WO2008008970A2 - High definition lidar system - Google Patents
High definition lidar system Download PDFInfo
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- WO2008008970A2 WO2008008970A2 PCT/US2007/073490 US2007073490W WO2008008970A2 WO 2008008970 A2 WO2008008970 A2 WO 2008008970A2 US 2007073490 W US2007073490 W US 2007073490W WO 2008008970 A2 WO2008008970 A2 WO 2008008970A2
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- Prior art keywords
- photon
- detectors
- transmitters
- rotary
- housing
- Prior art date
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Classifications
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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
- 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
- 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
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
-
- 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
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4813—Housing arrangements
-
- 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
- G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0428—Electrical excitation ; Circuits therefor for applying pulses to the laser
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
- H01S5/06216—Pulse modulation or generation
Definitions
- each distance measurement can be considered a pixel, and a collection of pixels emitted and captured in rapid succession (called a "point cloud”) can be rendered as an image or analyzed for other reasons such as detecting obstacles.
- Viewers that render these point clouds can manipulate the view to give the appearance of a 3-D image. While the data that comes back is lacking color or other characteristics, different schemes can be used to depict the distance measurements that allow the rendering device to show the 3-D image as if it were captured by a live action camera.
- Such devices are often used in industrial applications, as shown in FIGURE 2. Note the scan lines emitting from the unit - the spinning mirror allows the single laser emitter/detector assembly to be aimed along this plane via the use of the rotating mirror.
- FIGURE 3 shows a 2-D scanner employing a single laser emitter/detector pair and a rotating mirror mounted on a gimbal that "nods" the unit up and down, and rotates it back and forth in order to increase field of view.
- a prism that "divides” the laser pulse into multiple "layers,” with each layer having a slightly different vertical angle. This simulates the nodding effect described above but with no need for actuation of the sensor itself.
- the main premise is a single laser emitter/detector combination, where the light path is somehow altered to achieve a broader field of view than a single sensor can achieve.
- the device is inherently limited to the number of pixels it can generate due to the limitation of how many pulses per second are possible from a single laser. Any alteration of the laser's path, whether it is by mirror, prism, or actuation of the device, causes the point cloud to be less dense, but cover a broader area.
- the goal for sensors of this nature is to maximize the number of pixels to provide a point cloud that covers a broad field of view yet is as dense as possible.
- FIGURE 4 shows the framework for the detector array of a flash lidar unit.
- 3-D point cloud systems exist in several configurations, the needs for autonomous vehicle navigation place unrealistic demands on current systems. For example, there are numerous systems that take excellent pictures, but take several minutes to collect a single image. Such systems are unsuitable for highway use. There are also flash systems that have excellent update rate but lack field of view lack and good distance performance. There are single beam systems that can provide useful information but do not work well with objects that are too small and fall outside the unit's field of view. In reality, it is necessary to see everywhere around the vehicle, almost a full 360 degrees, in order to safely navigate today's highways. In addition, it is necessary to have a minimum of delay between the actions happening in the real world and the imaging / reaction to it.
- the present invention provides a lidar-based 3-D point cloud measuring system.
- An example system includes a base, a housing, a plurality of photon transmitters and photon detectors contained within the housing, a rotary motor that rotates the housing about the base, and a communication component that allows transmission of signals generated by the photon detectors to external components.
- the rotary component includes a rotary power coupling configured to provide power from an external source to the rotary motor, the photon transmitters, and the photon detectors, as well as signal in and out of the unit.
- the photon transmitters and detectors of each pair are held in a fixed relationship with each other.
- a single detector is "shared" among several lasers by focusing several detection regions onto a single detector, or by using a single, large detector.
- a single laser beam is divided into several smaller beams, with each smaller beam focused onto its own detector.
- the communication component comprises at least one of a rotary coupling device or a wireless communication device.
- the present invention provides a more compact and rugged unit for gathering 3-D point cloud information.
- the present invention provides the ability to discern multiple returns.
- FIGURES 1-4 illustrate inventions formed according to the prior art
- FIGURE 5 is a Lidar Terrain mapping and obstacle detection system shown at rest
- FIGURE 6 is the Lidar Terrain mapping and obstacle detection system shown in operation at 300 RPM;
- FIGURE 7 is a perspective view of the present invention mounted to a vehicle
- FIGURES 8A and B illustrate components of an auto braking and auto steering components
- FIGURES 9 and 10 illustrate circuits for performing data acquisition and auto vehicle control
- FIGURES 11 and 12 illustrate components of an auto vehicle operating system
- FIGURES 13-22 illustrate various views of a scanning device formed in accordance with an embodiment of the present invention
- FIGURES 23A and B illustrate various circuits for driving laser diodes
- FIGURE 24 illustrates example pulses generated for the laser diode
- FIGURES 25-26 illustrate results of operation of the circuit from FIGURE 23 A.
- FIGURES 5-12 illustrate a Laser Imaging Detection and Ranging (Lidar) terrain mapping and obstacle detection system employed as an autonomous sensor for a vehicle.
- the Lidar system includes 8 assemblies of 8 lasers each as shown in FIGURE 5 or 2 assemblies of 32 lasers each forming a 64-element Lidar system as shown in FIGURES 13-26.
- the system has a 360-degree horizontal field of view (FOV) and a 26.8-degree vertical FOV.
- the system is typically mounted on the top center of a vehicle, giving it a clear view in all directions, and rotates at a rate of up to 20 Hz, thereby providing a high point cloud refresh rate, such high rate being necessary for autonomous navigation at higher speeds.
- the system can collect approximately 1 million time of flight (TOF) distance points per second.
- TOF time of flight
- the system provides the unique combination of 360 degree FOV, high point cloud density, and high refresh rate.
- the standard deviation of TOF measurements is equal to or less than 5 cm.
- the Lidar system has an inertial navigation system (INS) sensor system mounted on it to report exact pitch and roll of the unit that is used by navigational computers to correct for these deviations.
- INS inertial navigation system
- the unit generates its own light and uses a proprietary filter to reject sunlight, so it works well under all lighting and most weather conditions.
- a dynamic power feature allows the system to increase the intensity of the laser emitters if a clear terrain reflection is not obtained by photo detectors (whether due to reflective surface, weather, or other reasons), and to reduce power to the laser emitters for safety reasons if a strong reflection signal is detected by photo detectors.
- DSP digital signal processor
- a direct benefit of this feature is that the Lidar system is capable of seeing through fog and heavy rain by increasing laser power dynamically and ignoring early reflections.
- the unit also has the capability to receive and decipher multiple returns from a single laser emission through digitization and analysis of the waveform generated by the detector as the signal generated from the emitter returns.
- the Lidar system sends data in the form of range and intensity information via Ethernet output (or similar output) to a master navigational system.
- the range data is converted into x and y coordinates and a height value.
- the height value is corrected for the vehicle's pitch and roll so the resulting map is with reference to the horizontal plane of the vehicle.
- the map is then "moved” in concert with the vehicle's forward or turning motion.
- the sensor's input is cumulative and forms an ultra-high-density profile map of the surrounding environment.
- This highly detailed terrain map is then used to calculate obstacle avoidance vectors if required and, as importantly, determine the maximum allowable speed given the terrain ahead.
- the Lidar system identifies of size and distance of objects in view, including the vertical position and contour of a road surface.
- the anticipated offset of the vehicle from a straight, level path, either vertical or horizontal, at different distances is translated into the G-force that the vehicle will be subject to when following the proposed path at the current speed. That information can be used to determine the maximum speed that the vehicle should be traveling, and acceleration or braking commands are issued accordingly.
- the software seeks the best available road surface (and thus the best possible speed) still within the boundaries of a global positioning system (GPS) waypoint being traversed.
- GPS global positioning system
- the system shown in FIGURES 5-8 includes 64 emitter/detector (i.e. laser diode/photo diode) pairs divided into eight groups of eight.
- the system shown in FIGURES 13-24 also includes 64 emitter/detector pairs, but in a configuration of 2 assemblies of 32 pairs. It is also possible to "share" a single detector among several lasers by focusing several detection regions onto a single detector, or by using a single, large detector. By firing a single laser at a time, there would be no ambiguity as to which laser is responsible for a return signal. Conversely, one could also subdivide a single laser beam into several smaller beams. Each beam would be focused onto its own detector. In any event, such systems are still considered emitter-detector pairs.
- the laser diode is preferably an OSRAM 905nm emitter, and the photo diode is preferably an Avalanche variety, but other types can be used.
- the lenses are preferably UV treated to block sunlight.
- Each pair is physically aligned in 1/3° increments, ranging from above horizontal (aligned at 500 feet in front of the vehicle) to approximately -24° (aligned to 20 feet in front of the vehicle).
- Each of the emitter/detector pairs are controlled by one or more DSPs, which determines when they will fire, determines the intensity of the firing based on the previous return, records the time-of-flight, calculates height data based time-of-flight and angular alignment of each pair. Results, including multiple returns if any, are transmitted via Ethernet to the master navigational computer via a rotary coupling.
- Another advantage of firing only a small number of lasers at a time is the ability to share, or multiplex, the detection circuitry among several detectors. Since the detection circuitry consists of high speed A-D 's, such as those made by National Semiconductor, considerable cost savings can be had by minimizing the use of these expensive components.
- the detectors are power cycled, such that only the desired detector is powered up at any one time. Then the signals can simply be diode-ored together to obtain the desired multiplexing.
- An additional benefit of power-cycling the detectors is that total system power consumption is reduced, and the detectors therefore run cooler and are therefore more sensitive.
- a simple DC motor controller driving a high reliability brushed motor controls the rotation of the emitter/detectors.
- a rotary encoder feeds rotational position to the DSPs that use the position data to determine firing sequence. Software and physical failsafes ensure that no firing takes place until the system is rotating at a minimum RPM.
- the navigational system uses Dual GPS receivers.
- the first is a Navcom 2050G using the Starfire subscription service and the second is a Novatel ProPak-LB receiver using the Omnistar subscription service.
- These subscription services typically deliver 2-inch accuracy under full sky-in-view conditions when operating in dual-differential mode. Any high precision GPS system could be used.
- the GPS receivers are used to correct the errors in the INS.
- the INS includes gyros, such as fiber optic gyros (FOG).
- FOG fiber optic gyros
- Vehicle control is accomplished through the actuation of 2 20 HP brushless motors for brake and steering respectively (see FIGURE 8A, B), controlled by Texas Instruments C2400 DSP chips.
- the acceleration is accomplished electronically by tying into the dual voltage acceleration system of the vehicle.
- the present invention can be retrofitted on virtually any vehicle - land, air, sea, or space vehicles.
- FIGURE 9 illustrates an example of the circuit components within a rotating head unit.
- the rotating head unit includes multiple detector and emitter circuits each having its own processor.
- the data produced by each circuit is output to external components via a rotary coupling.
- Other data transmission techniques may be used, such as wireless transmission via any of a number of different wireless protocols.
- FIGURE 10 shows the key navigational aspects of a system 50 and how they interconnect.
- the terrain map as generated from the Lidar terrain-mapping system (not shown) is fed via a single channel high-speed connection to a serial-to- parallel converter 52, which then populates a FIFO memory array 54 (later embodiments transfer information via an ETHERNET connection).
- a DSP 60 then receives the Lidar information from the FIFO array 54 along with information from two GPSs, two INSs, FOG Gyro, Odometer, and remote kill switch. This data is evaluated to decide the vehicle's path followed by serial commands issued to control the vehicle (note the steering, brake, throttle, and siren outputs).
- the steering and brake motors are controlled by DSPs 62, 64, and the acceleration is controlled through an electronic interface via a custom interface board.
- the DSP 60 also controls a video display 68 that allows viewing of the Lidar image for observation and debugging purposes.
- a small footprint is achieved through the use of embedded DSP technology. All PC boards for decision making, sensing, motor control and navigational data are proprietary, designed exclusively for this purpose, and fit in a single motherboard/daughterboard case. All major navigational components fit in a box mounted on the roof of the truck cab (shown in FIGURES 7 and 11). The only other modifications to the vehicle are a steering motor integrated with the steering mechanism in the engine compartment, a brake motor that sits on the floor of the cab, and the acceleration interface (in this case electronic). [0045] The result of the preferred embodiment design is a truck that is street legal and that affords full passenger comforts even while in autonomous mode. The entirety of system testing is performed while riding inside the vehicle and actuating three switches for gas, steering and brake over the driver's head, shown in FIGURE 12.
- the present invention performs at a frame rate that permits highspeed navigation, provides recognition of both positive and negative obstacles, provides exceptional point cloud density, provides full 360 degree HFOV, provides broad VFOV, and provides high accuracy rates.
- FIGURE 13 illustrates a perspective view of a 64 emitter/detector pair lidar component 150.
- the component 150 includes a housing 152 that is opened on one side for receiving a first Lidar system 154 located above a second Lidar system 156.
- the second Lidar system 156 is positioned to have line of sight with a greater angle relative to horizontal than the first Lidar system 154.
- the housing 152 is mounted over a base housing section 158.
- the section 158 includes a magnetic rotor 159 and stator 160.
- a rotary coupling 161 such as a three-conductor Mercotac model 305, passes through the center of the section 158 and the rotor 159. The three conductors facilitated by the rotary coupling are power, signal, and ground.
- a bearing 162 mounts on the rotary coupling 161.
- a rotary encoder 163 has one part mounted on the rotary coupling 161 and another part mounted on the base section 158 of the housing 152.
- the rotary encoder 163, such as a U.S. Digital Model number E6S-1000-750-I-PKG1 provides information regarding to rotary position of the housing 152.
- the magnetic rotor 159 and stator 160 cause rotary motion of the base section 158 and thus the housing 152 about the rotary coupling 161.
- FIGURE 16 illustrates a perspective view of the first Lidar system 14.
- the Lidar system 154 includes a face section that has two cavities 174 for mounting emitter lenses and one larger cavity 170 for mounting the single detector lens.
- FIGURE 22 behind each of the lenses in the cavity 174, are 16 laser emitters organized relatively horizontally, thereby combining for 32 total emitters.
- Behind the lens of the cavity 170 are 32 detectors that are positioned within a tube 176 of the unit 154.
- the second lidar unit 156 is somewhat comparable to the first Lidar system 154, but includes a shorter tube 178 and has a downward looking pitch angle.
- FIGURE 18 illustrates a rearview of the second Lidar system 156.
- Each emitter package 180 includes 16 distinct emitters 188 (per side). Each emitter 188 of an emitter unit 180 is positioned within unit 196 and of laser bracket 195 (see FIGURES 19 and 20). Each emitter is aligned to the corresponding receiver on the laser detector board 166 than attached with adhesive to each emitter and to bracket laser unit 196 and bracket block strap 195.
- FIGURES 23A and B illustrate circuits used for controlling the firing of a laser diode.
- the DSP sends a charge/on signal to a FET 200, thereby charging an inductor 204, which in turn charges a capacitor 206, which in turn causes a laser 210 to fire.
- the DSP turns off the FET 200 after a predetermined period of time as previously determined by return intensity measurements from the last pulse.
- the charging pulse is on for ⁇ 5 microseconds and the firing pulse is on for ⁇ 20 nanoseconds, variable power laser diode firing circuit. It can be seen that the energy stored in the inductor is Vi * L * I ⁇ 2.
- the DSP can use a simple algorithm to predict the proper amount of voltage in the capacitor. For example, if the return pulse is Vi as large as desirable, from a noise and measurement accuracy point of view, then the DSP simple charges the inductor for twice as long for the next pulse. Of course, such a system cannot see into the future, so it is not always possible to get the perfect return intensity every time. Nevertheless, the technique works well enough most of the time for the system to benefit from technique.
- FIGURE 23B includes two FETs.
- FETl When FETl is on during a charging pulse (FIGURE 24), an inductor 240 charges a capacitor 242.
- FET2 When the FET2 is on during the firing pulse (see FIGURE 24), FET2 causes the capacitor 242 to discharge thereby firing a laser diode 244.
- FIGURE 25 illustrates current and luminance output of the circuits of FIGURES 23 A and B.
- FIGURE 26 shows digitized sensed values at the photo diode of the receiving side.
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Abstract
A lidar-based 3-D point cloud measuring system (150) and method. An example system includes a base (158), a housing (152), a plurality of photon transmitters and photon detectors contained within the housing, a rotary motor that rotates the housing about the base, and a communication component that allows transmission of signals generated by the photon detectors to external components. The rotary component includes a rotary power coupling configured to provide power from an external source to the rotary motor, the photon transmitters, and the photon detectors. In another embodiment, the photon transmitters and detectors of each pair are held in a fixed relationship with each other. In yet another embodiment, a single detector is 'shared1 among several lasers by focusing several detection regions onto a single detector, or by using a single, large detector.
Description
HIGH DEFINITION LIDAR SYSTEM
BACKGROUND OF THE INVENTION
[0001] The use of a pulse of light to measure distance is well known. As is commonly used in devices such as a police speed detector, the basic concept is that of pulsing a laser emitter, which causes a burst of light to be emitted, usually focused through a lens or lens assembly. Then, the time it takes for that pulse of light to return to a detector mounted near the emitter is measured, and a distance can then be derived from that measurement with high accuracy.
[0002] When multiple pulses are emitted in rapid succession, and the direction of those emissions is somehow sequentially varied, each distance measurement can be considered a pixel, and a collection of pixels emitted and captured in rapid succession (called a "point cloud") can be rendered as an image or analyzed for other reasons such as detecting obstacles. Viewers that render these point clouds (today typically PC based) can manipulate the view to give the
appearance of a 3-D image. While the data that comes back is lacking color or other characteristics, different schemes can be used to depict the distance measurements that allow the rendering device to show the 3-D image as if it were captured by a live action camera.
[0003] There exist a number of commercial products that can capture distance points in rapid succession and render a 2-D (i.e. single plane) point cloud. These instruments are often used in surveying, mapping, autonomous navigation, industrial applications, and for other purposes. Most of these devices rely on the use of a single laser emitter/detector combination combined with some type of moving mirror to effect scanning across at least one plane, as shown in FIGURE 1.
[0004] Such devices are often used in industrial applications, as shown in FIGURE 2. Note the scan lines emitting from the unit - the spinning mirror allows the single laser emitter/detector assembly to be aimed along this plane via the use of the rotating mirror.
[0005] Often, these mirrors are rotated at very fast speeds - in the thousands of RPMs. As stated above, this design inherently renders only a 2-D point cloud. However, a 3-D point cloud is often required. The other dimension is provided for in a number of ways. Most often, the entire instrument is actuated up and down and/or back and forth, often on a gimbal - a process know within the art as winking or nodding the sensor. Thus, a single beam lidar unit can be employed to capture an entire 3-D array of distance points, albeit one point at a time. An example of this approach is shown in FIGURE 3. FIGURE 3 shows a 2-D scanner employing a single laser emitter/detector pair and a rotating mirror mounted on a gimbal that "nods" the unit up and down, and rotates it back and forth in order to increase field of view.
[0006] In yet other single laser emitter/detector pair mirror-based prior art devices there exists a prism that "divides" the laser pulse into multiple "layers," with each layer having a slightly different vertical angle. This simulates the nodding effect described above but with no need for actuation of the sensor itself.
[0007] In all the above examples, the main premise is a single laser emitter/detector combination, where the light path is somehow altered to achieve a broader field of view than a single sensor can achieve. The device is inherently limited to the number of pixels it can generate due to the limitation of how many pulses per second are possible from a single laser. Any alteration of the laser's path, whether it is by mirror, prism, or actuation of the device, causes the point cloud to be less dense, but cover a broader area. The goal for sensors of this nature is to maximize the number of pixels to provide a point cloud that covers a broad field of view yet is as dense as possible.
[0008] It is of course possible to add additional lasers and detectors to a rotating mirror unit. While this can easily be done, the resultant performance does not necessarily scale with the number of lasers used. When multiple laser emitter/detector combinations are employed for a spinning mirror scanner, or when the single laser is divided via the use of a prism, the image also rotates. Therefore, while the beams will fan out vertically in one direction, they will twist so as to align horizontally in the 90- degree rotational direction. While this arrangement can be used for forward-looking- only units, it is less than desirable if a sideways view is also desirable, as is often the case for many applications.
[0009] There also exist "flash lidar" units. These operate by simultaneously illuminating a large area, and capturing the resultant pixel-distance information on a
specialized 2-D focal plane array (FPA). Such sensors are complicated and difficult to manufacture, and as a result not widely deployed commercially. However, it is expected that they will someday replace the mechanically scanned sensors, as they are solid state, and require no moving parts. FIGURE 4 shows the framework for the detector array of a flash lidar unit.
[0010] It is always desirable to collect more points faster. Until flash lidar technology is perfected, there will always be a compromise of sensors that alter the path of the emitter/detector beam in order to achieve a broader field of view.
[0011] As noted above, 3-D point cloud systems exist in several configurations, the needs for autonomous vehicle navigation place unrealistic demands on current systems. For example, there are numerous systems that take excellent pictures, but take several minutes to collect a single image. Such systems are unsuitable for highway use. There are also flash systems that have excellent update rate but lack field of view lack and good distance performance. There are single beam systems that can provide useful information but do not work well with objects that are too small and fall outside the unit's field of view. In reality, it is necessary to see everywhere around the vehicle, almost a full 360 degrees, in order to safely navigate today's highways. In addition, it is necessary to have a minimum of delay between the actions happening in the real world and the imaging / reaction to it. Generally, it is accepted that human response time is in the several tenths of a second. Therefore, it is realistic to provide the navigation computer with a complete fresh update approximately ten times a second. Of course, faster is better, but it may also be possible to navigate successfully with an update rate of 5 times a second. The vertical field of view needs to extend above the horizon, in case the car enters a dip in the
road, and should extend down as close as possible to see the ground in front of the vehicle. Of course, it is not possible to see directly in front of the vehicle, since the hood or other parts of the car obstruct the view.
While the preferred embodiment uses 64 discrete vertical beams to capture the point cloud data, as few as 16 beams or fewer could be employed, with largely the same result. In addition, it is preferable to disperse the beams such that there is coverage that is more detailed directly horizontally in front of the vehicle, such concentration being useful for highway driving at speed.
SUMMARY OF THE INVENTION
[0012] The present invention provides a lidar-based 3-D point cloud measuring system. An example system includes a base, a housing, a plurality of photon transmitters and photon detectors contained within the housing, a rotary motor that rotates the housing about the base, and a communication component that allows transmission of signals generated by the photon detectors to external components.
[0013] In one aspect of the invention, the rotary component includes a rotary power coupling configured to provide power from an external source to the rotary motor, the photon transmitters, and the photon detectors, as well as signal in and out of the unit.
[0014] In another aspect of the invention, the photon transmitters and detectors of each pair are held in a fixed relationship with each other.
[0015] In another aspect of the invention, a single detector is "shared" among several lasers by focusing several detection regions onto a single detector, or by using a single, large detector.
[0016] In another aspect of the invention, a single laser beam is divided into several smaller beams, with each smaller beam focused onto its own detector.
[0017] In still another aspect of the invention, the communication component comprises at least one of a rotary coupling device or a wireless communication device.
[0018] The present invention provides a more compact and rugged unit for gathering 3-D point cloud information. In addition, the present invention provides the ability to discern multiple returns.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Preferred and alternative embodiments of the present invention are described in detail below with reference to the following drawings:
[0020] FIGURES 1-4 illustrate inventions formed according to the prior art;
[0021] FIGURE 5 is a Lidar Terrain mapping and obstacle detection system shown at rest;
[0022] FIGURE 6 is the Lidar Terrain mapping and obstacle detection system shown in operation at 300 RPM;
[0023] FIGURE 7 is a perspective view of the present invention mounted to a vehicle;
[0024] FIGURES 8A and B illustrate components of an auto braking and auto steering components;
[0025] FIGURES 9 and 10 illustrate circuits for performing data acquisition and auto vehicle control;
[0026] FIGURES 11 and 12 illustrate components of an auto vehicle operating system;
[0027] FIGURES 13-22 illustrate various views of a scanning device formed in accordance with an embodiment of the present invention;
[0028] FIGURES 23A and B illustrate various circuits for driving laser diodes;
[0029] FIGURE 24 illustrates example pulses generated for the laser diode;
[0030] FIGURES 25-26 illustrate results of operation of the circuit from FIGURE 23 A.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0031] FIGURES 5-12 illustrate a Laser Imaging Detection and Ranging (Lidar) terrain mapping and obstacle detection system employed as an autonomous sensor for a vehicle. The Lidar system includes 8 assemblies of 8 lasers each as shown in FIGURE 5 or 2 assemblies of 32 lasers each forming a 64-element Lidar system as shown in FIGURES 13-26. The system has a 360-degree horizontal field of view (FOV) and a 26.8-degree vertical FOV. The system is typically mounted on the top center of a vehicle, giving it a clear view in all directions, and rotates at a rate of up to 20 Hz, thereby providing a high point cloud refresh rate, such high rate being necessary for autonomous navigation at higher speeds. At this configuration, the system can collect approximately 1 million time of flight (TOF) distance points per second. The system provides the unique combination of 360 degree FOV, high point
cloud density, and high refresh rate. The standard deviation of TOF measurements is equal to or less than 5 cm. The Lidar system has an inertial navigation system (INS) sensor system mounted on it to report exact pitch and roll of the unit that is used by navigational computers to correct for these deviations. The unit generates its own light and uses a proprietary filter to reject sunlight, so it works well under all lighting and most weather conditions. Through the use of digital signal processor (DSP) control, a dynamic power feature allows the system to increase the intensity of the laser emitters if a clear terrain reflection is not obtained by photo detectors (whether due to reflective surface, weather, or other reasons), and to reduce power to the laser emitters for safety reasons if a strong reflection signal is detected by photo detectors. A direct benefit of this feature is that the Lidar system is capable of seeing through fog and heavy rain by increasing laser power dynamically and ignoring early reflections. The unit also has the capability to receive and decipher multiple returns from a single laser emission through digitization and analysis of the waveform generated by the detector as the signal generated from the emitter returns.
[0032] The Lidar system sends data in the form of range and intensity information via Ethernet output (or similar output) to a master navigational system. Using standard trigonometry, the range data is converted into x and y coordinates and a height value. The height value is corrected for the vehicle's pitch and roll so the resulting map is with reference to the horizontal plane of the vehicle. The map is then "moved" in concert with the vehicle's forward or turning motion. Thus, the sensor's input is cumulative and forms an ultra-high-density profile map of the surrounding environment.
[0033] This highly detailed terrain map is then used to calculate obstacle avoidance vectors if required and, as importantly, determine the maximum allowable speed given the terrain ahead. The Lidar system identifies of size and distance of objects in view, including the vertical position and contour of a road surface. The anticipated offset of the vehicle from a straight, level path, either vertical or horizontal, at different distances is translated into the G-force that the vehicle will be subject to when following the proposed path at the current speed. That information can be used to determine the maximum speed that the vehicle should be traveling, and acceleration or braking commands are issued accordingly. In all cases the software seeks the best available road surface (and thus the best possible speed) still within the boundaries of a global positioning system (GPS) waypoint being traversed.
[0034] The system shown in FIGURES 5-8 includes 64 emitter/detector (i.e. laser diode/photo diode) pairs divided into eight groups of eight. The system shown in FIGURES 13-24 also includes 64 emitter/detector pairs, but in a configuration of 2 assemblies of 32 pairs. It is also possible to "share" a single detector among several lasers by focusing several detection regions onto a single detector, or by using a single, large detector. By firing a single laser at a time, there would be no ambiguity as to which laser is responsible for a return signal. Conversely, one could also subdivide a single laser beam into several smaller beams. Each beam would be focused onto its own detector. In any event, such systems are still considered emitter-detector pairs.
[0035] The laser diode is preferably an OSRAM 905nm emitter, and the photo diode is preferably an Avalanche variety, but other types can be used. The lenses are preferably UV treated to block sunlight. Each pair is physically aligned in
1/3° increments, ranging from above horizontal (aligned at 500 feet in front of the vehicle) to approximately -24° (aligned to 20 feet in front of the vehicle). Each of the emitter/detector pairs are controlled by one or more DSPs, which determines when they will fire, determines the intensity of the firing based on the previous return, records the time-of-flight, calculates height data based time-of-flight and angular alignment of each pair. Results, including multiple returns if any, are transmitted via Ethernet to the master navigational computer via a rotary coupling.
[0036] It is advantageous to fire only several lasers, or preferably just one, at a time. This is because of naturally occurring crosstalk, or system blinding that occurs when the laser beam encounters a retroreflector. Such retroreflectors are commonly used along the roadways. A single beam at a time system is thus resistant to retroreflector blinding, while a flash system could suffer severe image degradation as a result.
[0037] Another advantage of firing only a small number of lasers at a time is the ability to share, or multiplex, the detection circuitry among several detectors. Since the detection circuitry consists of high speed A-D 's, such as those made by National Semiconductor, considerable cost savings can be had by minimizing the use of these expensive components.
[0038] In the preferred embodiment, the detectors are power cycled, such that only the desired detector is powered up at any one time. Then the signals can simply be diode-ored together to obtain the desired multiplexing. An additional benefit of power-cycling the detectors is that total system power consumption is reduced, and the detectors therefore run cooler and are therefore more sensitive.
[0039] A simple DC motor controller driving a high reliability brushed motor controls the rotation of the emitter/detectors. A rotary encoder feeds rotational position to the DSPs that use the position data to determine firing sequence. Software and physical failsafes ensure that no firing takes place until the system is rotating at a minimum RPM.
[0040] In one embodiment, the navigational system uses Dual GPS receivers. The first is a Navcom 2050G using the Starfire subscription service and the second is a Novatel ProPak-LB receiver using the Omnistar subscription service. These subscription services typically deliver 2-inch accuracy under full sky-in-view conditions when operating in dual-differential mode. Any high precision GPS system could be used. The GPS receivers are used to correct the errors in the INS. The INS includes gyros, such as fiber optic gyros (FOG). In addition, there is a 6-axis inertial system mounted on the Lidar head that is used to correct the Lidar signal as well as provide pitch and roll information for correcting the FOG gyro signal.
[0041] Vehicle control is accomplished through the actuation of 2 20 HP brushless motors for brake and steering respectively (see FIGURE 8A, B), controlled by Texas Instruments C2400 DSP chips. The acceleration is accomplished electronically by tying into the dual voltage acceleration system of the vehicle. The present invention can be retrofitted on virtually any vehicle - land, air, sea, or space vehicles.
[0042] FIGURE 9 illustrates an example of the circuit components within a rotating head unit. The rotating head unit includes multiple detector and emitter circuits each having its own processor. The data produced by each circuit is output to external components via a rotary coupling. Other data transmission techniques may
be used, such as wireless transmission via any of a number of different wireless protocols.
[0043] FIGURE 10 shows the key navigational aspects of a system 50 and how they interconnect. The terrain map as generated from the Lidar terrain-mapping system (not shown) is fed via a single channel high-speed connection to a serial-to- parallel converter 52, which then populates a FIFO memory array 54 (later embodiments transfer information via an ETHERNET connection). A DSP 60 then receives the Lidar information from the FIFO array 54 along with information from two GPSs, two INSs, FOG Gyro, Odometer, and remote kill switch. This data is evaluated to decide the vehicle's path followed by serial commands issued to control the vehicle (note the steering, brake, throttle, and siren outputs). The steering and brake motors are controlled by DSPs 62, 64, and the acceleration is controlled through an electronic interface via a custom interface board. The DSP 60 also controls a video display 68 that allows viewing of the Lidar image for observation and debugging purposes.
[0044] A small footprint is achieved through the use of embedded DSP technology. All PC boards for decision making, sensing, motor control and navigational data are proprietary, designed exclusively for this purpose, and fit in a single motherboard/daughterboard case. All major navigational components fit in a box mounted on the roof of the truck cab (shown in FIGURES 7 and 11). The only other modifications to the vehicle are a steering motor integrated with the steering mechanism in the engine compartment, a brake motor that sits on the floor of the cab, and the acceleration interface (in this case electronic).
[0045] The result of the preferred embodiment design is a truck that is street legal and that affords full passenger comforts even while in autonomous mode. The entirety of system testing is performed while riding inside the vehicle and actuating three switches for gas, steering and brake over the driver's head, shown in FIGURE 12.
[0046] The present invention performs at a frame rate that permits highspeed navigation, provides recognition of both positive and negative obstacles, provides exceptional point cloud density, provides full 360 degree HFOV, provides broad VFOV, and provides high accuracy rates.
[0047] FIGURE 13 illustrates a perspective view of a 64 emitter/detector pair lidar component 150. The component 150 includes a housing 152 that is opened on one side for receiving a first Lidar system 154 located above a second Lidar system 156. The second Lidar system 156 is positioned to have line of sight with a greater angle relative to horizontal than the first Lidar system 154. The housing 152 is mounted over a base housing section 158.
[0048] As shown in FIGURES 14 and 15, the section 158 includes a magnetic rotor 159 and stator 160. A rotary coupling 161, such as a three-conductor Mercotac model 305, passes through the center of the section 158 and the rotor 159. The three conductors facilitated by the rotary coupling are power, signal, and ground. A bearing 162 mounts on the rotary coupling 161. A rotary encoder 163 has one part mounted on the rotary coupling 161 and another part mounted on the base section 158 of the housing 152. The rotary encoder 163, such as a U.S. Digital Model number E6S-1000-750-I-PKG1 provides information regarding to rotary position of the
housing 152. The magnetic rotor 159 and stator 160 cause rotary motion of the base section 158 and thus the housing 152 about the rotary coupling 161.
[0049] FIGURE 16 illustrates a perspective view of the first Lidar system 14. The Lidar system 154 includes a face section that has two cavities 174 for mounting emitter lenses and one larger cavity 170 for mounting the single detector lens. As shown in FIGURE 22, behind each of the lenses in the cavity 174, are 16 laser emitters organized relatively horizontally, thereby combining for 32 total emitters. Behind the lens of the cavity 170 are 32 detectors that are positioned within a tube 176 of the unit 154. As shown in FIGURE 17 the second lidar unit 156 is somewhat comparable to the first Lidar system 154, but includes a shorter tube 178 and has a downward looking pitch angle. FIGURE 18 illustrates a rearview of the second Lidar system 156.
[0050] Behind each of the lenses of the cavity 174, are emitter packages 180. Each emitter package 180 includes 16 distinct emitters 188 (per side). Each emitter 188 of an emitter unit 180 is positioned within unit 196 and of laser bracket 195 (see FIGURES 19 and 20). Each emitter is aligned to the corresponding receiver on the laser detector board 166 than attached with adhesive to each emitter and to bracket laser unit 196 and bracket block strap 195.
[0051] FIGURES 23A and B illustrate circuits used for controlling the firing of a laser diode. With regard to FIGURES 23A and 24, the DSP sends a charge/on signal to a FET 200, thereby charging an inductor 204, which in turn charges a capacitor 206, which in turn causes a laser 210 to fire. The DSP turns off the FET 200 after a predetermined period of time as previously determined by return intensity measurements from the last pulse. The charging pulse is on for ~5
microseconds and the firing pulse is on for ~20 nanoseconds, variable power laser diode firing circuit. It can be seen that the energy stored in the inductor is Vi * L * IΛ2. When the FET is turned off, this energy is transferred into the discharge capacitor via a diode. The energy in the capacitor is Vi * C * VΛ2. It is apparent then that the voltage that is in the capacitor is proportional to the on duration of the FET. Therefore, the DSP can use a simple algorithm to predict the proper amount of voltage in the capacitor. For example, if the return pulse is Vi as large as desirable, from a noise and measurement accuracy point of view, then the DSP simple charges the inductor for twice as long for the next pulse. Of course, such a system cannot see into the future, so it is not always possible to get the perfect return intensity every time. Nevertheless, the technique works well enough most of the time for the system to benefit from technique.
[0052] FIGURE 23B includes two FETs. When FETl is on during a charging pulse (FIGURE 24), an inductor 240 charges a capacitor 242. When the FET2 is on during the firing pulse (see FIGURE 24), FET2 causes the capacitor 242 to discharge thereby firing a laser diode 244.
[0053] FIGURE 25 illustrates current and luminance output of the circuits of FIGURES 23 A and B. FIGURE 26 shows digitized sensed values at the photo diode of the receiving side.
[0054] While the preferred embodiment of the invention has been illustrated and described, as noted above, many changes can be made without departing from the spirit and scope of the invention. Accordingly, the scope of the invention is not limited by the disclosure of the preferred embodiment. Instead, the invention should be determined entirely by reference to the claims that follow.
Claims
1. A lidar-based 3-D point cloud system comprising: a plurality of photon transmitters and photon detectors; and a rotary coupling device configured to rotate the plurality of photon transmitters and photon detectors;
2. The system of Claim 1, wherein the rotary coupling device comprises a rotary power coupling configured to provide power from an external source to the plurality of photon transmitters and photon detectors.
3. The system of Claim 1, wherein the plurality of photon transmitters and photon detectors include pairs of photon transmitters and detectors, each pair being held in a fixed relationship with each other.
4. The system of Claim 1, wherein the rotary coupling device comprises a rotary coupler configured to transmit signals to and from the plurality of photon transmitters and photon detectors.
5. The system of Claim 1, further comprising a communication component configured to allow transmission of signals generated by the photon detectors to external components.
6. The system of Claim 5, wherein the communication component comprises a wireless communication device.
7. The system of Claim 1, further comprising a rotary encoder configured to determine rotational location of the housing relative to the base.
8. The system of Claim 1, wherein the plurality of photon transmitters and photon detectors includes 16 or more transmitters and detectors.
9. The system of Claim 1, wherein the plurality of photon transmitters and photon detectors includes one of the detectors configured to receive reflections from more than one transmitter.
10. The system of Claim 1, wherein the plurality of photon transmitters and photon detectors includes one of the transmitters configured to provide reflections to more than one detectors.
11. A lidar-based 3-D point cloud system comprising: a base; a housing; a plurality of photon transmitters and photon detectors contained within the housing; a rotary component configured to rotate the housing about the base; and a communication component configured to allow transmission of signals generated by the photon detectors to external components.
12. The system of Claim 11, wherein the rotary component further comprises a rotary motor and a rotary power coupling configured to provide power from an external source to the photon transmitters and the photon detectors.
13. The system of Claim 11, wherein the plurality of photon transmitters and photon detectors include pairs of photon transmitters and detectors, each pair being held in a fixed relationship with each other.
14. The system of Claim 11, wherein the communication component comprises at least one of a rotary coupling device or a wireless communication device.
15. The system of Claim 11 , further comprising: a rotary encoder configured to determine rotational location of the housing relative to the base.
16. The system of Claim 11, wherein the housing rotates at greater than is 200rpm.
17. The system of Claim 11, wherein the plurality of photon transmitters and photon detectors includes one of the detectors configured to receive reflections from more than one transmitter.
18. The system of Claim 11, wherein the plurality of photon transmitters and photon detectors includes one of the transmitters configured to provide reflections to more than one detectors.
19. The system of Claim 11, wherein the detectors record greater than 300k points per second.
20. The system of Claim 11, wherein the photon transmitters comprise at least one laser diode configured to transmit a light signal, and the photon detectors
comprise at least one photo diode configured to generate a signal responsive to the transmitted light signal, further comprising: a controller configured to change the output of the at least one laser diode based on the signal generated responsive to the transmitted light signal.
21. The system of Claim 20, wherein the controller comprises a field effect transistor (FET), a discharge capacitor, and an inductor device.
22. A method of generating 3-D point cloud, the method comprising: providing a plurality of photon transmitters and photon detectors; and rotating the plurality of photon transmitters and photon detectors using a rotary coupling device; transmitting light signals from the transmitters; receiving light reflections at the detectors based on the transmitted light signals; generating a 3-D point cloud based on the received light reflections.
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Cited By (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2381272A1 (en) | 2010-04-22 | 2011-10-26 | Kabushiki Kaisha Topcon | Laser scanner |
EP2388615A1 (en) * | 2010-05-17 | 2011-11-23 | Velodyne Acoustics, Inc. | High definition lidar system |
CN106199556A (en) * | 2016-06-24 | 2016-12-07 | 南京理工大学 | A kind of rotating scanning device of autonomous driving mobile lidar |
USRE46672E1 (en) | 2006-07-13 | 2018-01-16 | Velodyne Lidar, Inc. | High definition LiDAR system |
US9885778B2 (en) | 2014-08-15 | 2018-02-06 | Aeye, Inc. | Method and system for scanning ladar transmission with pulse modulation |
US9933513B2 (en) | 2016-02-18 | 2018-04-03 | Aeye, Inc. | Method and apparatus for an adaptive ladar receiver |
DE102016220708A1 (en) | 2016-10-21 | 2018-04-26 | Volkswagen Aktiengesellschaft | Lidar sensor and method for optically sensing an environment |
WO2018125825A1 (en) * | 2016-12-30 | 2018-07-05 | Panosense, Inc. | Laser power calibration and correction |
US10042159B2 (en) | 2016-02-18 | 2018-08-07 | Aeye, Inc. | Ladar transmitter with optical field splitter/inverter |
US10185028B2 (en) | 2017-02-17 | 2019-01-22 | Aeye, Inc. | Method and system for ladar pulse deconfliction using delay code selection |
CN109725322A (en) * | 2017-10-30 | 2019-05-07 | 光宝电子(广州)有限公司 | Distance sensing device |
EP3518000A1 (en) * | 2018-01-26 | 2019-07-31 | Sick AG | Optoelectronic sensor and method for detecting objects |
US10416292B2 (en) | 2016-05-24 | 2019-09-17 | Veoneer Us, Inc. | Direct detection LiDAR system and method with frequency modulation (FM) transmitter and quadrature receiver |
US10473784B2 (en) | 2016-05-24 | 2019-11-12 | Veoneer Us, Inc. | Direct detection LiDAR system and method with step frequency modulation (FM) pulse-burst envelope modulation transmission and quadrature demodulation |
US10495757B2 (en) | 2017-09-15 | 2019-12-03 | Aeye, Inc. | Intelligent ladar system with low latency motion planning updates |
US10598788B1 (en) | 2018-10-25 | 2020-03-24 | Aeye, Inc. | Adaptive control of Ladar shot selection using spatial index of prior Ladar return data |
US10613200B2 (en) | 2017-09-19 | 2020-04-07 | Veoneer, Inc. | Scanning lidar system and method |
US10641872B2 (en) | 2016-02-18 | 2020-05-05 | Aeye, Inc. | Ladar receiver with advanced optics |
US10641897B1 (en) | 2019-04-24 | 2020-05-05 | Aeye, Inc. | Ladar system and method with adaptive pulse duration |
EP3437536B1 (en) | 2016-05-02 | 2020-05-13 | Samsung Electronics Co., Ltd. | Cleaning robot and control method therefor |
US10684370B2 (en) | 2017-09-29 | 2020-06-16 | Veoneer Us, Inc. | Multifunction vehicle detection system |
US10838043B2 (en) | 2017-11-15 | 2020-11-17 | Veoneer Us, Inc. | Scanning LiDAR system and method with spatial filtering for reduction of ambient light |
US10838062B2 (en) | 2016-05-24 | 2020-11-17 | Veoneer Us, Inc. | Direct detection LiDAR system and method with pulse amplitude modulation (AM) transmitter and quadrature receiver |
US10908262B2 (en) | 2016-02-18 | 2021-02-02 | Aeye, Inc. | Ladar transmitter with optical field splitter/inverter for improved gaze on scan area portions |
US10983218B2 (en) | 2016-06-01 | 2021-04-20 | Velodyne Lidar Usa, Inc. | Multiple pixel scanning LIDAR |
EP3742199A4 (en) * | 2018-01-15 | 2021-06-23 | Hesai Photonics Technology Co., Ltd | Laser radar and operation method therefor |
EP3848721A1 (en) | 2020-01-10 | 2021-07-14 | Sick Ag | Optoelectronic sensor and method for detecting objects |
US11073617B2 (en) | 2016-03-19 | 2021-07-27 | Velodyne Lidar Usa, Inc. | Integrated illumination and detection for LIDAR based 3-D imaging |
US11082010B2 (en) | 2018-11-06 | 2021-08-03 | Velodyne Lidar Usa, Inc. | Systems and methods for TIA base current detection and compensation |
US11137480B2 (en) | 2016-01-31 | 2021-10-05 | Velodyne Lidar Usa, Inc. | Multiple pulse, LIDAR based 3-D imaging |
US11194022B2 (en) | 2017-09-29 | 2021-12-07 | Veoneer Us, Inc. | Detection system with reflection member and offset detection array |
US20210395982A1 (en) * | 2019-01-23 | 2021-12-23 | Komatsu Ltd. | System and method for work machine |
USRE48961E1 (en) * | 2015-03-25 | 2022-03-08 | Waymo Llc | Vehicle with multiple light detection and ranging devices (LIDARs) |
US11300667B1 (en) | 2021-03-26 | 2022-04-12 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control for scan line shot scheduling |
US11313969B2 (en) | 2019-10-28 | 2022-04-26 | Veoneer Us, Inc. | LiDAR homodyne transceiver using pulse-position modulation |
US11326758B1 (en) | 2021-03-12 | 2022-05-10 | Veoneer Us, Inc. | Spotlight illumination system using optical element |
GB2602154A (en) * | 2020-12-21 | 2022-06-22 | Nissan Motor Mfg Uk Ltd | Lidar sensor assembly and mount |
US11460550B2 (en) | 2017-09-19 | 2022-10-04 | Veoneer Us, Llc | Direct detection LiDAR system and method with synthetic doppler processing |
US11467263B1 (en) | 2021-03-26 | 2022-10-11 | Aeye, Inc. | Hyper temporal lidar with controllable variable laser seed energy |
US11474218B2 (en) | 2019-07-15 | 2022-10-18 | Veoneer Us, Llc | Scanning LiDAR system and method with unitary optical element |
US11480680B2 (en) | 2021-03-26 | 2022-10-25 | Aeye, Inc. | Hyper temporal lidar with multi-processor return detection |
US11500093B2 (en) | 2021-03-26 | 2022-11-15 | Aeye, Inc. | Hyper temporal lidar using multiple matched filters to determine target obliquity |
US11561286B2 (en) | 2018-04-27 | 2023-01-24 | Sharp Kabushiki Kaisha | Optical radar apparatus for long distance measurement |
US11579257B2 (en) | 2019-07-15 | 2023-02-14 | Veoneer Us, Llc | Scanning LiDAR system and method with unitary optical element |
US11585901B2 (en) | 2017-11-15 | 2023-02-21 | Veoneer Us, Llc | Scanning lidar system and method with spatial filtering for reduction of ambient light |
US11604264B2 (en) | 2021-03-26 | 2023-03-14 | Aeye, Inc. | Switchable multi-lens Lidar receiver |
US11609311B2 (en) | 2017-10-24 | 2023-03-21 | Sharp Kabushiki Kaisha | Pulsed light irradiation/detection device, and optical radar device |
US11630188B1 (en) | 2021-03-26 | 2023-04-18 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control using safety models |
US11635495B1 (en) | 2021-03-26 | 2023-04-25 | Aeye, Inc. | Hyper temporal lidar with controllable tilt amplitude for a variable amplitude scan mirror |
US11703569B2 (en) | 2017-05-08 | 2023-07-18 | Velodyne Lidar Usa, Inc. | LIDAR data acquisition and control |
US11726192B2 (en) | 2017-12-05 | 2023-08-15 | Sharp Kabushiki Kaisha | Photoreceptor, flight time measurement device, and optical radar |
US11732858B2 (en) | 2021-06-18 | 2023-08-22 | Veoneer Us, Llc | Headlight illumination system using optical element |
US11796648B2 (en) | 2018-09-18 | 2023-10-24 | Velodyne Lidar Usa, Inc. | Multi-channel lidar illumination driver |
US11808891B2 (en) | 2017-03-31 | 2023-11-07 | Velodyne Lidar Usa, Inc. | Integrated LIDAR illumination power control |
US11885958B2 (en) | 2019-01-07 | 2024-01-30 | Velodyne Lidar Usa, Inc. | Systems and methods for a dual axis resonant scanning mirror |
US11933967B2 (en) | 2019-08-22 | 2024-03-19 | Red Creamery, LLC | Distally actuated scanning mirror |
US12019187B2 (en) | 2017-06-19 | 2024-06-25 | Hesai Technology Co., Ltd. | Lidar system and method |
US12044800B2 (en) | 2021-01-14 | 2024-07-23 | Magna Electronics, Llc | Scanning LiDAR system and method with compensation for transmit laser pulse effects |
US12055661B2 (en) | 2017-06-19 | 2024-08-06 | Hesai Technology Co., Ltd. | Lidar system and method |
US12061263B2 (en) | 2019-01-07 | 2024-08-13 | Velodyne Lidar Usa, Inc. | Systems and methods for a configurable sensor system |
US12092278B2 (en) | 2022-10-07 | 2024-09-17 | Magna Electronics, Llc | Generating a spotlight |
Families Citing this family (383)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007028049A2 (en) * | 2005-09-02 | 2007-03-08 | Neato Robotics, Inc. | Multi-function robotic device |
US8050863B2 (en) * | 2006-03-16 | 2011-11-01 | Gray & Company, Inc. | Navigation and control system for autonomous vehicles |
US8996172B2 (en) * | 2006-09-01 | 2015-03-31 | Neato Robotics, Inc. | Distance sensor system and method |
US8675181B2 (en) * | 2009-06-02 | 2014-03-18 | Velodyne Acoustics, Inc. | Color LiDAR scanner |
US11609336B1 (en) | 2018-08-21 | 2023-03-21 | Innovusion, Inc. | Refraction compensation for use in LiDAR systems |
US8655513B2 (en) * | 2010-03-12 | 2014-02-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Methods of real time image enhancement of flash LIDAR data and navigating a vehicle using flash LIDAR data |
US8786845B2 (en) | 2010-04-08 | 2014-07-22 | Navteq B.V. | System and method of generating and using open sky data |
US8629977B2 (en) | 2010-04-14 | 2014-01-14 | Digital Ally, Inc. | Traffic scanning LIDAR |
CA2805701C (en) | 2010-07-22 | 2018-02-13 | Renishaw Plc | Laser scanning apparatus and method of use |
EP2602586A4 (en) * | 2010-08-06 | 2016-11-23 | Panasonic Ip Man Co Ltd | Imaging device and imaging method |
US9229106B2 (en) | 2010-08-13 | 2016-01-05 | Ryan Dotson | Enhancement of range measurement resolution using imagery |
KR101030763B1 (en) * | 2010-10-01 | 2011-04-26 | 위재영 | Image acquisition unit, acquisition method and associated control unit |
JP2012083267A (en) * | 2010-10-13 | 2012-04-26 | Japan Aerospace Exploration Agency | Multi-lidar system |
US9175998B2 (en) | 2011-03-04 | 2015-11-03 | Georgetown Rail Equipment Company | Ballast delivery and computation system and method |
US8875635B2 (en) | 2011-03-04 | 2014-11-04 | Georgetown Rail Equipment Company | Ballast delivery and computation system and method |
US8781655B2 (en) | 2011-10-18 | 2014-07-15 | Herzog Railroad Services, Inc. | Automated track surveying and ballast replacement |
US9051695B2 (en) | 2011-10-18 | 2015-06-09 | Herzog Railroad Services, Inc. | Automated track surveying and ballast replacement |
US8615110B2 (en) | 2012-03-01 | 2013-12-24 | Herzog Railroad Services, Inc. | Automated track surveying and ditching |
US9091535B2 (en) | 2012-05-22 | 2015-07-28 | Korea Institute Of Industrial Technology | 3D scanning system and method of obtaining 3D image |
KR101391298B1 (en) | 2012-08-21 | 2014-05-07 | 한국생산기술연구원 | Three dimensional laser scanning system |
US8909375B2 (en) * | 2012-05-25 | 2014-12-09 | The United States Of America, As Represented By The Secretary Of The Navy | Nodding mechanism for a single-scan sensor |
GB2504136B (en) * | 2012-07-20 | 2014-06-25 | 3D Laser Mapping Ltd | Housing |
US8954241B2 (en) | 2012-08-10 | 2015-02-10 | Caterpillar Inc. | Mining truck spotting under a shovel |
US9383753B1 (en) | 2012-09-26 | 2016-07-05 | Google Inc. | Wide-view LIDAR with areas of special attention |
WO2014143276A2 (en) | 2012-12-31 | 2014-09-18 | Omni Medsci, Inc. | Short-wave infrared super-continuum lasers for natural gas leak detection, exploration, and other active remote sensing applications |
WO2014105520A1 (en) | 2012-12-31 | 2014-07-03 | Omni Medsci, Inc. | Near-infrared lasers for non-invasive monitoring of glucose, ketones, hba1c, and other blood constituents |
US9285477B1 (en) | 2013-01-25 | 2016-03-15 | Apple Inc. | 3D depth point cloud from timing flight of 2D scanned light beam pulses |
US9059649B1 (en) | 2013-03-04 | 2015-06-16 | Google Inc. | Dynamic motor position determination |
US9304154B1 (en) | 2013-03-04 | 2016-04-05 | Google Inc. | Dynamic measurements of pulse peak value |
US11726488B1 (en) | 2013-03-06 | 2023-08-15 | Waymo Llc | Light steering device with a plurality of beam-steering optics |
US9128190B1 (en) | 2013-03-06 | 2015-09-08 | Google Inc. | Light steering device with an array of oscillating reflective slats |
US10401865B1 (en) | 2013-03-06 | 2019-09-03 | Waymo Llc | Light steering device with an array of oscillating reflective slats |
US9063549B1 (en) * | 2013-03-06 | 2015-06-23 | Google Inc. | Light detection and ranging device with oscillating mirror driven by magnetically interactive coil |
US9086273B1 (en) | 2013-03-08 | 2015-07-21 | Google Inc. | Microrod compression of laser beam in combination with transmit lens |
US9618742B1 (en) | 2013-03-08 | 2017-04-11 | Google Inc. | Rotatable mirror assemblies |
US9069060B1 (en) | 2013-03-13 | 2015-06-30 | Google Inc. | Circuit architecture for optical receiver with increased dynamic range |
US9304203B1 (en) * | 2013-03-13 | 2016-04-05 | Google Inc. | Methods, devices, and systems for improving dynamic range of signal receiver |
US9048370B1 (en) | 2013-03-14 | 2015-06-02 | Google Inc. | Dynamic control of diode bias voltage (photon-caused avalanche) |
WO2014152254A2 (en) | 2013-03-15 | 2014-09-25 | Carnegie Robotics Llc | Methods, systems, and apparatus for multi-sensory stereo vision for robotics |
US9037403B2 (en) * | 2013-03-26 | 2015-05-19 | Toyota Motor Engineering & Manufacturing North America, Inc. | Intensity map-based localization with adaptive thresholding |
US9497440B2 (en) | 2013-04-05 | 2016-11-15 | Microsoft Technology Licensing, Llc | Burst-mode time-of-flight imaging |
US10132928B2 (en) | 2013-05-09 | 2018-11-20 | Quanergy Systems, Inc. | Solid state optical phased array lidar and method of using same |
CN103278159B (en) * | 2013-05-23 | 2016-01-20 | 清华大学 | Airborne 2D range finder using laser obtains the method for 3D point cloud |
US9857472B2 (en) | 2013-07-02 | 2018-01-02 | Electronics And Telecommunications Research Institute | Laser radar system for obtaining a 3D image |
KR101486146B1 (en) * | 2013-07-08 | 2015-01-23 | (주)안세기술 | 3-demensional laser scanner |
US8742325B1 (en) | 2013-07-31 | 2014-06-03 | Google Inc. | Photodetector array on curved substrate |
US10126412B2 (en) * | 2013-08-19 | 2018-11-13 | Quanergy Systems, Inc. | Optical phased array lidar system and method of using same |
US8836922B1 (en) * | 2013-08-20 | 2014-09-16 | Google Inc. | Devices and methods for a rotating LIDAR platform with a shared transmit/receive path |
US9784835B1 (en) | 2013-09-27 | 2017-10-10 | Waymo Llc | Laser diode timing feedback using trace loop |
US9368936B1 (en) * | 2013-09-30 | 2016-06-14 | Google Inc. | Laser diode firing system |
US9299731B1 (en) | 2013-09-30 | 2016-03-29 | Google Inc. | Systems and methods for selectable photodiode circuits |
US9425654B2 (en) * | 2013-09-30 | 2016-08-23 | Google Inc. | Contactless electrical coupling for a rotatable LIDAR device |
US10203399B2 (en) | 2013-11-12 | 2019-02-12 | Big Sky Financial Corporation | Methods and apparatus for array based LiDAR systems with reduced interference |
US9733344B2 (en) | 2013-11-25 | 2017-08-15 | Electronics And Telecommunications Research Institute | Laser radar apparatus and method for operating thereof |
US9625580B2 (en) * | 2014-01-03 | 2017-04-18 | Princeton Lightwave, Inc. | LiDAR system comprising a single-photon detector |
US9658322B2 (en) | 2014-03-13 | 2017-05-23 | Garmin Switzerland Gmbh | LIDAR optical scanner system |
US9360554B2 (en) | 2014-04-11 | 2016-06-07 | Facet Technology Corp. | Methods and apparatus for object detection and identification in a multiple detector lidar array |
JP6347674B2 (en) * | 2014-06-04 | 2018-06-27 | 株式会社トプコン | Laser scanner system |
US9322148B2 (en) | 2014-06-16 | 2016-04-26 | Caterpillar Inc. | System and method for terrain mapping |
US9753351B2 (en) | 2014-06-30 | 2017-09-05 | Quanergy Systems, Inc. | Planar beam forming and steering optical phased array chip and method of using same |
US9869753B2 (en) | 2014-08-15 | 2018-01-16 | Quanergy Systems, Inc. | Three-dimensional-mapping two-dimensional-scanning lidar based on one-dimensional-steering optical phased arrays and method of using same |
KR20160034719A (en) * | 2014-09-22 | 2016-03-30 | 한화테크윈 주식회사 | Lidar system |
US10036803B2 (en) | 2014-10-20 | 2018-07-31 | Quanergy Systems, Inc. | Three-dimensional lidar sensor based on two-dimensional scanning of one-dimensional optical emitter and method of using same |
US9519061B2 (en) | 2014-12-26 | 2016-12-13 | Here Global B.V. | Geometric fingerprinting for localization of a device |
US9792521B2 (en) | 2014-12-26 | 2017-10-17 | Here Global B.V. | Extracting feature geometries for localization of a device |
US10028102B2 (en) | 2014-12-26 | 2018-07-17 | Here Global B.V. | Localization of a device using multilateration |
US9803985B2 (en) | 2014-12-26 | 2017-10-31 | Here Global B.V. | Selecting feature geometries for localization of a device |
JP6172181B2 (en) | 2015-02-25 | 2017-08-02 | トヨタ自動車株式会社 | Peripheral information detection device and autonomous driving vehicle |
US10036801B2 (en) | 2015-03-05 | 2018-07-31 | Big Sky Financial Corporation | Methods and apparatus for increased precision and improved range in a multiple detector LiDAR array |
US9589355B2 (en) * | 2015-03-16 | 2017-03-07 | Here Global B.V. | Guided geometry extraction for localization of a device |
KR20160114445A (en) | 2015-03-24 | 2016-10-05 | 한화테크윈 주식회사 | Lidar system |
JP6202028B2 (en) | 2015-03-24 | 2017-09-27 | トヨタ自動車株式会社 | Arrangement structure of surrounding information detection sensor and autonomous driving vehicle |
JP6245206B2 (en) | 2015-03-24 | 2017-12-13 | トヨタ自動車株式会社 | VEHICLE CONTROL DEVICE, VEHICLE CONTROL PROGRAM, AND VEHICLE |
US9529079B1 (en) | 2015-03-26 | 2016-12-27 | Google Inc. | Multiplexed multichannel photodetector |
JP6176280B2 (en) | 2015-03-30 | 2017-08-09 | トヨタ自動車株式会社 | Arrangement structure of surrounding information detection sensor and autonomous driving vehicle |
US10012723B2 (en) | 2015-03-31 | 2018-07-03 | Amazon Technologies, Inc. | Modular LIDAR system |
KR20160118558A (en) | 2015-04-02 | 2016-10-12 | 한화테크윈 주식회사 | Lidar system |
US9880263B2 (en) * | 2015-04-06 | 2018-01-30 | Waymo Llc | Long range steerable LIDAR system |
US10144424B2 (en) | 2015-04-09 | 2018-12-04 | Toyota Jidosha Kabushiki Kaisha | Arrangement structure for vicinity information detection sensor |
EP3298321B1 (en) * | 2015-05-18 | 2022-10-19 | Terabee S.A.S. | Device and method for uniform far-field illumination with leds |
US10042042B2 (en) * | 2015-06-12 | 2018-08-07 | Aero Vironment, Inc. | Rotating lidar |
US9836895B1 (en) | 2015-06-19 | 2017-12-05 | Waymo Llc | Simulating virtual objects |
US9927515B2 (en) | 2015-06-24 | 2018-03-27 | Raytheon Company | Liquid crystal waveguide steered active situational awareness sensor |
US10527726B2 (en) | 2015-07-02 | 2020-01-07 | Texas Instruments Incorporated | Methods and apparatus for LIDAR with DMD |
US10620300B2 (en) | 2015-08-20 | 2020-04-14 | Apple Inc. | SPAD array with gated histogram construction |
JP6265186B2 (en) | 2015-09-03 | 2018-01-24 | トヨタ自動車株式会社 | Automatic driving device |
GB201516701D0 (en) | 2015-09-21 | 2015-11-04 | Innovation & Business Dev Solutions Ltd | Time of flight distance sensor |
US9992477B2 (en) | 2015-09-24 | 2018-06-05 | Ouster, Inc. | Optical system for collecting distance information within a field |
US10063849B2 (en) | 2015-09-24 | 2018-08-28 | Ouster, Inc. | Optical system for collecting distance information within a field |
KR102163117B1 (en) * | 2015-10-16 | 2020-10-07 | 한국전자기술연구원 | 3-dimmensional laser scanning apparatus and 3-dimmensional laser scanning system comprising the same |
US10557939B2 (en) | 2015-10-19 | 2020-02-11 | Luminar Technologies, Inc. | Lidar system with improved signal-to-noise ratio in the presence of solar background noise |
US9720415B2 (en) | 2015-11-04 | 2017-08-01 | Zoox, Inc. | Sensor-based object-detection optimization for autonomous vehicles |
WO2017079483A1 (en) | 2015-11-05 | 2017-05-11 | Luminar Technologies, Inc. | Lidar system with improved scanning speed for high-resolution depth mapping |
EP3168641B1 (en) | 2015-11-11 | 2020-06-03 | Ibeo Automotive Systems GmbH | Method and device for optically measuring distances |
US10539661B2 (en) * | 2015-11-25 | 2020-01-21 | Velodyne Lidar, Inc. | Three dimensional LIDAR system with targeted field of view |
EP3411660A4 (en) | 2015-11-30 | 2019-11-27 | Luminar Technologies, Inc. | Lidar system with distributed laser and multiple sensor heads and pulsed laser for lidar system |
KR20170063196A (en) * | 2015-11-30 | 2017-06-08 | 한화테크윈 주식회사 | Lidar and controlling method for the same |
US10338225B2 (en) * | 2015-12-15 | 2019-07-02 | Uber Technologies, Inc. | Dynamic LIDAR sensor controller |
US10386487B1 (en) | 2015-12-30 | 2019-08-20 | Argo AI, LLC | Geiger-mode LiDAR system having improved signal-to-noise ratio |
CN105738915B (en) * | 2016-01-07 | 2017-09-26 | 福州华鹰重工机械有限公司 | Three-dimensional radar measuring method and device |
EP3408684A4 (en) | 2016-01-31 | 2019-10-02 | Velodyne LiDAR, Inc. | Lidar based 3-d imaging with far-field illumination overlap |
EP3203259A1 (en) | 2016-02-03 | 2017-08-09 | Konica Minolta, Inc. | Optical scanning type object detection device |
JP6736308B2 (en) * | 2016-02-23 | 2020-08-05 | 株式会社Ihiエアロスペース | In-vehicle laser radar device |
US10281923B2 (en) | 2016-03-03 | 2019-05-07 | Uber Technologies, Inc. | Planar-beam, light detection and ranging system |
US9866816B2 (en) | 2016-03-03 | 2018-01-09 | 4D Intellectual Properties, Llc | Methods and apparatus for an active pulsed 4D camera for image acquisition and analysis |
KR102193324B1 (en) | 2016-03-08 | 2020-12-23 | 한국전자통신연구원 | Optical receiver and laser radar having the same |
US10048374B2 (en) | 2016-03-21 | 2018-08-14 | Velodyne Lidar, Inc. | LIDAR based 3-D imaging with varying pulse repetition |
CN109073756B (en) | 2016-03-21 | 2024-01-12 | 威力登激光雷达有限公司 | LIDAR-based 3-D imaging with varying illumination field densities |
US10197669B2 (en) | 2016-03-21 | 2019-02-05 | Velodyne Lidar, Inc. | LIDAR based 3-D imaging with varying illumination intensity |
EP3226031A1 (en) | 2016-03-29 | 2017-10-04 | Leica Geosystems AG | Laser scanner |
CN105759279B (en) | 2016-04-20 | 2018-06-01 | 深圳市速腾聚创科技有限公司 | One kind is based on the matched laser ranging system of waveform time domain and method |
US10761195B2 (en) | 2016-04-22 | 2020-09-01 | OPSYS Tech Ltd. | Multi-wavelength LIDAR system |
CN105824029B (en) * | 2016-05-10 | 2018-09-04 | 深圳市速腾聚创科技有限公司 | Multi-line laser radar |
WO2017193269A1 (en) * | 2016-05-10 | 2017-11-16 | 深圳市速腾聚创科技有限公司 | Multiline lidar |
US11237251B2 (en) | 2016-05-11 | 2022-02-01 | Texas Instruments Incorporated | Lidar scanning with expanded scan angle |
US9952317B2 (en) | 2016-05-27 | 2018-04-24 | Uber Technologies, Inc. | Vehicle sensor calibration system |
EP3465249A4 (en) * | 2016-06-01 | 2020-01-08 | Velodyne Lidar, Inc. | Multiple pixel scanning lidar |
US10823826B2 (en) * | 2016-06-14 | 2020-11-03 | Stmicroelectronics, Inc. | Adaptive laser power and ranging limit for time of flight sensor |
US10148056B2 (en) | 2016-06-20 | 2018-12-04 | Raytheon Company | Ring amplifier for extended range steerable laser transmitter and active sensor |
US9904081B2 (en) | 2016-06-20 | 2018-02-27 | Raytheon Company | LCWG steered laser transmitter and situational awareness sensor with wavelength conversion |
CN106154285B (en) * | 2016-06-20 | 2019-02-22 | 上海交通大学 | A kind of variable field-of-view three-dimensional reconstruction apparatus based on swing laser radar |
US20180341009A1 (en) | 2016-06-23 | 2018-11-29 | Apple Inc. | Multi-range time of flight sensing |
US10797460B2 (en) | 2016-07-13 | 2020-10-06 | Waymo Llc | Systems and methods for laser power interlocking |
JP6658375B2 (en) * | 2016-07-20 | 2020-03-04 | 株式会社デンソーウェーブ | Laser radar device |
US10338586B2 (en) | 2016-08-19 | 2019-07-02 | Dura Operating, Llc | Method for controlling autonomous valet system pathing for a motor vehicle |
US9896091B1 (en) | 2016-08-19 | 2018-02-20 | Ohio State Innovation Foundation | Optimized path planner for an autonomous valet parking system for a motor vehicle |
US10024970B2 (en) | 2016-08-19 | 2018-07-17 | Dura Operating, Llc | Sensor housing assembly for attachment to a motor vehicle |
US10012986B2 (en) | 2016-08-19 | 2018-07-03 | Dura Operating, Llc | Method for autonomously parking a motor vehicle for head-in, tail-in, and parallel parking spots |
US10207704B2 (en) | 2016-08-19 | 2019-02-19 | Dura Operating, Llc | Method for autonomously parking and un-parking a motor vehicle |
JP6812554B2 (en) | 2016-08-24 | 2021-01-13 | アウスター インコーポレイテッド | Optical system for collecting distance information in the field |
US10502574B2 (en) * | 2016-09-20 | 2019-12-10 | Waymo Llc | Devices and methods for a sensor platform of a vehicle |
CN109791195B (en) * | 2016-09-22 | 2023-02-03 | 苹果公司 | Adaptive transmit power control for optical access |
JP7090597B2 (en) * | 2016-09-28 | 2022-06-24 | トムトム グローバル コンテント ベスローテン フエンノートシャップ | Methods and systems for generating and using location reference data |
US10256605B2 (en) | 2016-10-14 | 2019-04-09 | Waymo Llc | GaNFET as energy store for fast laser pulser |
US10379540B2 (en) | 2016-10-17 | 2019-08-13 | Waymo Llc | Light detection and ranging (LIDAR) device having multiple receivers |
US10277084B1 (en) | 2016-10-19 | 2019-04-30 | Waymo Llc | Planar rotary transformer |
US10684358B2 (en) * | 2016-11-11 | 2020-06-16 | Raytheon Company | Situational awareness sensor using a fixed configuration of optical phased arrays (OPAs) |
US10275610B2 (en) | 2016-11-28 | 2019-04-30 | Stmicroelectronics, Inc. | Time of flight sensing for providing security and power savings in electronic devices |
US10502618B2 (en) | 2016-12-03 | 2019-12-10 | Waymo Llc | Waveguide diffuser for light detection using an aperture |
CA3046812A1 (en) | 2016-12-16 | 2018-06-21 | Baraja Pty Ltd | Estimation of spatial profile of environment |
US10359507B2 (en) | 2016-12-30 | 2019-07-23 | Panosense Inc. | Lidar sensor assembly calibration based on reference surface |
US10591740B2 (en) | 2016-12-30 | 2020-03-17 | Panosense Inc. | Lens assembly for a LIDAR system |
CN111108342B (en) | 2016-12-30 | 2023-08-15 | 辉达公司 | Visual range method and pair alignment for high definition map creation |
US10830878B2 (en) | 2016-12-30 | 2020-11-10 | Panosense Inc. | LIDAR system |
US10109183B1 (en) | 2016-12-30 | 2018-10-23 | Panosense Inc. | Interface for transferring data between a non-rotating body and a rotating body |
US10295660B1 (en) | 2016-12-30 | 2019-05-21 | Panosense Inc. | Aligning optical components in LIDAR systems |
JP7088937B2 (en) | 2016-12-30 | 2022-06-21 | イノビュージョン インコーポレイテッド | Multi-wavelength rider design |
US10742088B2 (en) | 2016-12-30 | 2020-08-11 | Panosense Inc. | Support assembly for rotating body |
US10122416B2 (en) | 2016-12-30 | 2018-11-06 | Panosense Inc. | Interface for transferring power and data between a non-rotating body and a rotating body |
US10942257B2 (en) | 2016-12-31 | 2021-03-09 | Innovusion Ireland Limited | 2D scanning high precision LiDAR using combination of rotating concave mirror and beam steering devices |
US10520592B2 (en) * | 2016-12-31 | 2019-12-31 | Waymo Llc | Light detection and ranging (LIDAR) device with an off-axis receiver |
US11009605B2 (en) | 2017-01-05 | 2021-05-18 | Innovusion Ireland Limited | MEMS beam steering and fisheye receiving lens for LiDAR system |
US11054508B2 (en) | 2017-01-05 | 2021-07-06 | Innovusion Ireland Limited | High resolution LiDAR using high frequency pulse firing |
WO2018129408A1 (en) | 2017-01-05 | 2018-07-12 | Innovusion Ireland Limited | Method and system for encoding and decoding lidar |
US10763290B2 (en) | 2017-02-22 | 2020-09-01 | Elwha Llc | Lidar scanning system |
WO2018156652A1 (en) | 2017-02-23 | 2018-08-30 | Richard Bishel | Vehicle guidance system |
WO2018160395A1 (en) * | 2017-02-28 | 2018-09-07 | Sri International | A systolic processor system for a light ranging system |
JP7134988B2 (en) * | 2017-03-01 | 2022-09-12 | アウスター インコーポレイテッド | Accurate photodetector measurements for lidar |
US11105925B2 (en) | 2017-03-01 | 2021-08-31 | Ouster, Inc. | Accurate photo detector measurements for LIDAR |
US11585899B2 (en) | 2017-03-01 | 2023-02-21 | Pointcloud Inc. | Modular three-dimensional optical sensing system |
JP6910820B2 (en) | 2017-03-02 | 2021-07-28 | 株式会社トプコン | Point cloud data processing device, point cloud data processing method, point cloud data processing program |
JP7037830B2 (en) | 2017-03-13 | 2022-03-17 | オプシス テック リミテッド | Eye safety scanning lidar system |
US10338594B2 (en) * | 2017-03-13 | 2019-07-02 | Nio Usa, Inc. | Navigation of autonomous vehicles to enhance safety under one or more fault conditions |
US11054507B2 (en) | 2017-03-15 | 2021-07-06 | Samsung Electronics Co., Ltd. | Method for detecting object and electronic device thereof |
US9810775B1 (en) | 2017-03-16 | 2017-11-07 | Luminar Technologies, Inc. | Q-switched laser for LIDAR system |
US9905992B1 (en) | 2017-03-16 | 2018-02-27 | Luminar Technologies, Inc. | Self-Raman laser for lidar system |
US9810786B1 (en) | 2017-03-16 | 2017-11-07 | Luminar Technologies, Inc. | Optical parametric oscillator for lidar system |
US10365351B2 (en) | 2017-03-17 | 2019-07-30 | Waymo Llc | Variable beam spacing, timing, and power for vehicle sensors |
WO2018175387A1 (en) * | 2017-03-20 | 2018-09-27 | Velodyne Lidar, Inc. | Lidar based 3-d imaging with structured light and integrated illumination and detection |
US10150432B2 (en) * | 2017-03-20 | 2018-12-11 | Ford Global Technologies, Llc | Autonomous vehicle conversion |
US9869754B1 (en) | 2017-03-22 | 2018-01-16 | Luminar Technologies, Inc. | Scan patterns for lidar systems |
WO2018175990A1 (en) * | 2017-03-23 | 2018-09-27 | Innovusion Ireland Limited | High resolution lidar using multi-stage multi-phase signal modulation, integration, sampling, and analysis |
US10479376B2 (en) | 2017-03-23 | 2019-11-19 | Uatc, Llc | Dynamic sensor selection for self-driving vehicles |
US10007001B1 (en) | 2017-03-28 | 2018-06-26 | Luminar Technologies, Inc. | Active short-wave infrared four-dimensional camera |
US10732281B2 (en) | 2017-03-28 | 2020-08-04 | Luminar Technologies, Inc. | Lidar detector system having range walk compensation |
US10139478B2 (en) | 2017-03-28 | 2018-11-27 | Luminar Technologies, Inc. | Time varying gain in an optical detector operating in a lidar system |
US11119198B2 (en) | 2017-03-28 | 2021-09-14 | Luminar, Llc | Increasing operational safety of a lidar system |
US10061019B1 (en) | 2017-03-28 | 2018-08-28 | Luminar Technologies, Inc. | Diffractive optical element in a lidar system to correct for backscan |
US10121813B2 (en) | 2017-03-28 | 2018-11-06 | Luminar Technologies, Inc. | Optical detector having a bandpass filter in a lidar system |
US10267899B2 (en) | 2017-03-28 | 2019-04-23 | Luminar Technologies, Inc. | Pulse timing based on angle of view |
US10254388B2 (en) | 2017-03-28 | 2019-04-09 | Luminar Technologies, Inc. | Dynamically varying laser output in a vehicle in view of weather conditions |
US10114111B2 (en) | 2017-03-28 | 2018-10-30 | Luminar Technologies, Inc. | Method for dynamically controlling laser power |
US10545240B2 (en) | 2017-03-28 | 2020-01-28 | Luminar Technologies, Inc. | LIDAR transmitter and detector system using pulse encoding to reduce range ambiguity |
US10209359B2 (en) | 2017-03-28 | 2019-02-19 | Luminar Technologies, Inc. | Adaptive pulse rate in a lidar system |
US10663595B2 (en) | 2017-03-29 | 2020-05-26 | Luminar Technologies, Inc. | Synchronized multiple sensor head system for a vehicle |
US10088559B1 (en) | 2017-03-29 | 2018-10-02 | Luminar Technologies, Inc. | Controlling pulse timing to compensate for motor dynamics |
US11181622B2 (en) | 2017-03-29 | 2021-11-23 | Luminar, Llc | Method for controlling peak and average power through laser receiver |
US10969488B2 (en) | 2017-03-29 | 2021-04-06 | Luminar Holdco, Llc | Dynamically scanning a field of regard using a limited number of output beams |
US11002853B2 (en) | 2017-03-29 | 2021-05-11 | Luminar, Llc | Ultrasonic vibrations on a window in a lidar system |
US10254762B2 (en) | 2017-03-29 | 2019-04-09 | Luminar Technologies, Inc. | Compensating for the vibration of the vehicle |
US10641874B2 (en) | 2017-03-29 | 2020-05-05 | Luminar Technologies, Inc. | Sizing the field of view of a detector to improve operation of a lidar system |
US10191155B2 (en) | 2017-03-29 | 2019-01-29 | Luminar Technologies, Inc. | Optical resolution in front of a vehicle |
US10983213B2 (en) | 2017-03-29 | 2021-04-20 | Luminar Holdco, Llc | Non-uniform separation of detector array elements in a lidar system |
US10976417B2 (en) | 2017-03-29 | 2021-04-13 | Luminar Holdco, Llc | Using detectors with different gains in a lidar system |
US10401481B2 (en) | 2017-03-30 | 2019-09-03 | Luminar Technologies, Inc. | Non-uniform beam power distribution for a laser operating in a vehicle |
US10295668B2 (en) | 2017-03-30 | 2019-05-21 | Luminar Technologies, Inc. | Reducing the number of false detections in a lidar system |
US10684360B2 (en) | 2017-03-30 | 2020-06-16 | Luminar Technologies, Inc. | Protecting detector in a lidar system using off-axis illumination |
US9989629B1 (en) | 2017-03-30 | 2018-06-05 | Luminar Technologies, Inc. | Cross-talk mitigation using wavelength switching |
US10241198B2 (en) | 2017-03-30 | 2019-03-26 | Luminar Technologies, Inc. | Lidar receiver calibration |
US20180284246A1 (en) | 2017-03-31 | 2018-10-04 | Luminar Technologies, Inc. | Using Acoustic Signals to Modify Operation of a Lidar System |
EP3602125A4 (en) * | 2017-03-31 | 2020-03-18 | Konica Minolta Laboratory U.S.A., Inc. | 3d imaging by multiple sensors during 3d printing |
US11022688B2 (en) | 2017-03-31 | 2021-06-01 | Luminar, Llc | Multi-eye lidar system |
US10641876B2 (en) | 2017-04-06 | 2020-05-05 | Quanergy Systems, Inc. | Apparatus and method for mitigating LiDAR interference through pulse coding and frequency shifting |
US10556585B1 (en) | 2017-04-13 | 2020-02-11 | Panosense Inc. | Surface normal determination for LIDAR range samples by detecting probe pulse stretching |
US10677897B2 (en) | 2017-04-14 | 2020-06-09 | Luminar Technologies, Inc. | Combining lidar and camera data |
CN110462423A (en) | 2017-04-21 | 2019-11-15 | 松下知识产权经营株式会社 | Apart from measuring device and moving body |
DE102017206909A1 (en) | 2017-04-25 | 2018-10-25 | Robert Bosch Gmbh | LIDAR system and method of operating the same |
WO2018196001A1 (en) * | 2017-04-28 | 2018-11-01 | SZ DJI Technology Co., Ltd. | Sensing assembly for autonomous driving |
US10423162B2 (en) | 2017-05-08 | 2019-09-24 | Nio Usa, Inc. | Autonomous vehicle logic to identify permissioned parking relative to multiple classes of restricted parking |
CA3063605A1 (en) | 2017-05-15 | 2018-11-22 | Ouster, Inc. | Optical imaging transmitter with brightness enhancement |
US10663584B2 (en) | 2017-05-26 | 2020-05-26 | Toyota Motor Engineering & Manufacturing North America, Inc. | Publishing LIDAR cluster data |
CN107168361B (en) * | 2017-05-26 | 2019-12-03 | 南京航空航天大学 | Quadrotor drone avoidance flight instruments and method based on the double-deck sonar sensor |
DE102017005395B4 (en) | 2017-06-06 | 2019-10-10 | Blickfeld GmbH | LIDAR distance measurement with scanner and FLASH light source |
EP3646057A1 (en) | 2017-06-29 | 2020-05-06 | Apple Inc. | Time-of-flight depth mapping with parallax compensation |
AU2018297291B2 (en) | 2017-07-05 | 2024-03-07 | Ouster, Inc. | Light ranging device with electronically scanned emitter array and synchronized sensor array |
US11300958B2 (en) * | 2017-07-13 | 2022-04-12 | Waymo Llc | Sensor adjustment based on vehicle motion |
US10369974B2 (en) | 2017-07-14 | 2019-08-06 | Nio Usa, Inc. | Control and coordination of driverless fuel replenishment for autonomous vehicles |
US10710633B2 (en) | 2017-07-14 | 2020-07-14 | Nio Usa, Inc. | Control of complex parking maneuvers and autonomous fuel replenishment of driverless vehicles |
KR102435970B1 (en) | 2017-07-28 | 2022-08-25 | 옵시스 테크 엘티디 | Vcsel array lidar transmitter with small angular divergence |
CN113341397A (en) * | 2017-08-15 | 2021-09-03 | 百度在线网络技术(北京)有限公司 | Reflection value map construction method and device |
US10670722B2 (en) | 2017-08-15 | 2020-06-02 | Samsung Electronics Co., Ltd. | Increase depth resolution and depth accuracy in ToF sensors by avoiding histogrammization |
US10775488B2 (en) | 2017-08-17 | 2020-09-15 | Uatc, Llc | Calibration for an autonomous vehicle LIDAR module |
US10746858B2 (en) | 2017-08-17 | 2020-08-18 | Uatc, Llc | Calibration for an autonomous vehicle LIDAR module |
US11029393B2 (en) | 2017-08-22 | 2021-06-08 | Turro Llc | Dual-axis resonate light beam steering mirror system and method for use in LIDAR |
AU2018322489A1 (en) | 2017-08-25 | 2020-03-12 | Baraja Pty Ltd | Estimation of spatial profile of environment |
US10890650B2 (en) | 2017-09-05 | 2021-01-12 | Waymo Llc | LIDAR with co-aligned transmit and receive paths |
DE102017215671A1 (en) | 2017-09-06 | 2019-03-07 | Robert Bosch Gmbh | Scanning system and transmitting and receiving device for a scanning system |
CA3074245A1 (en) | 2017-09-06 | 2019-03-14 | Baraja Pty Ltd | An optical beam director |
US10838048B2 (en) * | 2017-09-08 | 2020-11-17 | Quanergy Systems, Inc. | Apparatus and method for selective disabling of LiDAR detector array elements |
KR20200098480A (en) | 2017-09-13 | 2020-08-20 | 벨로다인 라이더, 인크. | Multi-resolution, simultaneous position measurement and mapping based on 3-D LIDAR measurements |
JP7089586B2 (en) * | 2017-09-18 | 2022-06-22 | ベロダイン ライダー ユーエスエー,インコーポレイテッド | LIDAR signal collection |
JP7025156B2 (en) | 2017-09-19 | 2022-02-24 | 株式会社トプコン | Data processing equipment, data processing method and data processing program |
US10955552B2 (en) | 2017-09-27 | 2021-03-23 | Apple Inc. | Waveform design for a LiDAR system with closely-spaced pulses |
US11567175B2 (en) | 2017-09-29 | 2023-01-31 | Infineon Technologies Ag | Apparatuses and method for light detection and ranging |
JP7109174B2 (en) | 2017-10-03 | 2022-07-29 | 株式会社トプコン | Route selection device, unmanned aircraft, data processing device, route selection processing method, and route selection processing program |
JP7022559B2 (en) | 2017-10-17 | 2022-02-18 | 株式会社トプコン | Unmanned aerial vehicle control method and unmanned aerial vehicle control program |
US10003168B1 (en) | 2017-10-18 | 2018-06-19 | Luminar Technologies, Inc. | Fiber laser with free-space components |
EP3698168A4 (en) | 2017-10-19 | 2021-07-21 | Innovusion Ireland Limited | Lidar with large dynamic range |
DE102017220397A1 (en) * | 2017-11-15 | 2019-05-16 | Osram Gmbh | DISTANCE MEASURING DEVICE |
EP3710855A4 (en) | 2017-11-15 | 2021-08-04 | Opsys Tech Ltd. | Noise adaptive solid-state lidar system |
US10663585B2 (en) | 2017-11-22 | 2020-05-26 | Luminar Technologies, Inc. | Manufacturing a balanced polygon mirror |
US10451716B2 (en) | 2017-11-22 | 2019-10-22 | Luminar Technologies, Inc. | Monitoring rotation of a mirror in a lidar system |
US10634772B2 (en) | 2017-11-27 | 2020-04-28 | Atieva, Inc. | Flash lidar with adaptive illumination |
US11353556B2 (en) | 2017-12-07 | 2022-06-07 | Ouster, Inc. | Light ranging device with a multi-element bulk lens system |
US10690773B2 (en) | 2017-12-07 | 2020-06-23 | Velodyne Lidar, Inc. | Systems and methods for efficient multi-return light detectors |
CN109901188A (en) * | 2017-12-07 | 2019-06-18 | 鸿富锦精密工业(深圳)有限公司 | Laser ranging system |
US11294041B2 (en) * | 2017-12-08 | 2022-04-05 | Velodyne Lidar Usa, Inc. | Systems and methods for improving detection of a return signal in a light ranging and detection system |
US10942244B2 (en) * | 2017-12-12 | 2021-03-09 | Waymo Llc | Systems and methods for LIDARs with adjustable resolution and failsafe operation |
DE102017222614A1 (en) | 2017-12-13 | 2019-06-13 | Robert Bosch Gmbh | Device for environmental detection and method for its operation |
KR102403544B1 (en) | 2017-12-18 | 2022-05-30 | 애플 인크. | Time-of-flight sensing using an addressable array of emitters |
US11493601B2 (en) | 2017-12-22 | 2022-11-08 | Innovusion, Inc. | High density LIDAR scanning |
DE102017223673A1 (en) * | 2017-12-22 | 2019-06-27 | Robert Bosch Gmbh | LIDAR system for capturing an object |
WO2019139895A1 (en) | 2018-01-09 | 2019-07-18 | Innovusion Ireland Limited | Lidar detection systems and methods that use multi-plane mirrors |
US11675050B2 (en) | 2018-01-09 | 2023-06-13 | Innovusion, Inc. | LiDAR detection systems and methods |
CN112020660A (en) | 2018-01-10 | 2020-12-01 | 威力登激光雷达有限公司 | LIDAR-based distance measurement with layered power control |
US11022971B2 (en) | 2018-01-16 | 2021-06-01 | Nio Usa, Inc. | Event data recordation to identify and resolve anomalies associated with control of driverless vehicles |
US10903621B2 (en) * | 2018-01-22 | 2021-01-26 | Argo AI, LLC | Circuit for driving a laser and method therefor |
DE112019000243B4 (en) | 2018-01-31 | 2024-02-22 | Robert Bosch Gmbh | Lidar transit time and intensity detection signal path based on phase encoded multiple pulse transmission and oversampled single bit optimal filter detection |
US10914820B2 (en) | 2018-01-31 | 2021-02-09 | Uatc, Llc | Sensor assembly for vehicles |
US11782141B2 (en) | 2018-02-05 | 2023-10-10 | Centre Interdisciplinaire De Developpement En Cartographie Des Oceans (Cidco) | Method and apparatus for automatic calibration of mobile LiDAR systems |
DE102018202246A1 (en) * | 2018-02-14 | 2019-08-14 | Robert Bosch Gmbh | LiDAR system, operating procedure for a LiDAR system and working device |
DE102018202303B4 (en) * | 2018-02-15 | 2022-06-15 | Robert Bosch Gmbh | Sensor system for mounting a sensor array on a vehicle |
WO2019164961A1 (en) | 2018-02-21 | 2019-08-29 | Innovusion Ireland Limited | Lidar systems with fiber optic coupling |
WO2019165130A1 (en) | 2018-02-21 | 2019-08-29 | Innovusion Ireland Limited | Lidar detection systems and methods with high repetition rate to observe far objects |
WO2020013890A2 (en) | 2018-02-23 | 2020-01-16 | Innovusion Ireland Limited | Multi-wavelength pulse steering in lidar systems |
US11422234B2 (en) | 2018-02-23 | 2022-08-23 | Innovusion, Inc. | Distributed lidar systems |
CN112292608B (en) | 2018-02-23 | 2024-09-20 | 图达通智能美国有限公司 | Two-dimensional manipulation system for LIDAR systems |
US11567182B2 (en) | 2018-03-09 | 2023-01-31 | Innovusion, Inc. | LiDAR safety systems and methods |
CN108387908A (en) * | 2018-03-13 | 2018-08-10 | 成都楼兰科技有限公司 | Laser radar optical texture and laser radar apparatus |
US10768281B2 (en) * | 2018-03-20 | 2020-09-08 | Panosense Inc. | Detecting a laser pulse edge for real time detection |
US10830880B2 (en) | 2018-03-20 | 2020-11-10 | Panosense Inc. | Selecting LIDAR pulse detector depending on pulse type |
US10830881B2 (en) * | 2018-03-20 | 2020-11-10 | Panosense Inc. | Active signal detection using adaptive identification of a noise floor |
WO2019195054A1 (en) | 2018-04-01 | 2019-10-10 | OPSYS Tech Ltd. | Noise adaptive solid-state lidar system |
US10578720B2 (en) | 2018-04-05 | 2020-03-03 | Luminar Technologies, Inc. | Lidar system with a polygon mirror and a noise-reducing feature |
US11029406B2 (en) | 2018-04-06 | 2021-06-08 | Luminar, Llc | Lidar system with AlInAsSb avalanche photodiode |
US11289873B2 (en) | 2018-04-09 | 2022-03-29 | Innovusion Ireland Limited | LiDAR systems and methods for exercising precise control of a fiber laser |
US11789132B2 (en) | 2018-04-09 | 2023-10-17 | Innovusion, Inc. | Compensation circuitry for lidar receiver systems and method of use thereof |
US10348051B1 (en) | 2018-05-18 | 2019-07-09 | Luminar Technologies, Inc. | Fiber-optic amplifier |
US10928485B1 (en) | 2018-05-22 | 2021-02-23 | Panosense Inc. | Lidar ring lens return filtering |
CN108802710A (en) * | 2018-06-06 | 2018-11-13 | 复旦大学 | Flash of light laser acquisition based on vertical cavity surface emitting laser and measuring system |
US20210247497A1 (en) * | 2018-06-07 | 2021-08-12 | Baraja Pty Ltd | An optical beam director |
WO2019237581A1 (en) * | 2018-06-13 | 2019-12-19 | Hesai Photonics Technology Co., Ltd. | Lidar systems and methods |
JP7190667B2 (en) | 2018-06-14 | 2022-12-16 | パナソニックIpマネジメント株式会社 | object detector |
CN114114295A (en) | 2018-06-15 | 2022-03-01 | 图达通爱尔兰有限公司 | LIDAR system and method for focusing a range of interest |
US10796457B2 (en) | 2018-06-26 | 2020-10-06 | Intel Corporation | Image-based compression of LIDAR sensor data with point re-ordering |
US10591601B2 (en) | 2018-07-10 | 2020-03-17 | Luminar Technologies, Inc. | Camera-gated lidar system |
US10627516B2 (en) * | 2018-07-19 | 2020-04-21 | Luminar Technologies, Inc. | Adjustable pulse characteristics for ground detection in lidar systems |
WO2020015748A1 (en) * | 2018-07-20 | 2020-01-23 | Suteng Innovation Technology Co., Ltd. | Systems and methods for lidar detection |
US10739189B2 (en) * | 2018-08-09 | 2020-08-11 | Ouster, Inc. | Multispectral ranging/imaging sensor arrays and systems |
US10551501B1 (en) | 2018-08-09 | 2020-02-04 | Luminar Technologies, Inc. | Dual-mode lidar system |
US10732032B2 (en) | 2018-08-09 | 2020-08-04 | Ouster, Inc. | Scanning sensor array with overlapping pass bands |
WO2020033161A1 (en) * | 2018-08-10 | 2020-02-13 | Blackmore Sensors & Analytics, Llc | Method and system for scanning of coherent lidar with fan of collimated beams |
US10340651B1 (en) | 2018-08-21 | 2019-07-02 | Luminar Technologies, Inc. | Lidar system with optical trigger |
US11860316B1 (en) | 2018-08-21 | 2024-01-02 | Innovusion, Inc. | Systems and method for debris and water obfuscation compensation for use in LiDAR systems |
US11579300B1 (en) | 2018-08-21 | 2023-02-14 | Innovusion, Inc. | Dual lens receive path for LiDAR system |
US20210349189A1 (en) | 2018-08-22 | 2021-11-11 | Josephus M. van Seeters | Detection Systems, Communications Systems and Induction Motors |
US11971507B2 (en) * | 2018-08-24 | 2024-04-30 | Velodyne Lidar Usa, Inc. | Systems and methods for mitigating optical crosstalk in a light ranging and detection system |
US11796645B1 (en) | 2018-08-24 | 2023-10-24 | Innovusion, Inc. | Systems and methods for tuning filters for use in lidar systems |
US11614526B1 (en) | 2018-08-24 | 2023-03-28 | Innovusion, Inc. | Virtual windows for LIDAR safety systems and methods |
US11579258B1 (en) | 2018-08-30 | 2023-02-14 | Innovusion, Inc. | Solid state pulse steering in lidar systems |
CN110940990A (en) * | 2018-09-21 | 2020-03-31 | 宁波舜宇车载光学技术有限公司 | Laser radar system and detection method and application thereof |
CA3113404C (en) * | 2018-10-02 | 2022-06-14 | Blackmore Sensors & Analytics, Llc | Method and system for optimizing scanning of coherent lidar |
US11086018B2 (en) * | 2018-10-22 | 2021-08-10 | The Government of the United States of America, as represented by the Secretary of Homeland Security | Orbiting actuated three-dimensional spinning sensor |
US10931175B2 (en) | 2018-10-31 | 2021-02-23 | Waymo Llc | Magnet ring with jittered poles |
US11536845B2 (en) | 2018-10-31 | 2022-12-27 | Waymo Llc | LIDAR systems with multi-faceted mirrors |
US11474211B2 (en) | 2018-11-01 | 2022-10-18 | Waymo Llc | Optimized high speed lidar mirror design |
CN113167866B (en) | 2018-11-14 | 2024-08-13 | 图达通智能美国有限公司 | LIDAR system and method using a polygon mirror |
WO2020109633A1 (en) | 2018-11-27 | 2020-06-04 | Aerolaser System S.L. | Airborne colour optical scanner |
US11506731B2 (en) | 2018-11-27 | 2022-11-22 | Waymo Llc | Motor and rotary transformer with shared magnetic core |
US11573324B2 (en) | 2018-11-28 | 2023-02-07 | Texas Instruments Incorporated | Lidar imaging receiver |
US11709231B2 (en) | 2018-12-21 | 2023-07-25 | Infineon Technologies Ag | Real time gating and signal routing in laser and detector arrays for LIDAR application |
US11585906B2 (en) | 2018-12-26 | 2023-02-21 | Ouster, Inc. | Solid-state electronic scanning laser array with high-side and low-side switches for increased channels |
FR3091525B1 (en) | 2019-01-04 | 2021-01-29 | Balyo | Self-guided handling equipment incorporating detection means |
WO2020146493A1 (en) | 2019-01-10 | 2020-07-16 | Innovusion Ireland Limited | Lidar systems and methods with beam steering and wide angle signal detection |
CN109633607B (en) * | 2019-01-14 | 2023-12-22 | 山东省科学院海洋仪器仪表研究所 | Laser radar large-caliber double-shaft optical scanning rotating mirror system |
US11391574B2 (en) | 2019-01-18 | 2022-07-19 | Ford Global Technologies, Llc | Object detection |
US10935637B2 (en) * | 2019-01-29 | 2021-03-02 | Cepton Technologies, Inc. | Lidar system including a transceiver array |
US11378970B2 (en) | 2019-02-05 | 2022-07-05 | International Business Machines Corporation | Visual localization support system |
US11774561B2 (en) | 2019-02-08 | 2023-10-03 | Luminar Technologies, Inc. | Amplifier input protection circuits |
KR102604902B1 (en) | 2019-02-11 | 2023-11-21 | 애플 인크. | Depth sensing using sparse arrays of pulsed beams |
US11486970B1 (en) | 2019-02-11 | 2022-11-01 | Innovusion, Inc. | Multiple beam generation from a single source beam for use with a LiDAR system |
US11550059B2 (en) | 2019-02-22 | 2023-01-10 | Garmin Switzerland Gmbh | Three-dimensional scanning LIDAR system comprising a receiver channel primary collection lens and an electronically-controllable mirror array selectively direct a directed portion of reflected scanning signal |
EP3712647B1 (en) | 2019-03-18 | 2021-04-28 | Sick Ag | Optoelectronic sensor and method for detecting objects |
US11579299B2 (en) | 2019-04-02 | 2023-02-14 | Litexel Inc. | 3D range imaging method using optical phased array and photo sensor array |
US11977185B1 (en) | 2019-04-04 | 2024-05-07 | Seyond, Inc. | Variable angle polygon for use with a LiDAR system |
CN113692540A (en) | 2019-04-09 | 2021-11-23 | 欧普赛斯技术有限公司 | Solid-state LIDAR transmitter with laser control |
CN110832345A (en) * | 2019-04-15 | 2020-02-21 | 深圳市速腾聚创科技有限公司 | Laser radar |
CN109917350A (en) * | 2019-04-15 | 2019-06-21 | 上海禾赛光电科技有限公司 | Laser radar and laser detection equipment |
US12013493B2 (en) | 2019-04-26 | 2024-06-18 | Continental Autonomous Mobility US, LLC | Lidar system including light emitter for multiple receiving units |
KR20220003600A (en) | 2019-05-30 | 2022-01-10 | 옵시스 테크 엘티디 | Eye-safe long-distance LIDAR system using actuators |
US11500094B2 (en) | 2019-06-10 | 2022-11-15 | Apple Inc. | Selection of pulse repetition intervals for sensing time of flight |
KR102637658B1 (en) | 2019-06-10 | 2024-02-20 | 옵시스 테크 엘티디 | Eye-safe long-range solid-state LIDAR system |
EP3990943A4 (en) | 2019-06-25 | 2023-07-05 | Opsys Tech Ltd. | Adaptive multiple-pulse lidar system |
US10613203B1 (en) | 2019-07-01 | 2020-04-07 | Velodyne Lidar, Inc. | Interference mitigation for light detection and ranging |
JP7300915B2 (en) | 2019-07-16 | 2023-06-30 | 株式会社トプコン | surveying equipment |
US11555900B1 (en) | 2019-07-17 | 2023-01-17 | Apple Inc. | LiDAR system with enhanced area coverage |
JP7313955B2 (en) | 2019-07-30 | 2023-07-25 | 株式会社トプコン | Surveying instrument, surveying method and surveying program |
JP7300930B2 (en) | 2019-08-26 | 2023-06-30 | 株式会社トプコン | Survey data processing device, survey data processing method and program for survey data processing |
US11075502B2 (en) | 2019-08-29 | 2021-07-27 | Analog Devices, Inc. | Laser diode driver circuit techniques |
JP7313998B2 (en) | 2019-09-18 | 2023-07-25 | 株式会社トプコン | Survey data processing device, survey data processing method and program for survey data processing |
US11271556B2 (en) | 2019-09-19 | 2022-03-08 | Analog Devices International Unlimited Company | Modular analog signal multiplexers for differential signals |
US11042025B2 (en) | 2019-09-20 | 2021-06-22 | Raytheon Company | Optical data communication using micro-electro-mechanical system (MEMS) micro-mirror arrays |
DE102019125684B4 (en) | 2019-09-24 | 2022-07-28 | Sick Ag | Photoelectric sensor and method for detecting objects |
US11573302B2 (en) * | 2019-10-17 | 2023-02-07 | Argo AI, LLC | LiDAR system comprising a Geiger-mode avalanche photodiode-based receiver having pixels with multiple-return capability |
KR20210046466A (en) | 2019-10-18 | 2021-04-28 | 현대자동차주식회사 | Liquid crystal based optical deflector and optical scanner using the same |
US11733359B2 (en) | 2019-12-03 | 2023-08-22 | Apple Inc. | Configurable array of single-photon detectors |
US11506786B2 (en) | 2020-02-14 | 2022-11-22 | Arete Associates | Laser detection and ranging |
KR102385020B1 (en) * | 2020-02-17 | 2022-04-14 | 주식회사 라이다스 | Optical system for lidar system |
US11573294B2 (en) | 2020-03-17 | 2023-02-07 | Litexel Inc. | Switched optical phased array based beam steering LiDAR |
DE102020208127A1 (en) | 2020-06-30 | 2021-12-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Lidar arrangement |
JP7294256B2 (en) * | 2020-07-03 | 2023-06-20 | トヨタ自動車株式会社 | Laser radar mounting method |
CN213934212U (en) * | 2020-07-17 | 2021-08-10 | 中国工程物理研究院应用电子学研究所 | Three-dimensional target imaging laser radar device |
CN112021998B (en) * | 2020-07-20 | 2023-08-29 | 科沃斯机器人股份有限公司 | Data processing method, measurement system, autonomous mobile device and cleaning robot |
US11539131B2 (en) | 2020-08-24 | 2022-12-27 | Raytheon Company | Optical true time delay (TTD) device using microelectrical-mechanical system (MEMS) micromirror arrays (MMAS) that exhibit tip/tilt/piston (TTP) actuation |
US11837840B2 (en) | 2020-09-01 | 2023-12-05 | Raytheon Company | MEMS micro-mirror array laser beam steerer for simultaneous illumination of multiple tracked targets |
US11815676B2 (en) | 2020-09-17 | 2023-11-14 | Raytheon Company | Active pushbroom imaging system using a micro-electro-mechanical system (MEMS) micro-mirror array (MMA) |
US11522331B2 (en) | 2020-09-23 | 2022-12-06 | Raytheon Company | Coherent optical beam combination using micro-electro-mechanical system (MEMS) micro-mirror arrays (MMAs) that exhibit tip/tilt/piston (TTP) actuation |
US12066574B2 (en) | 2021-01-15 | 2024-08-20 | Raytheon Company | Optical system for object detection and location using a Micro-Electro-Mechanical System (MEMS) Micro-Mirror Array (MMA) beamsteering device |
US11477350B2 (en) | 2021-01-15 | 2022-10-18 | Raytheon Company | Active imaging using a micro-electro-mechanical system (MEMS) micro-mirror array (MMA) |
US11550146B2 (en) | 2021-01-19 | 2023-01-10 | Raytheon Company | Small angle optical beam steering using micro-electro-mechanical system (MEMS) micro-mirror arrays (MMAS) |
US11835709B2 (en) | 2021-02-09 | 2023-12-05 | Raytheon Company | Optical sensor with micro-electro-mechanical system (MEMS) micro-mirror array (MMA) steering of the optical transmit beam |
US12061289B2 (en) | 2021-02-16 | 2024-08-13 | Innovusion, Inc. | Attaching a glass mirror to a rotating metal motor frame |
US12025790B2 (en) | 2021-02-17 | 2024-07-02 | Raytheon Company | Micro-electro-mechanical system (MEMS) micro-mirror array (MMA) and off-axis parabola (OAP) steered active situational awareness sensor |
US11422267B1 (en) | 2021-02-18 | 2022-08-23 | Innovusion, Inc. | Dual shaft axial flux motor for optical scanners |
US11789128B2 (en) | 2021-03-01 | 2023-10-17 | Innovusion, Inc. | Fiber-based transmitter and receiver channels of light detection and ranging systems |
US11921284B2 (en) | 2021-03-19 | 2024-03-05 | Raytheon Company | Optical zoom system using an adjustable reflective fresnel lens implemented with a micro-electro-mechanical system (MEMs) micro-mirror array (MMA) |
US11483500B2 (en) | 2021-03-24 | 2022-10-25 | Raytheon Company | Optical non-uniformity compensation (NUC) for passive imaging sensors using micro-electro-mechanical system (MEMS) micro-mirror arrays (MMAS) |
US20220317258A1 (en) * | 2021-03-31 | 2022-10-06 | Gm Cruise Holdings Llc | Optical method for shaping the transmit beam profile of a flash lidar system |
US12061334B2 (en) | 2021-04-15 | 2024-08-13 | Raytheon Company | Optical scanning system using micro-electro-mechanical system (mems) micro-mirror arrays (MMAs) |
US11555895B2 (en) | 2021-04-20 | 2023-01-17 | Innovusion, Inc. | Dynamic compensation to polygon and motor tolerance using galvo control profile |
US11614521B2 (en) | 2021-04-21 | 2023-03-28 | Innovusion, Inc. | LiDAR scanner with pivot prism and mirror |
EP4305450A1 (en) | 2021-04-22 | 2024-01-17 | Innovusion, Inc. | A compact lidar design with high resolution and ultra-wide field of view |
WO2022225859A1 (en) | 2021-04-22 | 2022-10-27 | Innovusion, Inc. | A compact lidar design with high resolution and ultra-wide field of view |
EP4314885A1 (en) | 2021-05-12 | 2024-02-07 | Innovusion, Inc. | Systems and apparatuses for mitigating lidar noise, vibration, and harshness |
EP4314884A1 (en) | 2021-05-21 | 2024-02-07 | Innovusion, Inc. | Movement profiles for smart scanning using galvonometer mirror inside lidar scanner |
CN113189609A (en) * | 2021-05-31 | 2021-07-30 | 阿波罗智联(北京)科技有限公司 | Base, roadside sensing equipment and intelligent transportation system |
US11768294B2 (en) | 2021-07-09 | 2023-09-26 | Innovusion, Inc. | Compact lidar systems for vehicle contour fitting |
US11681028B2 (en) | 2021-07-18 | 2023-06-20 | Apple Inc. | Close-range measurement of time of flight using parallax shift |
US20230051475A1 (en) * | 2021-08-13 | 2023-02-16 | Lumentum Operations Llc | Driver circuit for evaluation of an optical emitter |
US12072451B2 (en) * | 2021-11-17 | 2024-08-27 | Waymo Llc | Methods for detecting LIDAR aperture fouling |
CN216356147U (en) | 2021-11-24 | 2022-04-19 | 图达通智能科技(苏州)有限公司 | Vehicle-mounted laser radar motor, vehicle-mounted laser radar and vehicle |
WO2023097889A1 (en) * | 2021-12-01 | 2023-06-08 | 威刚科技股份有限公司 | Unmanned mobile carrier and guidance and obstacle avoidance method for environmental field |
US11871130B2 (en) | 2022-03-25 | 2024-01-09 | Innovusion, Inc. | Compact perception device |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4834531A (en) * | 1985-10-31 | 1989-05-30 | Energy Optics, Incorporated | Dead reckoning optoelectronic intelligent docking system |
US4862257A (en) * | 1988-07-07 | 1989-08-29 | Kaman Aerospace Corporation | Imaging lidar system |
AUPP299498A0 (en) * | 1998-04-15 | 1998-05-07 | Commonwealth Scientific And Industrial Research Organisation | Method of tracking and sensing position of objects |
DE50002356D1 (en) * | 1999-03-18 | 2003-07-03 | Siemens Ag | LOCAL DISTANCE MEASURING SYSTEM |
US6836285B1 (en) * | 1999-09-03 | 2004-12-28 | Arete Associates | Lidar with streak-tube imaging,including hazard detection in marine applications; related optics |
US6593582B2 (en) * | 2001-05-11 | 2003-07-15 | Science & Engineering Services, Inc. | Portable digital lidar system |
US6646725B1 (en) * | 2001-07-11 | 2003-11-11 | Iowa Research Foundation | Multiple beam lidar system for wind measurement |
US6556282B2 (en) * | 2001-09-04 | 2003-04-29 | Rosemount Aerospace, Inc. | Combined LOAS and LIDAR system |
AT412028B (en) * | 2001-11-09 | 2004-08-26 | Riegl Laser Measurement Sys | DEVICE FOR RECORDING AN OBJECT SPACE |
US7248342B1 (en) * | 2003-02-14 | 2007-07-24 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Three-dimension imaging lidar |
US7688374B2 (en) * | 2004-12-20 | 2010-03-30 | The United States Of America As Represented By The Secretary Of The Army | Single axis CCD time gated ladar sensor |
US20060197867A1 (en) * | 2005-03-02 | 2006-09-07 | Peter Johnson | Imaging head and imaging system |
US8050863B2 (en) * | 2006-03-16 | 2011-11-01 | Gray & Company, Inc. | Navigation and control system for autonomous vehicles |
US7701558B2 (en) * | 2006-09-22 | 2010-04-20 | Leica Geosystems Ag | LIDAR system |
-
2007
- 2007-07-13 EP EP07840406A patent/EP2041515A4/en not_active Withdrawn
- 2007-07-13 CN CN200780030113A patent/CN101688774A/en active Pending
- 2007-07-13 WO PCT/US2007/073490 patent/WO2008008970A2/en active Application Filing
- 2007-07-13 US US11/777,802 patent/US7969558B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of EP2041515A4 * |
Cited By (144)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE48688E1 (en) | 2006-07-13 | 2021-08-17 | Velodyne Lidar Usa, Inc. | High definition LiDAR system |
US8767190B2 (en) | 2006-07-13 | 2014-07-01 | Velodyne Acoustics, Inc. | High definition LiDAR system |
USRE46672E1 (en) | 2006-07-13 | 2018-01-16 | Velodyne Lidar, Inc. | High definition LiDAR system |
USRE47942E1 (en) | 2006-07-13 | 2020-04-14 | Velodyne Lindar, Inc. | High definition lidar system |
USRE48491E1 (en) | 2006-07-13 | 2021-03-30 | Velodyne Lidar Usa, Inc. | High definition lidar system |
USRE48490E1 (en) | 2006-07-13 | 2021-03-30 | Velodyne Lidar Usa, Inc. | High definition LiDAR system |
USRE48504E1 (en) | 2006-07-13 | 2021-04-06 | Velodyne Lidar Usa, Inc. | High definition LiDAR system |
USRE48503E1 (en) | 2006-07-13 | 2021-04-06 | Velodyne Lidar Usa, Inc. | High definition LiDAR system |
USRE48666E1 (en) | 2006-07-13 | 2021-08-03 | Velodyne Lidar Usa, Inc. | High definition LiDAR system |
US8670130B2 (en) | 2010-04-22 | 2014-03-11 | Kabushiki Kaisha Topcon | Laser scanner |
EP2381272A1 (en) | 2010-04-22 | 2011-10-26 | Kabushiki Kaisha Topcon | Laser scanner |
EP2388615A1 (en) * | 2010-05-17 | 2011-11-23 | Velodyne Acoustics, Inc. | High definition lidar system |
US9885778B2 (en) | 2014-08-15 | 2018-02-06 | Aeye, Inc. | Method and system for scanning ladar transmission with pulse modulation |
US9897689B2 (en) | 2014-08-15 | 2018-02-20 | Aeye, Inc. | Method and system for ladar transmission with interline skipping for dynamic scan patterns |
US10073166B2 (en) | 2014-08-15 | 2018-09-11 | Aeye, Inc. | Method and system for ladar transmission with spinning polygon mirror for dynamic scan patterns |
US10078133B2 (en) | 2014-08-15 | 2018-09-18 | Aeye, Inc. | Method and system for ladar transmission with closed loop feedback control of dynamic scan patterns |
US10088558B2 (en) | 2014-08-15 | 2018-10-02 | Aeye, Inc. | Method and system for ladar transmission with spiral dynamic scan patterns |
US10042043B2 (en) | 2014-08-15 | 2018-08-07 | Aeye, Inc. | Method and system for ladar transmission employing dynamic scan patterns with macro patterns and base patterns |
US10386464B2 (en) | 2014-08-15 | 2019-08-20 | Aeye, Inc. | Ladar point cloud compression |
US10908265B2 (en) | 2014-08-15 | 2021-02-02 | Aeye, Inc. | Ladar transmitter with feedback control of dynamic scan patterns |
US10215848B2 (en) | 2014-08-15 | 2019-02-26 | Aeye, Inc. | Method and system for ladar transmission with interline detouring for dynamic scan patterns |
USRE48961E1 (en) * | 2015-03-25 | 2022-03-08 | Waymo Llc | Vehicle with multiple light detection and ranging devices (LIDARs) |
US11698443B2 (en) | 2016-01-31 | 2023-07-11 | Velodyne Lidar Usa, Inc. | Multiple pulse, lidar based 3-D imaging |
US11137480B2 (en) | 2016-01-31 | 2021-10-05 | Velodyne Lidar Usa, Inc. | Multiple pulse, LIDAR based 3-D imaging |
US11550036B2 (en) | 2016-01-31 | 2023-01-10 | Velodyne Lidar Usa, Inc. | Multiple pulse, LIDAR based 3-D imaging |
US11822012B2 (en) | 2016-01-31 | 2023-11-21 | Velodyne Lidar Usa, Inc. | Multiple pulse, LIDAR based 3-D imaging |
US10642029B2 (en) | 2016-02-18 | 2020-05-05 | Aeye, Inc. | Ladar transmitter with ellipsoidal reimager |
US10641872B2 (en) | 2016-02-18 | 2020-05-05 | Aeye, Inc. | Ladar receiver with advanced optics |
US11693099B2 (en) | 2016-02-18 | 2023-07-04 | Aeye, Inc. | Method and apparatus for an adaptive ladar receiver |
US11726315B2 (en) | 2016-02-18 | 2023-08-15 | Aeye, Inc. | Ladar transmitter with ellipsoidal reimager |
US10761196B2 (en) | 2016-02-18 | 2020-09-01 | Aeye, Inc. | Adaptive ladar receiving method |
US12078798B2 (en) | 2016-02-18 | 2024-09-03 | Aeye, Inc. | Ladar transmitter with ellipsoidal reimager |
US11300779B2 (en) | 2016-02-18 | 2022-04-12 | Aeye, Inc. | Ladar transmitter with ellipsoidal reimager |
US11175386B2 (en) | 2016-02-18 | 2021-11-16 | Aeye, Inc. | Ladar system with adaptive receiver |
US10641873B2 (en) | 2016-02-18 | 2020-05-05 | Aeye, Inc. | Method and apparatus for an adaptive ladar receiver |
US10754015B2 (en) | 2016-02-18 | 2020-08-25 | Aeye, Inc. | Adaptive ladar receiver |
US10042159B2 (en) | 2016-02-18 | 2018-08-07 | Aeye, Inc. | Ladar transmitter with optical field splitter/inverter |
US10782393B2 (en) | 2016-02-18 | 2020-09-22 | Aeye, Inc. | Ladar receiver range measurement using distinct optical path for reference light |
US9933513B2 (en) | 2016-02-18 | 2018-04-03 | Aeye, Inc. | Method and apparatus for an adaptive ladar receiver |
US10908262B2 (en) | 2016-02-18 | 2021-02-02 | Aeye, Inc. | Ladar transmitter with optical field splitter/inverter for improved gaze on scan area portions |
US11073617B2 (en) | 2016-03-19 | 2021-07-27 | Velodyne Lidar Usa, Inc. | Integrated illumination and detection for LIDAR based 3-D imaging |
EP3437536B1 (en) | 2016-05-02 | 2020-05-13 | Samsung Electronics Co., Ltd. | Cleaning robot and control method therefor |
US11067998B2 (en) | 2016-05-02 | 2021-07-20 | Samsung Electronics Co., Ltd. | Cleaning robot and control method therefor |
US11803190B2 (en) | 2016-05-02 | 2023-10-31 | Samsung Electronics Co., Ltd. | Cleaning robot and control method therefor |
US10838062B2 (en) | 2016-05-24 | 2020-11-17 | Veoneer Us, Inc. | Direct detection LiDAR system and method with pulse amplitude modulation (AM) transmitter and quadrature receiver |
US10473784B2 (en) | 2016-05-24 | 2019-11-12 | Veoneer Us, Inc. | Direct detection LiDAR system and method with step frequency modulation (FM) pulse-burst envelope modulation transmission and quadrature demodulation |
US10416292B2 (en) | 2016-05-24 | 2019-09-17 | Veoneer Us, Inc. | Direct detection LiDAR system and method with frequency modulation (FM) transmitter and quadrature receiver |
US11808854B2 (en) | 2016-06-01 | 2023-11-07 | Velodyne Lidar Usa, Inc. | Multiple pixel scanning LIDAR |
US11550056B2 (en) | 2016-06-01 | 2023-01-10 | Velodyne Lidar Usa, Inc. | Multiple pixel scanning lidar |
US11874377B2 (en) | 2016-06-01 | 2024-01-16 | Velodyne Lidar Usa, Inc. | Multiple pixel scanning LIDAR |
US10983218B2 (en) | 2016-06-01 | 2021-04-20 | Velodyne Lidar Usa, Inc. | Multiple pixel scanning LIDAR |
US11561305B2 (en) | 2016-06-01 | 2023-01-24 | Velodyne Lidar Usa, Inc. | Multiple pixel scanning LIDAR |
CN106199556A (en) * | 2016-06-24 | 2016-12-07 | 南京理工大学 | A kind of rotating scanning device of autonomous driving mobile lidar |
CN106199556B (en) * | 2016-06-24 | 2019-01-18 | 南京理工大学 | A kind of rotating scanning device of autonomous driving mobile lidar |
DE102016220708A1 (en) | 2016-10-21 | 2018-04-26 | Volkswagen Aktiengesellschaft | Lidar sensor and method for optically sensing an environment |
US11041942B2 (en) | 2016-10-21 | 2021-06-22 | Volkswagen Aktiengesellschaft | Lidar-sensor and method for optical scanning of an environment |
JP2020506400A (en) * | 2016-12-30 | 2020-02-27 | パノセンス インコーポレイテッド | Laser power calibration and correction |
WO2018125825A1 (en) * | 2016-12-30 | 2018-07-05 | Panosense, Inc. | Laser power calibration and correction |
CN110168402A (en) * | 2016-12-30 | 2019-08-23 | 帕诺森斯有限公司 | Laser power calibration and correction |
US11231490B2 (en) | 2016-12-30 | 2022-01-25 | Zoox, Inc. | Laser power cailibration and correction |
US10048358B2 (en) | 2016-12-30 | 2018-08-14 | Panosense Inc. | Laser power calibration and correction |
JP7211968B2 (en) | 2016-12-30 | 2023-01-24 | ズークス インコーポレイテッド | Laser power calibration and correction |
CN110168402B (en) * | 2016-12-30 | 2023-10-31 | 祖克斯有限公司 | Laser power calibration and correction |
US10718857B1 (en) | 2016-12-30 | 2020-07-21 | Panosense Inc. | Laser power calibration and correction |
US10386467B2 (en) | 2017-02-17 | 2019-08-20 | Aeye, Inc. | Ladar pulse deconfliction apparatus |
US10209349B2 (en) | 2017-02-17 | 2019-02-19 | Aeye, Inc. | Method and system for ladar pulse deconfliction to detect and track other ladar systems |
US10379205B2 (en) | 2017-02-17 | 2019-08-13 | Aeye, Inc. | Ladar pulse deconfliction method |
US11092676B2 (en) | 2017-02-17 | 2021-08-17 | Aeye, Inc. | Method and system for optical data communication via scanning ladar |
US10185028B2 (en) | 2017-02-17 | 2019-01-22 | Aeye, Inc. | Method and system for ladar pulse deconfliction using delay code selection |
US11835658B2 (en) | 2017-02-17 | 2023-12-05 | Aeye, Inc. | Method and system for ladar pulse deconfliction |
US11808891B2 (en) | 2017-03-31 | 2023-11-07 | Velodyne Lidar Usa, Inc. | Integrated LIDAR illumination power control |
US11703569B2 (en) | 2017-05-08 | 2023-07-18 | Velodyne Lidar Usa, Inc. | LIDAR data acquisition and control |
US12055661B2 (en) | 2017-06-19 | 2024-08-06 | Hesai Technology Co., Ltd. | Lidar system and method |
US12019187B2 (en) | 2017-06-19 | 2024-06-25 | Hesai Technology Co., Ltd. | Lidar system and method |
US11002857B2 (en) | 2017-09-15 | 2021-05-11 | Aeye, Inc. | Ladar system with intelligent selection of shot list frames based on field of view data |
US10495757B2 (en) | 2017-09-15 | 2019-12-03 | Aeye, Inc. | Intelligent ladar system with low latency motion planning updates |
US10663596B2 (en) | 2017-09-15 | 2020-05-26 | Aeye, Inc. | Ladar receiver with co-bore sited camera |
US10641900B2 (en) | 2017-09-15 | 2020-05-05 | Aeye, Inc. | Low latency intra-frame motion estimation based on clusters of ladar pulses |
US11821988B2 (en) | 2017-09-15 | 2023-11-21 | Aeye, Inc. | Ladar system with intelligent selection of shot patterns based on field of view data |
US10613200B2 (en) | 2017-09-19 | 2020-04-07 | Veoneer, Inc. | Scanning lidar system and method |
US11073604B2 (en) | 2017-09-19 | 2021-07-27 | Veoneer Us, Inc. | Scanning LiDAR system and method |
US11460550B2 (en) | 2017-09-19 | 2022-10-04 | Veoneer Us, Llc | Direct detection LiDAR system and method with synthetic doppler processing |
US11480659B2 (en) | 2017-09-29 | 2022-10-25 | Veoneer Us, Llc | Detection system with reflective member illuminated from multiple sides |
US10684370B2 (en) | 2017-09-29 | 2020-06-16 | Veoneer Us, Inc. | Multifunction vehicle detection system |
US11194022B2 (en) | 2017-09-29 | 2021-12-07 | Veoneer Us, Inc. | Detection system with reflection member and offset detection array |
US11609311B2 (en) | 2017-10-24 | 2023-03-21 | Sharp Kabushiki Kaisha | Pulsed light irradiation/detection device, and optical radar device |
CN109725322A (en) * | 2017-10-30 | 2019-05-07 | 光宝电子(广州)有限公司 | Distance sensing device |
US11585901B2 (en) | 2017-11-15 | 2023-02-21 | Veoneer Us, Llc | Scanning lidar system and method with spatial filtering for reduction of ambient light |
US10838043B2 (en) | 2017-11-15 | 2020-11-17 | Veoneer Us, Inc. | Scanning LiDAR system and method with spatial filtering for reduction of ambient light |
US11726192B2 (en) | 2017-12-05 | 2023-08-15 | Sharp Kabushiki Kaisha | Photoreceptor, flight time measurement device, and optical radar |
EP3742199A4 (en) * | 2018-01-15 | 2021-06-23 | Hesai Photonics Technology Co., Ltd | Laser radar and operation method therefor |
US11624824B2 (en) | 2018-01-26 | 2023-04-11 | Sick Ag | Optoelectronic sensor and method for detecting objects |
EP3518000A1 (en) * | 2018-01-26 | 2019-07-31 | Sick AG | Optoelectronic sensor and method for detecting objects |
US11561286B2 (en) | 2018-04-27 | 2023-01-24 | Sharp Kabushiki Kaisha | Optical radar apparatus for long distance measurement |
US11796648B2 (en) | 2018-09-18 | 2023-10-24 | Velodyne Lidar Usa, Inc. | Multi-channel lidar illumination driver |
US10656252B1 (en) | 2018-10-25 | 2020-05-19 | Aeye, Inc. | Adaptive control of Ladar systems using spatial index of prior Ladar return data |
US10656277B1 (en) | 2018-10-25 | 2020-05-19 | Aeye, Inc. | Adaptive control of ladar system camera using spatial index of prior ladar return data |
US11733387B2 (en) | 2018-10-25 | 2023-08-22 | Aeye, Inc. | Adaptive ladar receiver control using spatial index of prior ladar return data |
US11327177B2 (en) | 2018-10-25 | 2022-05-10 | Aeye, Inc. | Adaptive control of ladar shot energy using spatial index of prior ladar return data |
US10598788B1 (en) | 2018-10-25 | 2020-03-24 | Aeye, Inc. | Adaptive control of Ladar shot selection using spatial index of prior Ladar return data |
US10670718B1 (en) | 2018-10-25 | 2020-06-02 | Aeye, Inc. | System and method for synthetically filling ladar frames based on prior ladar return data |
US11082010B2 (en) | 2018-11-06 | 2021-08-03 | Velodyne Lidar Usa, Inc. | Systems and methods for TIA base current detection and compensation |
US11885958B2 (en) | 2019-01-07 | 2024-01-30 | Velodyne Lidar Usa, Inc. | Systems and methods for a dual axis resonant scanning mirror |
US12061263B2 (en) | 2019-01-07 | 2024-08-13 | Velodyne Lidar Usa, Inc. | Systems and methods for a configurable sensor system |
US20210395982A1 (en) * | 2019-01-23 | 2021-12-23 | Komatsu Ltd. | System and method for work machine |
US11513223B2 (en) | 2019-04-24 | 2022-11-29 | Aeye, Inc. | Ladar system and method with cross-receiver |
US10641897B1 (en) | 2019-04-24 | 2020-05-05 | Aeye, Inc. | Ladar system and method with adaptive pulse duration |
US10921450B2 (en) | 2019-04-24 | 2021-02-16 | Aeye, Inc. | Ladar system and method with frequency domain shuttering |
US10656272B1 (en) | 2019-04-24 | 2020-05-19 | Aeye, Inc. | Ladar system and method with polarized receivers |
US11474218B2 (en) | 2019-07-15 | 2022-10-18 | Veoneer Us, Llc | Scanning LiDAR system and method with unitary optical element |
US11579257B2 (en) | 2019-07-15 | 2023-02-14 | Veoneer Us, Llc | Scanning LiDAR system and method with unitary optical element |
US11933967B2 (en) | 2019-08-22 | 2024-03-19 | Red Creamery, LLC | Distally actuated scanning mirror |
US11313969B2 (en) | 2019-10-28 | 2022-04-26 | Veoneer Us, Inc. | LiDAR homodyne transceiver using pulse-position modulation |
DE102020100452B4 (en) | 2020-01-10 | 2022-10-13 | Sick Ag | Photoelectric sensor and method for detecting objects |
DE102020100452A1 (en) | 2020-01-10 | 2021-07-15 | Sick Ag | Optoelectronic sensor and method for detecting objects |
EP3848721A1 (en) | 2020-01-10 | 2021-07-14 | Sick Ag | Optoelectronic sensor and method for detecting objects |
GB2602154A (en) * | 2020-12-21 | 2022-06-22 | Nissan Motor Mfg Uk Ltd | Lidar sensor assembly and mount |
US12044800B2 (en) | 2021-01-14 | 2024-07-23 | Magna Electronics, Llc | Scanning LiDAR system and method with compensation for transmit laser pulse effects |
US11326758B1 (en) | 2021-03-12 | 2022-05-10 | Veoneer Us, Inc. | Spotlight illumination system using optical element |
US11448734B1 (en) | 2021-03-26 | 2022-09-20 | Aeye, Inc. | Hyper temporal LIDAR with dynamic laser control using laser energy and mirror motion models |
US11822016B2 (en) | 2021-03-26 | 2023-11-21 | Aeye, Inc. | Hyper temporal lidar using multiple matched filters to orient a lidar system to a frame of reference |
US11686845B2 (en) | 2021-03-26 | 2023-06-27 | Aeye, Inc. | Hyper temporal lidar with controllable detection intervals based on regions of interest |
US11675059B2 (en) | 2021-03-26 | 2023-06-13 | Aeye, Inc. | Hyper temporal lidar with elevation-prioritized shot scheduling |
US11300667B1 (en) | 2021-03-26 | 2022-04-12 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control for scan line shot scheduling |
US11635495B1 (en) | 2021-03-26 | 2023-04-25 | Aeye, Inc. | Hyper temporal lidar with controllable tilt amplitude for a variable amplitude scan mirror |
US11630188B1 (en) | 2021-03-26 | 2023-04-18 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control using safety models |
US11619740B2 (en) | 2021-03-26 | 2023-04-04 | Aeye, Inc. | Hyper temporal lidar with asynchronous shot intervals and detection intervals |
US11604264B2 (en) | 2021-03-26 | 2023-03-14 | Aeye, Inc. | Switchable multi-lens Lidar receiver |
US11500093B2 (en) | 2021-03-26 | 2022-11-15 | Aeye, Inc. | Hyper temporal lidar using multiple matched filters to determine target obliquity |
US11493610B2 (en) | 2021-03-26 | 2022-11-08 | Aeye, Inc. | Hyper temporal lidar with detection-based adaptive shot scheduling |
US11486977B2 (en) | 2021-03-26 | 2022-11-01 | Aeye, Inc. | Hyper temporal lidar with pulse burst scheduling |
US11480680B2 (en) | 2021-03-26 | 2022-10-25 | Aeye, Inc. | Hyper temporal lidar with multi-processor return detection |
US11686846B2 (en) | 2021-03-26 | 2023-06-27 | Aeye, Inc. | Bistatic lidar architecture for vehicle deployments |
US11474212B1 (en) | 2021-03-26 | 2022-10-18 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control and shot order simulation |
US11474213B1 (en) | 2021-03-26 | 2022-10-18 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control using marker shots |
US11474214B1 (en) | 2021-03-26 | 2022-10-18 | Aeye, Inc. | Hyper temporal lidar with controllable pulse bursts to resolve angle to target |
US11467263B1 (en) | 2021-03-26 | 2022-10-11 | Aeye, Inc. | Hyper temporal lidar with controllable variable laser seed energy |
US11460556B1 (en) | 2021-03-26 | 2022-10-04 | Aeye, Inc. | Hyper temporal lidar with shot scheduling for variable amplitude scan mirror |
US11460553B1 (en) | 2021-03-26 | 2022-10-04 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control using different mirror motion models for shot scheduling and shot firing |
US12050286B2 (en) | 2021-03-26 | 2024-07-30 | Aeye, Inc. | Hyper temporal lidar with dynamic shot scheduling using a laser energy model |
US11460552B1 (en) | 2021-03-26 | 2022-10-04 | Aeye, Inc. | Hyper temporal lidar with dynamic control of variable energy laser source |
US11442152B1 (en) | 2021-03-26 | 2022-09-13 | Aeye, Inc. | Hyper temporal lidar with dynamic laser control using a laser energy model |
US11732858B2 (en) | 2021-06-18 | 2023-08-22 | Veoneer Us, Llc | Headlight illumination system using optical element |
US12092278B2 (en) | 2022-10-07 | 2024-09-17 | Magna Electronics, Llc | Generating a spotlight |
Also Published As
Publication number | Publication date |
---|---|
CN101688774A (en) | 2010-03-31 |
WO2008008970A3 (en) | 2008-10-16 |
EP2041515A2 (en) | 2009-04-01 |
EP2041515A4 (en) | 2009-11-11 |
US7969558B2 (en) | 2011-06-28 |
US20100020306A1 (en) | 2010-01-28 |
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