Patent ID: 9699596
Date: 2017-07-04
CPC Classifications: H04B,H04W

Claim:
1. A method for achieving short-distance unlocking according to an electrocardiogram, comprising the following steps of: A. when a paired controlled device is found by a wearable device, determining by the wearable device whether the controlled device and the wearable device are in a short-distance state or a long-distance state therebetween; B. if the controlled device and the wearable device are in the short-distance state therebetween, then activating a short-distance communication by the wearable device to obtain an electrocardiogram of the user of the wearable device and to wirelessly transmit the electrocardiogram to the paired controlled device; and C. determining by the paired controlled device whether the received electrocardiogram matches a template electrocardiogram stored in the paired controlled device, wherein if the received electrocardiogram matches the template electrocardiogram, then the controlled device is unlocked automatically; wherein the step A specifically comprises: A1. transmitting a low-frequency signal by the wearable device to, within a first preset time period, search for whether the controlled device is within a first preset range, wherein if yes, then it is identified that the controlled device and the wearable are in the short-distance state, and otherwise, it proceeds to a following step A2; and A2. transmitting a high-frequency signal by the wearable device to, within a second preset time period, search for whether the controlled device is within a second preset range, wherein if yes, then it is identified that the controlled device and the wearable device is in the long-distance state and it returns back to the step A1 immediately; and otherwise, it returns back to the step A1 after expiration of the second preset time period; wherein the first preset range is smaller than the second preset range, and the first preset time period is smaller than the second preset time period.