# US 12,222,446 B2 · LiDAR device having a smart power management system and an operating method of the lidar device implementing the smart power management system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,222,446 B2 - Document ID: US12222446B2 - Status: Granted - Kind: B2 - Application number: 17/528,039 - Filed: 2021-11-16 - Published: 2022-05-19 - Granted: 2025-02-11 - Earliest claimed: 2020-11-17 - Assignees: SOS LAB Co., Ltd. - Applicants: SOS LAB Co., Ltd. - Inventors: Ji Seong Jeong; Chan M Lim; Yong Yi Lee; Dong Kyu Kim; Jun Hwan Jang - Web page: https://patentgrep.com/patent/US12222446B2 ## CPC - G01S 7/4815: {using multiple transmitters} - G01S 7/4816: {of receivers alone} - G01S 7/484: Transmitters - G01S 17/89: for mapping or imaging - G01S 17/931: of land vehicles - B60R 16/0231: {Circuits relating to the driving or the functioning of the vehicle (monitoring tyres B60C23/00; indicating overspeed B60K31/00; for dash boards B60K37/00, B60Q3/10; for indicating emergencies B60Q1/52; brake control systems B60T; registering or indicating the working of vehicles G07C5/00; measuring distance G01C, e.g. combinations of speed and distance G01C23/00; engine indicators G01L; measuring speed or acceleration G01P)} - G01S 7/4817: {relating to scanning} - 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 - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR ## Abstract A LiDAR device including a emitting unit configured to emit a laser, a detecting unit configured to detect the laser, and a controller configured to control the emitting unit and the detecting unit, wherein the controller is configured to operate the LiDAR device at in at least a first operation mode or a second operation mode in which power consumption per unit time is lower than that of the first operation mode, and wherein the controller is configured to switch an operation mode of the LiDAR device from the first operation mode to the second operation mode when the controller receives a first trigger signal from a first device, and switch the operation mode of the LiDAR device from the second operation mode to the first operation mode when the controller receives a second trigger signal from the first device. ## Claims ### Claim 1 A vehicle comprising: a vehicle body; a light detection and ranging (LiDAR) device configured to operate in a first operation mode and a second operation mode in which a power consumption per unit time is lower than a power consumption per unit time of the first operation mode; and a controller; wherein the controller is configured to: transmit a first trigger signal to the LiDAR device when a state of the vehicle is changed from a first state to a second state; and transmit a second trigger signal to the LiDAR device when the state of the vehicle is changed from the second state to the first state; wherein the LiDAR device is configured to: change an operation mode of the LiDAR device from the first operation mode to the second operation mode when the LiDAR device receives the first trigger signal; and change the operation mode of the LiDAR device from the second operation mode to the first operation mode when the LiDAR device receives the second trigger signal. ### Claim 2 (depends on 1) The vehicle of claim 1, wherein the first state is engine-on state and the second state is engine-off state. ### Claim 3 (depends on 1) The vehicle of claim 1, wherein the first state is driving state and the second state is stop state. ### Claim 4 (depends on 1) The vehicle of claim 1, wherein the first state is a state in which a driving speed of the vehicle exceeds a reference speed and the second state is a state in which the driving speed of the vehicle is less than the reference speed. ### Claim 5 (depends on 1) The vehicle of claim 1, wherein a resolution of a first frame data obtained from the LiDAR device in the first operation mode is higher than the resolution of a second frame data obtained from the LiDAR device in the second operation mode. ### Claim 6 (depends on 1) The vehicle of claim 1, wherein the controller is configured to: obtain a property for a first object based on a first frame data obtained from the LiDAR device when the LiDAR device operates in the first operation mode; and obtain a distance value for a second object based on a second frame data obtained from the LiDAR device when the LiDAR device operates in the second operation mode. ### Claim 7 (depends on 1) The vehicle of claim 1, wherein energy of laser emitted from the LiDAR device per unit time in the first operation mode is greater than energy of laser emitted from the LiDAR device per unit time in the second operation mode. ### Claim 8 A light detection and ranging (LiDAR) device disposed on a first device, comprising: an emitting unit configured to emit laser; a detecting unit configured to detect laser emitted from the emitting unit; and a controller, wherein the controller is configured to operate the LiDAR device in a first operation mode and a second operation mode in which a power consumption per unit time is lower than a power consumption per unit time of the first operation mode; and wherein the controller is configured to: change an operation mode of the LiDAR device from the first operation mode to the second operation mode when the controller receives a first trigger signal from the first device; and change the operation mode of the LiDAR device from the second operation mode to the first operation mode when the controller receives a second trigger signal from the first device.