Abstract: The present application relates to the field of beam scanning technology and provides a galvanometer motor and a LiDAR. The galvanometer motor includes a stator assembly, a rotor assembly, a tunneling magnetoresistance sensor, a first magnet, and a second magnet. The stator assembly includes a housing and a stator body, while the rotor assembly includes a rotating shaft, a rotor magnet, and an angle limiting member. The rotating shaft is rotatably mounted in the housing around a first shaft line, with a gap between the rotor magnet and the stator body. The rotor magnet rotates around the first shaft line under the magnetic field of the stator body. The tunneling magnetoresistance sensor can map the limited angles formed by the first angle and the second angle into finite position codes.

Abstract: The present disclosure provides a detection method, apparatus, and electronic device, relating to the field of LiDAR technology. The method includes: obtaining ambient information; determining a first signal processing mode for a receiver to process a current scanning received detection echo based on the ambient information; processing a received echo signal based on the first signal processing mode; and generating detection information based on the processed received echo signal.

Abstract: The present application provides a lidar receiving apparatus, a lidar system, a laser ranging method, a laser ranging controller, and a computer readable storage medium. The lidar receiving apparatus includes: a photodetector, which is configured to receive a reflected laser signal and to convert the reflected laser signal into a current signal when a bias voltage of the photodetector is greater than a breakdown voltage of the same; a ranging circuit, which is connected with the photodetector and configured to calculate distance data according to the current signal; and a power control circuit, which is connected with the photodetector and configured to control the bias voltage applied to the photodetector according to a predefined rule.

Abstract: Embodiments of this application disclose a laser diode drive circuit and a LiDAR. The laser diode drive circuit includes a laser diode and a charging and discharging circuit. A cathode of the laser diode is grounded. The charging and discharging circuit is in a one-to-one correspondence with the laser diode, and includes an energy storage element, a first switch element, and a second switch element. The energy storage element is connected to an anode of the laser diode via the first switch element, and the energy storage element is grounded via the first switch element and the second switch element in sequence.

Abstract: Embodiments of this application provides a sampling data processing method and related products for a LiDAR, including: sampling an echo to obtain sampling data; processing the sampling data sequentially to obtain point cloud data; inputting the point cloud data into the cache of the digital center module for storage; reading the point cloud data from the cache and generating at least one frame of point cloud data based on the point cloud data; fetching data from the module to be analyzed to obtain fetched data; switching the digital center module to input the fetched data into the cache of the digital center module for storage; and reading the fetched data from the cache and performing fault analysis based on the fetched data.

Abstract: The embodiments of the present application disclose an emitter, an emitting module, and a LiDAR. The emitter includes a laser, a driving circuit, a substrate, and a heat conduction member. The laser and the driving circuit are both mounted on the substrate, and the heat conduction member is connected to the substrate, with at least the portion of the substrate used for mounting the laser being in contact with the heat conduction member. Mounting the laser on the substrate and having at least the portion of the substrate used for mounting the laser in contact with the heat conduction member facilitates timely and efficient heat dissipation from the laser through the heat conduction member, improving the heat dissipation rate around the laser and avoiding local hot spots at the laser, thereby ensuring the normal operation of the laser.

Abstract: A LiDAR system is provided. The LiDAR system includes a first data transmission apparatus, a second data transmission apparatus, a rotator, and a central shaft. The first data transmission apparatus and the second data transmission apparatus are located in the LiDAR system. The rotator is connected with the central shaft through a bearing, the rotator is connected to a bearing rotor, and the central shaft is connected to a bearing stator. The first data transmission apparatus includes a first optical module and a second optical module. The second data transmission apparatus includes a third optical module, a coupling optical system, and a fourth optical module.

Abstract: A lidar is provided. The lidar includes a lidar body, where the lidar body includes an axis connecting portion, a base plate, a lens bracket, a connecting vertical plate, a counterweight piece, a laser emitter board, and a laser receiver board.

Abstract: This application discloses a LiDAR anti-interference method and apparatus, a storage medium, and a LiDAR. The method is applied to a LiDAR, and the LiDAR includes a laser emission array and a laser receiving array. The method includes determining at least two laser emission units to be turned on in a measurement period, controlling the at least two laser emission units to emit laser beams based on a preset rule, and controlling respectively corresponding laser receiving units of the at least two laser emission units to receive echo beams, to detect a target object. The at least two laser emission units to be turned on are in different laser emission groups, and the at least two laser emission units to be turned on satisfy a physical condition of no optical crosstalk.

Abstract: Embodiments of the present application provide a laser ranging method, device, and a LiDAR. The method includes: obtaining the quantity of light leading point cloud points in a first preset region in the current frame of point cloud, where the light leading point cloud points are point cloud points corresponding to echoes received by a receiver within a light leading period, and the light leading period is a period less than a first preset duration, starting from an emission moment of a laser beam corresponding to the light leading point cloud points; and adjusting the gain of the receiver within the light leading period to reduce the quantity of the light leading point cloud points.

Abstract: This application provides a radar data processing method, a terminal device, and a computer-readable storage medium. The method includes: obtaining radar data collected by a receiving area array; in response to the radar data being saturated, performing data fusion processing based on a floodlight distance value to obtain a fusion result; determining a distance value of a target object based on the fusion result; and correcting the distance value of the target object based on a distance between a flooding unit and the target object and a distance between a receiving unit and the target object.

Abstract: The present application is applicable to the technical field of a LiDAR, and provides a LiDAR control method, a terminal apparatus, and a computer-readable storage medium. The LiDAR control method includes the following steps: acquiring first echo data; when an oversaturated region is determined to exist according to the first echo data, controlling LiDAR to measure a scanning region according to a second preset scanning mode to obtain second echo data; performing data fusion processing based on the first echo data and the second echo data to obtain target data. The LiDAR is controlled to measure according to the first preset scanning mode and a second preset scanning mode, and then fusion is performed based on the measured first echo data and second echo data, thereby effectively eliminating a problem of signal crosstalk caused by too high reflection energy of an object with high reflectivity, and effectively improving measurement accuracy.

Abstract: This application provides a sensor, including a rotating component rotatably mounted to a base and configured to rotate about a central shaft and an optical component mounted on the rotating component. The optical component has an optical axis that is oblique with respect to the central shaft.

Abstract: This application provides a method and an electronic device for blind spot warning. The method includes: determining the blind spot of a vehicle during travel; identifying a traffic participant in the blind spot; dividing the blind spot to obtain multiple warning regions, where the multiple warning regions have different hazard levels; determining the warning region in which the traffic participant is located among the multiple warning regions; and performing a warning corresponding to the hazard level of the warning region where the traffic participant is located.

Abstract: A detection circuit of clock anomaly and method, a clock circuit, a chip, and a radar are provided. The detection circuit of clock anomaly includes: a first clock frequency determining unit, configured to determine a first clock frequency of a received first clock signal; a reference determining unit, configured to determine a reference corresponding to the first clock signal, where the reference is determined based on a second clock signal or a timestamp; and a clock anomaly detection unit, connected to the first clock frequency determining unit and the reference determining unit separately and configured to perform anomaly detection on the first clock signal based on the first clock frequency and the reference. This application can improve reliability of the clock signal, thereby improving personal safety and property safety of a user.

Abstract: This application discloses a LiDAR, an autonomous driving system and a movable device. The LiDAR includes a housing, a light transmitting plate, an emitting component, a receiving component, and a functional board. An emitting board of the emitting component is on one side of an emitting lens that is far away from the light transmitting plate. A receiving board of the receiving component is on one side of a receiving lens that is far away from the light transmitting plate. The functional board is between the emitting board and the emitting lens. The functional board avoids an optical transmission path between the emitting board and the emitting lens. The functional board is in contact with the housing. The heat dissipation efficiency of the LiDAR is improved.

Abstract: Embodiments of this application disclose a LiDAR, an autonomous driving system, and a mobile device. The LiDAR includes an emitter, a receiver, a beam splitter, a transceiver lens, a scanner, and an extinction module. Along a transmission path of detection light, the beam splitter is downstream of the emitter, the transceiver lens is downstream of the beam splitter, and the scanner is downstream of the transceiver lens. Along a transmission path of echo light, the beam splitter is upstream of the receiver, the transceiver lens is upstream of the beam splitter, and the scanner is upstream of the transceiver lens, the detection light and the echo light share the transceiver lens. The extinction module includes a first extinctor positioned at an outgoing end of the emitter, a second extinctor positioned at a receiving end of the receiver, and a third extinctor positioned between the transceiver lens and the scanner.

Abstract: The present application relates to a circuit, a method, and a radar for detecting ambient light. The circuit comprises: a photosensitive element, which is configured to convert a received light signal into a current signal; an electrical signal conditioning circuit, coupled to the photosensitive element, which is configured to convert the current signal into a voltage signal; a demodulation processing unit, coupled to the electrical signal conditioning circuit, which is configured to convert the voltage signal into a digital signal based on a voltage threshold; and a digital processing unit, coupled to the demodulation processing unit, which is configured to process the digital signal to obtain ambient light information.

Abstract: This application discloses a LiDAR anti-interference method and apparatus, a storage medium, and a LiDAR. The method is applied to a LiDAR, and the LiDAR includes a laser emission array and a laser receiving array. The method includes determining at least two laser emission units to be turned on in a measurement period, controlling the at least two laser emission units to emit laser beams based on a preset rule, and controlling respectively corresponding laser receiving units of the at least two laser emission units to receive echo beams, to detect a target object. The at least two laser emission units to be turned on are in different laser emission groups, and the at least two laser emission units to be turned on satisfy a physical condition of no optical crosstalk.

Abstract: The present application discloses an optical signal processing circuit for a Lidar. The optical signal processing circuit includes an optical processing circuit, a gain control circuit connected to the optical processing circuit, and a controller connected to the gain control circuit. The optical processing circuit includes an optical sensor and an amplification circuit. The optical sensor is configured to convert an optical signal to a photocurrent signal, and the amplification circuit is configured to convert and amplify the photocurrent signal to a voltage signal. The controller adjusts a gain of the optical processing circuit via the gain control circuit and based on an amplitude of the voltage signal.