Smart lock unlocking method and related device

1. A method for controlling a smart lock, comprising:

monitoring, by a terminal device, a distance change trend between the terminal device and an intelligent device, wherein the intelligent device comprises the smart lock;

upon determining that the terminal device is approaching the intelligent device and a distance between the terminal device and the intelligent device is less than a first distance threshold, enabling, by the terminal device, an identity authentication process between the terminal device and the intelligent device; and

unlocking, by the terminal device, the smart lock based upon determination that identity authentication between the terminal device and the intelligent device succeeds,

wherein the method further comprises;

upon determining that the distance between the terminal device and the intelligent device is less than a second distance threshold, establishing, by the terminal deice, a communication connection to the intelligent device through Bluetooth, and triggering the monitoring of the distance change trend between the terminal device and the intelligent device, wherein the second distance threshold is greater than the first distance threshold.

2. The method according to claim 1 , further comprising:

locking the smart lock upon determining that the distance between the terminal device and the intelligent device is greater than a third distance threshold.

3. The method according to claim 1 , wherein the monitoring of the distance change trend between the terminal device and the intelligent device comprises:

determining, by the terminal device, a distance change between the terminal device and the intelligent device based on first distance information between the terminal device and the intelligent device, wherein the first distance information comprises one or more of Bluetooth signal strength change information, global positioning system (GPS) ranging information, or impulse radio ultra-wideband (IR-UWB) ranging information.

4. The method according to claim 1 , wherein before the enabling of the identity authentication process between the terminal device and the intelligent device, the method further comprises:

comparing, by the terminal device, an environment parameter of the terminal device and a corresponding environment parameter of the intelligent device to generate a comparison result, wherein the environment parameter comprises one or more of temperature, humidity, light intensity, smell, or noise;

determining, by the terminal device based on the comparison result, whether the terminal device and the intelligent device are located in a same environment; and

upon determining that the terminal device and the intelligent device are located in the same environment, allowing, by the terminal device, the identity authentication process between the terminal device and the intelligent device to be enabled.

5. The method according to claim 1 , wherein before the enabling of the identity authentication process between the terminal device and the intelligent device, the method further comprises:

initiating, by the terminal device, a sound response indication to the intelligent device;

receiving, by the terminal device, a feedback sound sent by the intelligent device based on the sound response indication; and

upon determining that the feedback sound and the sound response indication are successfully matched, allowing, by the terminal device, the identity authentication process between the terminal device and the intelligent device to be enabled.

6. The method according to claim 1 , wherein the identity authentication process between the terminal device and the intelligent device comprises: performing, by the terminal device and the intelligent device, a security authentication process based on a pre-authenticated shared key or a public-private key pair.

7. The method according to claim 1 , wherein the intelligent device comprises a plurality of smart locks; and the unlocking of the smart lock comprises:

determining, by the terminal device, a closest smart lock in the plurality of smart locks based on strength of signals received by the terminal device from the plurality of smart locks, and unlocking the closest smart lock.

8. A terminal device, comprising at least one processor and a memory, wherein

the memory is configured to store program code that, when executed by the at least one processor, cause the terminal device to perform operations comprising:

monitoring a distance change trend between the terminal device and an intelligent device, wherein the intelligent device comprises a smart lock;

upon determining that the terminal device is approaching the intelligent device and a distance between the terminal device and the intelligent device is less than a first distance threshold, enabling an identity authentication process between the terminal device and the intelligent device; and

unlocking the smart lock based upon determination that identity authentication between the terminal device and the intelligent device succeeds,

wherein the operations further comprise:

upon determining that the distance between the terminal device and the intelligent device is less than a second distance, threshold, establishing a communication connection to the intelligent device through Bluetooth, and triggering the monitoring of the distance change trend between the terminal device and the intelligent device, wherein the second distance threshold is greater than the first distance threshold.

9. The terminal device according to claim 8 , wherein the operations further comprise:

initiating a sound response indication to the intelligent device;

receiving a feedback sound sent by the intelligent device based on the sound response indication; and

upon determining that the feedback sound and the sound response indication are successfully matched, allowing the identity authentication process between the terminal device and the intelligent device to be enabled.

10. A non-transitory computer readable storage medium, storing a computer program that, when executed by at least one processor, cause the at least one processor to perform operations comprising:

monitoring a distance change trend between a terminal device and an intelligent device, wherein the intelligent device comprises a smart lock;

upon determining that the terminal device is approaching the intelligent device and a distance between the terminal device and the intelligent device is less than a first distance threshold, enabling an identity authentication process between the terminal device and the intelligent device; and

unlocking the smart lock based upon determination that identity authentication between the terminal device and the intelligent device succeeds,

wherein the operations further comprise:

upon determining that the distance between the terminal device and the intelligent device is less than a second distance threshold, establishing a communication connection to the intelligent device through Bluetooth, and triggering the monitoring of the distance change trend between the terminal device and the intelligent device, wherein the second distance threshold is greater than the first distance threshold.

11. The non-transitory computer readable storage medium according to claim 10 , wherein the operations further comprise:

locking the smart lock based upon determination that the distance between the terminal device and the intelligent device is greater than a third distance threshold.

12. The non-transitory computer readable storage medium according to claim 10 , wherein the monitoring of the distance change trend between the terminal device and the intelligent device comprises:

determining a distance change between the terminal device and the intelligent device based on first distance information between the terminal device and the intelligent device, wherein the first distance information comprises one or more of Bluetooth signal strength change information, global positioning system (GPS) ranging information, or impulse radio ultra-wideband (IR-UWB) ranging information.

13. The non-transitory computer readable storage medium according to claim 10 , when the operations further comprise:

before the enabling of the identity authentication process between the terminal device and the intelligent device,

comparing an environment parameter of the terminal device and a corresponding environment parameter of the intelligent device to generate a comparison result, wherein the environment parameter comprises one or more of temperature, humidity, light intensity, smell, or noise;

determining, based on the comparison result, whether the terminal device and the intelligent device are located in a same environment; and

upon determining that the terminal device and the intelligent device are located in the same environment, allowing the identity authentication process between the terminal device and the intelligent device to be enabled.

14. The non-transitory computer readable storage medium according to claim 10 , wherein the operations further comprise:

before the enabling of the identity authentication process between the terminal device and the intelligent device:

initiating a sound response indication to the intelligent device;

receiving a feedback sound sent by the intelligent device based on the sound response indication; and

upon determining that the feedback sound and the sound response indication are successfully matched, allowing, by the terminal device, the identity authentication process between the terminal device and the intelligent device to be enabled.

15. The non-transitory computer readable storage medium according to claim 10 , wherein the identity authentication process between the terminal device and the intelligent device comprises: performing a security authentication process based on a pre-authenticated shared key or a public-private key pair.

16. The non-transitory computer readable storage medium according to claim 10 , wherein the intelligent device comprises a plurality of smart locks; and the unlocking of the smart lock comprises:

determining a closest smart lock in the plurality of smart locks based on strength of signals received by the terminal device from the plurality of smart locks, and unlocking the closest smart lock.