Granted Patent B2

US 12,625,252 · App. 18/348,862 · Granted May 12, 2026

Inventors: Seong-Hwan Hyun (Seoul, KR); Seong-Cheol Kim (Seoul, KR); Jihye Kim (Seoul, KR)

Assignees: Samsung Electronics Co., Ltd.; Seoul National University R&DB Foundation

G01S13/87G01S13/06G01S13/582G01S13/584G01S13/878G01S13/92G01S2013/468

Abstract

Claims (75)

1 . An operating method of a server to calculate a position of a measurement target, the operating method comprising:

receiving measurement information from a plurality of roadside base stations, the plurality of roadside base stations including at least three roadside base stations, the measurement information indicating respective distances between each of the at least three roadside base stations and the measurement target, the measurement information including

first measurement information including a result of measuring the measurement target by a first electronic device, the first electronic device at a first roadside base station of the at least three roadside base stations, and

second measurement information including a result of measuring the measurement target by a second electronic device, the second electronic device at a second roadside base station of the at least three roadside base stations;

calculating the position of the measurement target based on the first measurement information, the second measurement information, a position of the first electronic device, and a position of the second electronic device, the calculating based on a determination that the first roadside base station and the second roadside base station are a closest two roadside base stations to the measurement target among the plurality of roadside base stations, based on the measurement information received from the plurality of roadside base stations; and

transmitting driving information to one or more vehicles based on the calculated position of the measurement target to cause the one or more vehicles to adjust navigation of the one or more vehicles.

2 . The operating method of claim 1 , wherein

the first measurement information comprises

a first distance, which is a distance between the first electronic device and the measurement target, and

a first relative speed, which is a relative speed of the measurement target with respect to the first electronic device, and

the second measurement information comprises

a second distance, which is a distance between the second electronic device and the measurement target, and

a second relative speed, which is a relative speed of the measurement target with respect to the second electronic device.

3 . The operating method of claim 2 , wherein

the first distance is measured based on a time interval between a first transmission signal transmitted by the first electronic device and a first reflection signal generated by the first transmission signal reflected by the measurement target, and

the second distance is measured based on a time interval between a second transmission signal transmitted by the second electronic device and a second reflection signal generated by the second transmission signal reflected by the measurement target.

4 . The operating method of claim 3 , wherein

the first relative speed is measured based on a frequency of the first transmission signal and a frequency of the first reflection signal, and

the second relative speed is measured based on a frequency of the second transmission signal and a frequency of the second reflection signal.

5 . The operating method of claim 2 , wherein the calculating of the position of the measurement target comprises calculating the position of the measurement target based on a relational expression among the position of the first electronic device, the position of the second electronic device, the first distance, the second distance, the first relative speed, the second relative speed, and the position of the measurement target.

6 . The operating method of claim 2 , further comprising calculating an absolute speed of the measurement target based on the position of the measurement target and at least one of the first relative speed or the second relative speed.

7 . The operating method of claim 6 , wherein the calculating of the absolute speed of the measurement target comprises:

determining whether it is possible to calculate the absolute speed of the measurement target based on the position of the first electronic device and the position of the measurement target;

in response to a determination that it is possible to calculate the absolute speed of the measurement target based on the position of the first electronic device and the position of the measurement target, calculating the absolute speed of the measurement target based on the first relative speed, the position of the first electronic device, and the position of the measurement target; and

in response to a determination that it is not possible to calculate the absolute speed of the measurement target based on the position of the first electronic device and the position of the measurement target, calculating the absolute speed of the measurement target based on the second relative speed, the position of the second electronic device, and the position of the measurement target.

8 . The operating method of claim 6 , wherein the calculating of the absolute speed of the measurement target comprises:

comparing an absolute value of the first relative speed with an absolute value of the second relative speed;

in response to a determination that the absolute value of the first relative speed is equal to or greater than the absolute value of the second relative speed, calculating the absolute speed of the measurement target based on the first relative speed, the position of the first electronic device, and the position of the measurement target; and

in response to a determination that the absolute value of the first relative speed is smaller than the absolute value of the second relative speed, calculating the absolute speed of the measurement target based on the second relative speed, the position of the second electronic device, and the position of the measurement target.

9 . A server, comprising:

a communication circuit configured to communicate with a first electronic device and a second electronic device;

a processor configured to execute one or more instructions; and

a memory configured to store the one or more instructions,

wherein the communication circuit is configured to

transmit a measurement request for a measurement target to a plurality of roadside base stations, the plurality of roadside base stations including at least three roadside base stations,

receive measurement information from the plurality of roadside base stations, the measurement information indicating respective distances between each of the at least three roadside base stations and the measurement target, the measurement information including

first measurement information including a result of measuring the measurement target by the first electronic device, the first electronic device at a first roadside base station of the at least three roadside base stations, and

second measurement information including a result of measuring the measurement target by the second electronic device, the second electronic device at a second roadside base station of the at least three roadside base stations,

wherein the processor is configured to execute the one or more instructions to

calculate a position of the measurement target based on the first measurement information, the second measurement information, a position of the first electronic device, and a position of the second electronic device, the calculating based on a determination that the first roadside base station and the second roadside base station are a closest two roadside base stations to the measurement target among the plurality of roadside base stations, based on the measurement information received from the plurality of roadside base stations, and

transmit driving information to one or more vehicles based on the calculated position of the measurement target to cause the one or more vehicles to adjust navigation of the one or more vehicles.

10 . The server of claim 9 , wherein

the first measurement information comprises

a first distance, which is a distance between the first electronic device and the measurement target, and

a first relative speed, which is a relative speed of the measurement target with respect to the first electronic device, and

wherein the second measurement information comprises

a second distance, which is a distance between the second electronic device and the measurement target, and

a second relative speed, which is a relative speed of the measurement target with respect to the second electronic device.

11 . The server of claim 10 , wherein

the first distance is measured based on a time interval between a first transmission signal transmitted by the first electronic device and a first reflection signal generated by the first transmission signal reflected by the measurement target, and

the second distance is measured based on a time interval between a second transmission signal transmitted by the second electronic device and a second reflection signal generated by the second transmission signal reflected by the measurement target.

12 . The server of claim 11 , wherein

the first relative speed is measured based on a frequency of the first transmission signal and a frequency of the first reflection signal, and

the second relative speed is measured based on a frequency of the second transmission signal and a frequency of the second reflection signal.

13 . The server of claim 10 , wherein the processor is configured to execute the one or more instructions to calculate the position of the measurement target based on a relational expression among the position of the first electronic device, the position of the second electronic device, the first distance, the second distance, the first relative speed, the second relative speed, and the position of the measurement target.

14 . The server of claim 10 , wherein the processor is configured to execute the one or more instructions to calculate an absolute speed of the measurement target based on the position of the measurement target and at least one of the first relative speed or the second relative speed.

15 . The server of claim 14 , wherein the processor is configured to execute the one or more instructions to

determine whether it is possible to calculate the absolute speed of the measurement target based on the position of the first electronic device and the position of the measurement target,

in response to a determination that it is possible to calculate the absolute speed of the measurement target based on the position of the first electronic device and the position of the measurement target, calculate the absolute speed of the measurement target, based on the first relative speed, the position of the first electronic device, and the position of the measurement target, and

in response to a determination that it is not possible to calculate the absolute speed of the measurement target based on the position of the first electronic device and the position of the measurement target, calculate the absolute speed of the measurement target, based on the second relative speed, the position of the second electronic device, and the position of the measurement target.

16 . The server of claim 14 , wherein the processor is configured to execute the one or more instructions to

compare an absolute value of the first relative speed with an absolute value of the second relative speed,

in response to a determination that the absolute value of the first relative speed is equal to or greater than the absolute value of the second relative speed, calculate the absolute speed of the measurement target, based on the first relative speed, the position of the first electronic device, and the position of the measurement target, and

in response to a determination that the absolute value of the first relative speed is smaller than the absolute value of the second relative speed, calculate the absolute speed of the measurement target, based on the second relative speed, the position of the second electronic device, and the position of the measurement target.

17 . A system for calculating a position of a measurement target, the system comprising:

a first electronic device at a first roadside base station of at least three roadside base stations, the first electronic device configured to

measure a first distance, which is a distance between the first electronic device and the measurement target, and a first relative speed, which is a relative speed of the measurement target with respect to the first electronic device, and

generate first measurement information including the first distance and the first relative speed;

a second electronic device at a second roadside base station of the at least three roadside base stations, the second electronic device configured to

measure a second distance, which is a distance between the second electronic device and the measurement target, and a second relative speed, which is a relative speed of the measurement target with respect to the second electronic device, and

generate second measurement information including the second distance and the second relative speed; and

a server configured to

receive measurement information from a plurality of roadside base stations, the plurality of roadside base stations including the at least three roadside base stations, the measurement information indicating respective distances between each of the at least three roadside base stations and the measurement target, the measurement information including the first measurement information and the second measurement information,

calculate the position of the measurement target and an absolute speed of the measurement target based on the first measurement information, the second measurement information, a position of the first electronic device, and a position of the second electronic device, the calculating based on a determination that the first roadside base station and the second roadside base station are a closest two roadside base stations to the measurement target among the plurality of roadside base stations, based on the measurement information received from the plurality of roadside base stations, and

transmit driving information to one or more vehicles based on the calculated position of the measurement target to cause the one or more vehicles to adjust navigation of the one or more vehicles.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (34)