Abstract: Embodiments of the present disclosure provides a light detection method, a light detection device, and a mobile platform with improved accuracy of light detection. The method includes obtaining the environment parameter for performing light detection; determining a working mode for performing light detection based on the obtained environment parameter, different working modes corresponding to different working parameters; and performing light detection based on the determined working mode. The light detection is configured to calculate a distance between a light detection device and a reflector based on a transmitted pulse sequence and a reflected pulse sequence reflected by the reflector.

Abstract: A laser-ranging device includes an emitter, an optical assembly, a detecter, and a drive system. The emitter is configured to emit a laser pulse sequence. The an optical assembly includes a collimating lens and a converging lens. The collimating lens is configured to collimate the laser pulse sequence emitted by the emitter and emit the laser pulse sequence. The converging lens is configured to converge at least a part of return light reflected by a to-be-detected object. The detecter is configured to receive light converged by the converging lens, convert the light into an electrical signal, and determine a distance between the to-be-detected object and the laser-ranging device according to the electrical signal. The drive system is configured to drive the optical assembly to move in a plane perpendicular to an optical axis of the laser pulse sequence and/or along an optical axis direction of the optical axis.

Abstract: The present disclosure provides a motor state monitoring device. The motor state monitoring device includes a receiver disposed separately from a motor and configured to receive a measured signal emitted by the motor without contact; and a signal processing unit connected to the receiver and configured to determine a state of the motor based on the measured signal, and generate a state signal indicating the state of the motor.

Abstract: A novel imaging system is provided for capturing imaging data. According to the disclosed embodiments, the imaging system comprises one or more cameras configured to capture the same scene within each camera's field of view. The imaging system also includes a plurality of bandpass filters that may be positioned in front of one or more cameras. Each bandpass filter may allow the transmission of incident electromagnetic signals between different pairs of first and second wavelengths. Accordingly, when the bandpass filters are positioned in front of the one or more cameras, each camera captures a different spectral image, i.e., containing only certain frequency components of the same scene being imaged in the cameras. The bandpass filters may be selectively aligned with one or more cameras by rotating and/or translating the filters relative to the cameras' positions in the imaging system.

Abstract: The present disclosure provides a distance detection device. The distance detection device includes a light source configured to emit pulse light beams sequentially; and a scanning module including a first optical module, a second optical module, and drivers. The first optical module and the second optical module are sequentially positioned on an optical path of the light beams emitted by the light source, the drivers drive the first optical module and the second optical module to move to sequentially project the light beams emitted by the light source to different directions and form a strip-shaped scanning range after being emitted from the scanning module.

Abstract: The present disclosure provides a distance detection device. The distance detection device includes a housing; and a plurality of distance measuring assemblies disposed in the housing. Two adjacent distance measuring assemblies have overlap field of views. Each distance measuring assembly is configured to measure a distance from an object to be detected in the corresponding field of view to the distance detection device.

Abstract: A laser distance measurement device includes a transmission circuit configured to emit at least two laser pulse sequences having different emission paths at different times, a receiving circuit configured to receive the at least two laser pulse sequences reflected by an object and perform photoelectric conversion on the at least two laser pulse sequences to obtain at least two electrical signals, a sampling circuit configured to sample the at least two electrical signals to obtain sampling results, and a processing circuit configured to determine a distance to the object to be detected according to the sampling results. Drive signals in the transmission circuit that correspond to the at least two laser pulse sequences share a device of the transmission circuit, and/or the at least two electrical signals share a device of the receiving circuit, a device of the sampling circuit, and/or a device of the processing circuit.

Abstract: Laser ranging method and apparatus are provided. The method includes controlling a target component to switch from a first state to a second state when the target component in a laser ranging apparatus is idle. Power consumption of the target component in the second state is less than power consumption in the first state. The laser ranging apparatus includes a plurality of components that include: at least one emitting circuit, at least one receiving circuit, at least one sampling circuit, and at least one operation circuit. The target component is at least one device in at least one of the components in the laser ranging apparatus.

Abstract: The present disclosure provides a laser diode package module. The laser diode package module includes a substrate including a first surface; a cover disposed on the first surface of the substrate; an accommodation space formed between the substrate and the cover; a laser diode die disposed in the accommodation space; and a reflective surface disposed in the accommodation space for outputting light of the laser diode die reflected by the reflective surface and transmitted through a light-transmitting area. The light-transmitting area is at least partially disposed on a surface of the cover opposite the substrate.

Abstract: Systems and techniques associated light detection and ranging (LIDAR) applications are described. In one representative aspect, techniques can be used to implement a packaged semi-conductive apparatus is disclosed. The apparatus includes a substrate; a diode die carried by the substrate and positioned to emit an electromagnetic energy beam; and a shell coupled to the substrate to enclose the diode die. The shell includes an opening or a transparent area to allow the electromagnetic energy beam emitted from the diode die to pass through the shell.

Abstract: A method of monitoring a system status of a LIDAR includes obtaining M pieces of present status information corresponding to N devices of the LIDAR, determining system status information of the LIDAR according to the M pieces of present status information, and outputting the system status information of the LIDAR and the M pieces of present status information through a preset field. Each of the N devices corresponds to at least one of the M pieces of present status information. N is an integer greater than or equal to 2, and M is an integer greater than or equal to N.

Abstract: A novel imaging system is provided for capturing imaging data. According to the disclosed embodiments, the imaging system comprises one or more cameras configured to capture the same scene within each camera's field of view. The imaging system also includes a plurality of bandpass filters that may be positioned in front of one or more cameras. Each bandpass filter may allow the transmission of incident electromagnetic signals between different pairs of first and second wavelengths. Accordingly, when the bandpass filters are positioned in front of the one or more cameras, each camera captures a different spectral image, i.e., containing only certain frequency components of the same scene being imaged in the cameras. The bandpass filters may be selectively aligned with one or more cameras by rotating and/or translating the filters relative to the cameras' positions in the imaging system.

Abstract: Systems and techniques associated light detection and ranging (LIDAR) applications are described. In one representative aspect, techniques can be used to implement a packaged semi-conductive apparatus is disclosed. The apparatus includes a substrate; a diode die carried by the substrate and positioned to emit an electromagnetic energy beam; and a shell coupled to the substrate to enclose the diode die. The shell includes an opening or a transparent area to allow the electromagnetic energy beam emitted from the diode die to pass through the shell.

Abstract: The present disclosure provides a laser diode module. The laser diode module includes a substrate including a first surface and a second surface opposite to each other; a cover disposed on the first surface of the substrate, and an accommodation space being formed between the substrate and the cover; and a laser diode die disposed in the accommodation space.

Abstract: Systems and techniques associated light detection and ranging (LIDAR) applications are described. In one representative aspect, techniques can be used to implement a sensor device. The sensor device includes an electromagnetic energy emitter module positioned to emit an electromagnetic energy beam directed to one or more objects, a beam steering module positioned to receive at least a portion of the electromagnetic energy beam that is reflected from the one or more objects, and an array of receiver units positioned to convert the portion of the electromagnetic energy beam into multiple electrical signals. The beam steering module is further positioned to direct the portion of the electromagnetic energy beam to the array of receiver units, with individual receiver units positioned to detect multiple optical signals from the portion of the electromagnetic energy beam and convert the multiple optical signals into electrical signals.

Abstract: This application discloses distance detection apparatuses. The distance detection apparatus includes a light source, a transmitting and receiving lens, a detector, and an optical path change element. The light source is to emit a beam. The transmitting and receiving lens is to collimate the beam emitted by the light source, and converge at least a part of return light of the beam reflected by a to-be-detected object. The detector is placed with the light source on a same side of the transmitting and receiving lens, to convert at least a part of return light that passes through the transmitting and receiving lens into an electrical signal. The optical path change element is to change an optical path of the beam emitted by the light source or the return light that passes through the transmitting and receiving lens.

Abstract: An integrated circuit includes a transmitter, a signal input channel, a signal sampling circuit, and an analog-to-digital conversion circuit. The transmitter is configured to transmit a ranging signal. The signal input channel is configured to transmit an analog electrical signal corresponding to an echo signal of the ranging signal. The signal sampling circuit includes a switched capacitor array and is configured to sample the analog electrical signal and store a sampled signal of the analog electrical signal. The analog-to-digital conversion circuit is configured to perform analog-to-digital conversion on the sampled signal stored in the signal sampling circuit to generate a digital electrical signal indicating reception time of the echo signal.

Abstract: The present disclosure provides a ranging system. The system includes a first transmitter configured to emit a first optical signal to an object; a receiver corresponding to the first transmitter, configured to receive a reflected signal corresponding to the first optical signal; a second transmitter configured to emit a second optical signal to the object; a receiver corresponding to the second transmitter, configured to receive a reflected signal corresponding to the second optical signal; a controller configured to control the first transmitter to emit the first optical signal and the second transmitter to emit the second optical signal; and a measuring device configured to acquire indication information based on the received reflected signal corresponding to the first optical signal and the reflected signal corresponding to the second optical signal, and to determine a distance of the object based on the indication information.

Abstract: A sensor system includes an optical aperture, a light source configured to generate a light pulse along a first optical path, a reflective surface configured to reflect the light pulse from the first optical path to a second optical path for passing through the optical aperture, a beam steering device positioned in the optical aperture and configured to steer the light pulse along different directions to one or more objects in an angle of view of the sensor system, a detector configured to receive a reflected light pulse and convert the reflected light pulse into an electrical signal, the reflected light pulse being reflected back from the one or more objects and passed through the beam steer device, and a spatial filtering device positioned between the beam steering device and the detector to block undesirable light in both the light pulse and the reflected light pulse.

Abstract: A sensor system can comprise a light source generating a light pulse that is collimated, and a plurality of optical elements. Each of the plurality of optical elements is configured to rotate independently about an axis that is substantially common, and the plurality of optical elements operate to collectively direct the light pulse to one or more objects in an angle of view of the sensor system. Furthermore, the sensor system can comprise a detector configured to receive, via the plurality of optical elements, at least a portion of photon energy of the light pulse that is reflected back from the one or more objects in the angle of view of the sensor system, and convert the received photon energy into at least one electrical signal.