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US-12625252-B2 - Calculating the position of a measurement target using multiple measuring devices

US12625252B2US 12625252 B2US12625252 B2US 12625252B2US-12625252-B2

Abstract

An operating method of a server for calculating a position of a measurement target includes receiving first measurement information including a result of measuring the measurement target by a first electronic device, receiving second measurement information including a result of measuring the measurement target by a second electronic device, and calculating the position of the measurement target based on the first measurement information and the second measurement information.

Inventors

  • Seong-Hwan HYUN
  • Seong-Cheol Kim
  • Jihye Kim

Assignees

  • SAMSUNG ELECTRONICS CO., LTD.

Dates

Publication Date
20260512
Application Date
20230707
Priority Date
20220712

Claims (17)

  1. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is based on and claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2022-0085880, filed on Jul. 12, 2022 in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety. BACKGROUND The inventive concepts relate to operating methods of servers, and more particularly, to operating methods of servers, which calculate a position of a measurement target, based on a measured result of the measurement target based on using a first electronic device and a second electronic device. As interest in autonomous driving increases, interest in technologies that enable autonomous driving is increasing. For autonomous driving, it is necessary to develop a technology for recognizing the external environment of a vehicle, and a technology for adjusting an operation, such as acceleration, stop, and rotation of the vehicle, and for adjusting a driving path based on recognized information. Among the technologies, a technology for recognizing the external environment of the vehicle is considered important because the technology becomes the basis for the autonomous driving. SUMMARY Some example embodiments of the inventive concepts provide an operating method of a server capable of calculating a position and speed of a vehicle on the road. According to some example embodiments of the inventive concepts, an operating method of a server to calculate a position of a measurement target may include receiving first measurement information including a result of measuring the measurement target by a first electronic device, receiving second measurement information including a result of measuring the measurement target by a second electronic device, and calculating the position of the measurement target based on the first measurement information and the second measurement information. Such a method may enable accurate measurement of the position and speed of vehicles on the road, and which may enable the speed of the vehicle in autonomous driving, the spacing with the adjacent vehicles, or the like to be adjusted more quickly and/or with greater accuracy, with reduced consumption of computing resources, with reduced consumption of electrical power, or the like. According to some example embodiments of the inventive concepts, a server may include 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 may be configured to transmit a measurement request for a measurement target to the first electronic device and the second electronic device, receive first measurement information including a result of measuring the measurement target by the first electronic device, and receive second measurement information including a result of measuring the measurement target by the second electronic device, and wherein the processor may be configured to execute the one or more instructions to calculate a position of the measurement target based on the first measurement information and the second measurement information. According to some example embodiments of the inventive concepts, a system for calculating a position of a measurement target may include a 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, the first electronic device configured to generate first measurement information including the first distance and the first relative speed, a 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, the second electronic device configured to generate second measurement information including the second distance and the second relative speed, and a server configured to receive the first measurement information and the second measurement information, the server configured to calculate a position of the measurement target and an absolute speed of the measurement target based on the first measurement information and the second measurement information. BRIEF DESCRIPTION OF THE DRAWINGS Some example embodiments will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which: FIG. 1 is a diagram of a system according to some example embodiments; FIG. 2 is a block diagram of a configuration of a system and a server included in the system, according to some example embodiments; FIG. 3 is a flowchart of an operating metho