Information apparatus and method for position detection using communicated antenna configuration

1. An information processing apparatus configured to execute communication with a communication apparatus including a plurality of antennas, comprising:

at least one processor; and

at least one memory storing instructions that, when executed by the at least one processor, perform the functions of

a communication unit configured to receive a signal transmitted from each of the plurality of antennas of the communication apparatus;

an acquisition unit configured to acquire information concerning a distance between the plurality of antennas of the communication apparatus, which is included in the received signal; and

an identifying unit configured to identify information concerning an angle between the information processing apparatus and the communication apparatus based on the acquired information concerning the distance between the plurality of antennas,

wherein at least one of a first signal transmitted from a first antenna in the plurality of antennas and a second signal transmitted from a second antenna includes information concerning an arrangement of the plurality of antennas, and

the acquisition unit acquires the information concerning the distance between the plurality of antennas based on the information concerning the arrangement included in at least one of the first signal and the second signal.

2. The information processing apparatus according to claim 1 , wherein the identifying unit identifies position information of the communication apparatus based on the information concerning the angle.

3. The information processing apparatus according to claim 1 , wherein the information concerning the arrangement includes information concerning at least one of an arrangement pattern of the antennas, the number of antennas arranged in one direction, and a length of an area where the antennas are located.

4. The information processing apparatus according to claim 1 , wherein each of the first signal and the second signal includes different information as the information concerning the arrangement.

5. The information processing apparatus according to claim 1 , wherein the communication unit receives, at a first position, the first signal transmitted from the first antenna in the plurality of antennas and the second signal transmitted from the second antenna, and receives the first signal and the second signal at a second position different from the first position,

the acquisition unit acquires the information concerning the distance between the plurality of antennas based on a reception result at the first position, a reception result at the second position, and a distance between the first position and the second position, and

the identifying unit specifies the information concerning the angle based on the information concerning the distance between the plurality of antennas, the first signal, and the second signal.

6. The information processing apparatus according to claim 5 , wherein the acquisition unit acquires the distance between the first position and the second position based on values of an acceleration sensor, a sensor of a Global Positioning System, and a geomagnetic sensor.

7. The information processing apparatus according to claim 5 , wherein the communication unit further performs the function of a moving unit configured to move, in a device, at least one antenna of the plurality of antennas from the first position to the second position, and

the acquisition unit acquires the distance between the first position and the second position based on a moving amount of the at least one antenna by the moving unit.

8. The information processing apparatus according to claim 1 , wherein the communication unit receives the information concerning the arrangement of the plurality of antennas by communication performed by establishing connection between the communication apparatus and the information processing apparatus, and

the acquisition unit acquires the information concerning the distance between the plurality of antennas based on the information concerning the arrangement of the plurality of antennas.

9. The information processing apparatus according to claim 1 , wherein the communication unit includes at least two antennas including the first antenna and the second antenna different from the first antenna,

the communication unit receives the first signal and the second signal using the first antenna, and receives the first signal and the second signal using the second antenna,

the acquisition unit estimates the information concerning the distance between the plurality of antennas based on a reception result received using the first antenna, a reception result received using the second antenna, and a distance between the first antenna and the second antenna, and

the identifying unit specifies the information concerning the angle based on the information concerning the distance between the plurality of antennas, the first signal, and the second signal.

10. The information processing apparatus according to claim 1 , wherein the signal transmitted from each of the plurality of antennas is advertisement information based on a Bluetooth5.1 standard.

11. The information processing apparatus according to claim 1 , wherein a reception result of the signal includes at least one of a propagation delay and a propagation loss of the signal transmitted from at least one of the plurality of antennas.

12. An information processing method executed by an information processing apparatus configured to execute communication with a communication apparatus including a plurality of antennas, comprising:

receiving a signal transmitted from each of the plurality of antennas of the communication apparatus;

acquiring information concerning a distance between the plurality of antennas of the communication apparatus, which is included in the received signal; and

identifying information concerning an angle between the information processing apparatus and the communication apparatus based on the acquired information concerning the distance between the plurality of antennas,

wherein at least one of a first signal transmitted from a first antenna in the plurality of antennas and a second signal transmitted from a second antenna includes information concerning an arrangement of the plurality of antennas, and

the acquiring comprises acquiring the information concerning the distance between the plurality of antennas based on the information concerning the arrangement included in at least one of the first signal and the second signal.

13. A position detection system comprising a communication apparatus and an information processing apparatus, comprising:

the communication apparatus comprising a first communication unit configured to transmit a signal from each of a plurality of antennas; and

the information processing apparatus comprising:

at least one processor; and

at least one memory storing instructions that, when executed by the at least one processor, perform the functions of

a second communication unit configured to receive the signal transmitted from each of the plurality of antennas of the communication apparatus;

an acquisition unit configured to acquire information concerning a distance between the plurality of antennas of the communication apparatus, which is included in the received signal; and

an identifying unit configured to identify information concerning an angle between the information processing apparatus and the communication apparatus based on the acquired information concerning the distance between the plurality of antennas,

wherein at least one of a first signal transmitted from a first antenna in the plurality of antennas and a second signal transmitted from a second antenna includes information concerning an arrangement of the plurality of antennas, and

the acquisition unit acquires the information concerning the distance between the plurality of antennas based on the information concerning the arrangement included in at least one of the first signal and the second signal.