method, device and equipment

Abstract

The invention provides a key positioning method, device and equipment, and the method comprises the steps: obtaining the power supply voltage of a battery in a key, and determining that a first communication assembly is in an abnormal state under the condition that the power supply voltage is smaller than the first working voltage of the first communication assembly; when the first communication assembly is in the abnormal state and the power supply voltage is larger than or equal to the second working voltage of the second communication assembly, a third communication assembly in the vehicle is controlled to be connected to the second communication assembly; and determining the distance between the third communication component and the key according to the signal characteristic parameters when the third communication component is connected with the second communication component, and determining the position of the key indicated by the distance. The problem that positioning cannot be achieved due to the fact that the first communication assembly used for positioning is abnormal when the power supply voltage is reduced can be avoided, the key is positioned through the second communication assembly of the key, and the availability of the key is improved.

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