KR102113668B1 - 전력 제어 방법, 거리 측정 모듈 및 전자 장치 - Google Patents
전력 제어 방법, 거리 측정 모듈 및 전자 장치 Download PDFInfo
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- KR102113668B1 KR102113668B1 KR1020187004057A KR20187004057A KR102113668B1 KR 102113668 B1 KR102113668 B1 KR 102113668B1 KR 1020187004057 A KR1020187004057 A KR 1020187004057A KR 20187004057 A KR20187004057 A KR 20187004057A KR 102113668 B1 KR102113668 B1 KR 102113668B1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/491—Details of non-pulse systems
- G01S7/4911—Transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
- G01S17/894—3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/484—Transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4868—Controlling received signal intensity or exposure of sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/491—Details of non-pulse systems
- G01S7/4912—Receivers
- G01S7/4918—Controlling received signal intensity, gain or exposure of sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52096—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging related to power management, e.g. saving power or prolonging life of electronic components
-
- G01S2007/4013—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
- G01S7/4013—Means for monitoring or calibrating of parts of a radar system of transmitters involving adjustment of the transmitted power
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measurement Of Optical Distance (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Studio Devices (AREA)
Abstract
Description
도 2는 본 발명의 실시예에 따른 전력 제어 방법에 대한 흐름도이다.
Claims (21)
- 전력 제어 방법으로서,
상기 전력 제어 방법은 발광 유닛을 포함하는 거리 측정 모듈에 적용되며, 상기 거리 측정 모듈은 휴대용 전자 기기 내에 배치되고,
상기 전력 제어 방법은,
상기 발광 유닛이 제1 시간에 제1 방출 전력으로 입사광을 방출하는 단계;
상기 입사광에 대응하는 반사광을 수광하는 단계;
상기 반사광에 따라 거리 측정 모듈과 표적 간의 거리를 결정하는 단계;
상기 반사광에 따라 이미지를 획득하는 단계;
상기 이미지에 대해 사람 얼굴 인식을 수행하고 인식 결과를 생성하는 단계; 및
상기 인식 결과 및 상기 거리에 따라 발광 유닛의 방출 전력을 조정하는 단계
를 포함하고,
상기 반사광에 따라 거리 측정 모듈과 표적 간의 거리를 결정하는 단계는,
상기 반사광에 따라 복수의 픽셀을 포함하는 이미지를 획득하는 단계;
상기 복수의 픽셀에 대응하는 복수의 픽셀 깊이 값을 획득하는 단계; 및
상기 복수의 픽셀 깊이 값에 따라 거리 측정 모듈과 표적 간의 거리를 결정하는 단계
를 포함하고,
상기 복수의 픽셀 깊이 값에 따라 거리 측정 모듈과 표적 간의 거리를 결정하는 단계는,
상기 복수의 픽셀 중 복수의 제1 픽셀에 대응하는 픽셀 수가 특정한 수보다 크면, 거리 측정 모듈과 표적 간의 거리가 제1 깊이 값이 되도록 결정하는 단계
를 포함하며,
각각의 제1 픽셀에 대응하는 픽셀 깊이 값은 제1 깊이 값보다 작은, 전력 제어 방법. - 제1항에 있어서,
상기 거리에 따라 발광 유닛의 방출 전력을 조정하는 단계는,
상기 거리가 특정 값보다 작으면 방출 전력이 제1 방출 전력보다 작거나 같게 되도록 조정하는 단계
를 포함하는, 전력 제어 방법. - 제1항에 있어서,
상기 발광 유닛이 제1 방출 전력으로 입사광을 방출하는 단계 전에,
주변 광을 수광하는 단계; 및
상기 주변 광에 따라 제1 방출 전력을 결정하는 단계
를 더 포함하는 전력 제어 방법. - 휴대용 전자 기기 내에 배치되는, 거리 측정 모듈로서,
제1 시간에 제1 방출 전력으로 입사광을 방출하는 발광 유닛;
상기 입사광에 대응하는 반사광을 수광하고, 상기 반사광에 따라 이미지를 획득하는 광 감지 유닛; 및
프로세싱 유닛
을 포함하고,
상기 프로세싱 유닛은 다음의 단계:
상기 반사광에 따라 거리 측정 모듈과 표적 간의 거리를 결정하는 단계;
상기 이미지에 대해 사람 얼굴 인식을 수행하고 인식 결과를 생성하는 단계; 및
상기 인식 결과 및 상기 거리에 따라 발광 유닛의 방출 전력을 조정하는 단계
를 실행하도록 구성되어 있고,
상기 광 감지 유닛은 상기 반사광에 따라 복수의 픽셀을 포함하는 이미지를 획득하고,
상기 프로세싱 유닛은 상기 복수의 픽셀에 대응하는 복수의 픽셀 깊이 값을 획득하고, 상기 복수의 픽셀 중 복수의 제1 픽셀에 대응하는 픽셀 수가 특정한 수보다 크면, 거리 측정 모듈과 표적 간의 거리가 제1 깊이 값이 되도록 결정하며, 각각의 제1 픽셀에 대응하는 픽셀 깊이 값은 제1 깊이 값보다 작은,
거리 측정 모듈. - 제4항에 있어서,
상기 프로세싱 유닛은 상기 거리가 특정 값보다 작으면 방출 전력이 제1 방출 전력보다 작거나 같게 되도록 조정하는, 거리 측정 모듈. - 제4항에 있어서,
상기 인식 결과가 상기 이미지에 사람 얼굴 이미지가 포함되어 있고 상기 거리가 특정 값보다 작음을 나타내면, 상기 프로세싱 유닛은 상기 방출 전력을 증가시키지 않는, 거리 측정 모듈. - 제4항에 있어서,
상기 광 감지 유닛은 주변 광을 수광하고, 상기 프로세싱 유닛은 상기 주변 광에 따라 제1 방출 전력을 결정하는, 거리 측정 모듈. - 삭제
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Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/099119 WO2019037105A1 (zh) | 2017-08-25 | 2017-08-25 | 功率控制方法、测距模块及电子装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20190033462A KR20190033462A (ko) | 2019-03-29 |
| KR102113668B1 true KR102113668B1 (ko) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020187004057A Expired - Fee Related KR102113668B1 (ko) | 2017-08-25 | 2017-08-25 | 전력 제어 방법, 거리 측정 모듈 및 전자 장치 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10754031B2 (ko) |
| EP (1) | EP3467542A4 (ko) |
| KR (1) | KR102113668B1 (ko) |
| CN (1) | CN109804271B (ko) |
| WO (1) | WO2019037105A1 (ko) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11510297B2 (en) * | 2018-12-24 | 2022-11-22 | Beijing Voyager Technology Co., Ltd. | Adaptive power control for pulsed laser diodes |
| WO2020257969A1 (zh) * | 2019-06-24 | 2020-12-30 | 深圳市汇顶科技股份有限公司 | 结构光投射装置、结构光投射方法及三维测量系统 |
| CN110995992B (zh) * | 2019-12-04 | 2021-04-06 | 深圳传音控股股份有限公司 | 补光装置、补光装置的控制方法及计算机存储介质 |
| CN111025277B (zh) * | 2019-12-25 | 2023-05-30 | 青岛海信电子设备股份有限公司 | Uwb测距系统和uwb测距系统的控制方法 |
| CN113223209A (zh) * | 2020-01-20 | 2021-08-06 | 深圳绿米联创科技有限公司 | 门锁控制方法、装置、电子设备及存储介质 |
| CN111751833A (zh) * | 2020-06-24 | 2020-10-09 | 深圳市汇顶科技股份有限公司 | 一种打光以及反射光数据获取方法、装置 |
| CN112073708B (zh) * | 2020-09-17 | 2022-08-09 | 君恒新信息科技(深圳)有限公司 | 一种tof相机光发射模组的功率控制方法及设备 |
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2017
- 2017-08-25 WO PCT/CN2017/099119 patent/WO2019037105A1/zh not_active Ceased
- 2017-08-25 CN CN201780001023.6A patent/CN109804271B/zh active Active
- 2017-08-25 EP EP17826118.6A patent/EP3467542A4/en not_active Withdrawn
- 2017-08-25 KR KR1020187004057A patent/KR102113668B1/ko not_active Expired - Fee Related
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2018
- 2018-01-12 US US15/869,046 patent/US10754031B2/en not_active Expired - Fee Related
Patent Citations (6)
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| US20090273770A1 (en) * | 2008-04-30 | 2009-11-05 | Honeywell International Inc. | Systems and methods for safe laser imaging, detection and ranging (lidar) operation |
| JP2011017666A (ja) * | 2009-07-10 | 2011-01-27 | Nippon Signal Co Ltd:The | 光測距装置 |
| US20160198091A1 (en) * | 2013-09-03 | 2016-07-07 | Seeing Machines Limited | Low power eye tracking system and method |
| JP2016532396A (ja) * | 2013-09-03 | 2016-10-13 | シーイング マシーンズ リミテッド | 低電力眼追跡システムおよび眼追跡方法 |
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| US20180341009A1 (en) * | 2016-06-23 | 2018-11-29 | Apple Inc. | Multi-range time of flight sensing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109804271B (zh) | 2021-07-23 |
| KR20190033462A (ko) | 2019-03-29 |
| US20190064352A1 (en) | 2019-02-28 |
| EP3467542A1 (en) | 2019-04-10 |
| EP3467542A4 (en) | 2019-04-10 |
| WO2019037105A1 (zh) | 2019-02-28 |
| CN109804271A (zh) | 2019-05-24 |
| US10754031B2 (en) | 2020-08-25 |
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