Method for obtaining sensor data and electronic device using the same

1. An electronic device that is detachably coupled to a frame of a head-mounted device that can be mounted on a head of a user, the electronic device comprising:

a display;

a battery;

a communication interface;

at least one sensor;

a processor electrically connected to the display, the battery, the communication interface, and the at least one sensor; and

a memory electrically connected to the processor,

wherein the memory stores instructions that, when executed, cause the processor to:

receive at least one signal from the head-mounted device through the communication interface,

identify whether the head-mounted device is electrically connected to an external power supply other than a power supply of the electronic device based on the at least one received signal,

when the head-mounted device is electrically connected to the external power supply, display visual information according to a user's action based on sensor data acquired from the head-mounted device,

while the head-mounted device is electrically connected to the external power supply, identify whether the head-mounted device is electrically disconnected from the external power supply based on the at least one received signal, and

when the head-mounted device is electrically disconnected from the external power supply, display the visual information according to the user's action based on sensor data acquired from the at least one sensor of the electronic device other than at least one sensor of the head-mounted device so as to continuously display the visual information according to the user's action.

2. The electronic device of claim 1 , wherein the instructions further cause the processor to:

acquire information related to the head-mounted device, the electronic device, or the user using the at least one sensor, and

control the electronic device based on the acquired information.

3. The electronic device of claim 2 , wherein the instructions further cause the processor to track motion of the head of the user as a control of the electronic device based on the acquired information.

4. The electronic device of claim 1 , wherein the instructions further cause the processor to adjust a power that is supplied from the battery to the head-mounted device as a control of the electronic device based on the identifying.

5. The electronic device of claim 1 , wherein the at least one sensor comprises at least one of an acceleration sensor, a gyro sensor, a geomagnetic sensor, a magnetic sensor, a proximity sensor, a gesture sensor, a grip sensor, and a biosensor.

6. The electronic device of claim 1 , wherein the at least one sensor is a same type of sensor as the at least one sensor included in the head-mounted device.

7. The electronic device of claim 6 , wherein the instructions further cause the processor to control the electronic device further based on the at least one received signal if the at least one received signal includes a signal that is generated by the same type of sensor as the sensor included in the head-mounted device.

8. A method for tracking motion of a head of a user of an electronic device, the electronic device being detachably coupled to a head-mounted device that can be mounted on the head of the user, the method comprising:

receiving at least one signal from the head-mounted device;

identifying whether the head-mounted device is electrically connected to an external power supply other than a power supply of the electronic device based on the at least one received signal;

when the head-mounted device is electrically connected to the external power supply, displaying visual information according to a user's action based on sensor data acquired from the head-mounted device;

while the head-mounted device is electrically connected to the external power supply, identifying whether the head-mounted device is electrically disconnected from the external power supply based on the at least one received signal; and

when the head-mounted device is electrically disconnected from the external power supply, displaying the visual information according to the user's action based on sensor data acquired from at least one sensor of the electronic device other than at least one sensor of the head-mounted device so as to continuously display the visual information according to the user's action.

9. The method of claim 8 , further comprising:

acquiring information related to the head-mounted device, the electronic device, or the user using at least one sensor; and

controlling the electronic device based on the acquired information.

10. The method of claim 9 , wherein the controlling of the electronic device comprises tracking motion of the head of the user based on the acquired information.

11. The method of claim 9 , wherein the at least one sensor comprises at least one of an acceleration sensor, a gyro sensor, a geomagnetic sensor, a magnetic sensor, a proximity sensor, a gesture sensor, a grip sensor, and a biosensor.

12. The method of claim 8 , wherein the controlling of the electronic device comprises adjusting a power that is supplied from a battery of the electronic device to the head-mounted device based on the identifying.

13. The method of claim 8 , further comprising:

determining whether the at least one received signal is a normal signal, and

if the at least one received signal is abnormal, tracking the motion of the head of the user based on sensor data received from the at least one sensor.

14. The method of claim 8 , further comprising:

determining whether the at least one received signal is received for a predetermined time; and

if the at least one signal is not received for the predetermined time, tracking the motion of the head of the user based on sensor data received from the at least one sensor.