WO2021106039A1 - 物体検知装置 - Google Patents
物体検知装置 Download PDFInfo
- Publication number
- WO2021106039A1 WO2021106039A1 PCT/JP2019/045975 JP2019045975W WO2021106039A1 WO 2021106039 A1 WO2021106039 A1 WO 2021106039A1 JP 2019045975 W JP2019045975 W JP 2019045975W WO 2021106039 A1 WO2021106039 A1 WO 2021106039A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- object detection
- vertical angle
- angle measurement
- vehicle
- detection device
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 114
- 238000005259 measurement Methods 0.000 claims abstract description 93
- 238000012545 processing Methods 0.000 claims abstract description 54
- 230000007613 environmental effect Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 21
- 230000004043 responsiveness Effects 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 54
- 238000010586 diagram Methods 0.000 description 26
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 description 2
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 description 2
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
- G01S7/412—Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored values
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9316—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles combined with communication equipment with other vehicles or with base stations
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/932—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
Definitions
- This application relates to an object detection device.
- ADAS Advanced Driver-
- ACC Adaptive Cruise Control
- AEBS Advanced Emergency Braking System
- Assistance Systems a detection device such as a camera or a radar that obtains information on an object existing around the vehicle is mounted on the vehicle, and an object existing in the moving direction of the vehicle needs to be controlled when driving. It detects as a target object (hereinafter referred to as a controlled object), observes the positional relationship and relative speed between its own vehicle and the controlled object, and controls the driving support of its own vehicle based on the observation result data. ing.
- Some of the in-vehicle radars used in ADAS have an angle measurement function in the direction perpendicular to the ground, and the detection target is based on the height information of the detected object (hereinafter referred to as the detection target).
- a technique has been proposed for determining whether the object is a controlled object such as a preceding vehicle or a pedestrian, or an uncontrolled object such as a signboard provided above the road or a thin falling object on the road (Patent Document 1). ).
- the conventional in-vehicle radar device does not calculate the vertical direction, so that the height of the target from the ground cannot be grasped, so that the signboard provided above the road or the thinness on the road is thin.
- the ACC system is erroneously operated as a technical problem, and this problem is solved. That is, in the radar device, the transmitted wave is transmitted from the transmitting antenna toward the detection target as the vertical direction, which is the direction of the detection target in the direction perpendicular to the ground, and the reflected wave reflected by the detection target is used.
- the orientation of the real image on the ground is calculated, and the orientation of the virtual image existing underground is calculated from the reflected wave reflected on the ground after being reflected by the detection object, and the angle difference between the calculated orientation of the real image and the orientation of the virtual image. Is used to calculate the height of the object to be detected from the ground.
- Patent Document 1 by processing the information obtained from the detection target object, the signboard provided above the road or the thin falling object on the road is not erroneously recognized as the control target object, and the front surface is described.
- a technique for appropriately recognizing a controlled object is disclosed.
- the detection target for measuring the vertical direction is selected based on the environmental information in which the vehicle is located, that is, the environmental information in which the object detection unit is located.
- the object detection device of the present application acquires an object detection unit that detects an object to be detected within a predetermined range and environment information in which the object detection unit is located, and outputs an environment information signal corresponding to the environment information. It is characterized by including an environmental information acquisition unit and a vertical angle measurement function control unit that controls a range in which an angle is measured in the direction perpendicular to the object detection unit based on the environment information signal.
- the object detection device can control the object detection unit and reduce the amount of calculation of signal processing.
- FIG. It is a block diagram which shows the structure of Embodiment 1.
- FIG. It is a flowchart which shows the operation of Embodiment 1. It is a flowchart which shows the operation of Embodiment 2.
- FIG. 1 is a block diagram showing an object detection device 100 according to the first embodiment.
- the object detection device 100 includes an object detection unit 10, a vertical angle measurement function control unit 20, and an environment information acquisition unit 30.
- the object detection unit 10 is composed of a radar control circuit 11, an RF module circuit 12, and a signal processing circuit 13.
- the RF module circuit 12 is, for example, a board on which a plurality of active components (IC chips, etc.) and passive components (SAW filters, capacitors, resistors, coils, etc.) are mounted.
- the environment information acquisition unit 30 acquires information A used for controlling the vertical angle measurement function by communication or a sensor.
- the information A is, for example, the trajectory, speed, traveling direction, relative speed of the detected object, and reflection intensity of the own vehicle, and this information A is called "environmental information”.
- the environment information acquisition unit 30 outputs the environment information signal B based on the acquired information A to the vertical angle measurement function control unit 20.
- the vertical angle measurement function control unit 20 outputs a signal C to the radar control circuit 11 and the signal processing circuit 13 of the object detection unit 10 based on the environment information signal B, and among the radar control circuit 11 and the signal processing circuit 13. At least one of the processing contents is controlled so that the vertical angle measurement processing is performed only on the controlled object in the state that meets the predetermined conditions.
- the control of the processing content is, for example, a control for changing the range of the distance range, the distance accuracy, the speed range, the speed accuracy, the angle range, and the angle accuracy for performing vertical angle measurement.
- the signal C for performing this control is a “vertical angle measurement function control signal”.
- the transmitted wave transmitted from the transmitting antenna (not shown) is transmitted in the vertical direction of the object in the direction perpendicular to the ground.
- the real image vertical direction which is the direction of the real image on the ground, is calculated from the reflected wave reflected by the target, the transmitted wave transmitted from the transmitting antenna is reflected by the object, and the reflected wave reflected on the ground exists underground.
- the imaginary vertical orientation which is the imaginary orientation, is calculated.
- the object detection unit 10 calculates the angle difference between the calculated real image vertical direction and the virtual image vertical direction, and calculates the height of the target from the ground using the calculated angle difference.
- the vertical direction of the object detection unit 10 may be calculated by any method.
- the vertical direction may be calculated by mechanically or electrically controlling the beam, or a known beam former method or
- the vertical direction can be calculated by super-resolution angle measurement and monopulse angle measurement.
- the radar control circuit 11 controls the RF module circuit 12 regarding the transmission and reception of radio waves.
- the control related to the transmission and reception of radio waves is, for example, control related to the frequency band of the transmitted wave, the occupied frequency band, the sampling frequency, the number of samples, the frequency modulation time, the transmission CH, the reception CH, and the frequency modulation timing.
- the content of the control can be changed based on the signal C.
- the RF module circuit 12 transmits and receives radio waves according to the RF module circuit control signal D, and measures the beat signal E.
- the signal processing circuit 13 calculates, for example, the distance to the object, the relative velocity, the azimuth angle, the elevation angle, and the reflection intensity, and outputs the result as the output signal F.
- the content of the signal processing can be changed based on the vertical angle measurement function control signal C.
- the arrows in FIG. 1 indicate the signal flow.
- FIG. 2 is a flowchart showing the operation of the first embodiment. Detection is started in step S101, in step S102, the environmental information acquisition unit 30 acquires environmental information by communication or a sensor, and the vertical angle measurement function control unit 20 receives the environmental information signal B.
- step S103 the vertical angle measurement function control unit 20 determines the control content of the vertical angle measurement function based on the environmental information, and also determines whether or not the control content has been changed from the previous cycle. If the control content has been changed, the process proceeds to step S104, and if not, the process proceeds to step S105 radar control.
- step S104 the vertical angle measurement function control unit 20 changes at least one of the radar control circuit 11 and the signal processing circuit 13 in advance so as to match the control content determined in step S103. , Outputs signal C, which is a vertical angle measurement function control signal.
- step S105 the radar control circuit 11 controls the RF module circuit 12 based on the preset processing contents.
- step S106 the RF module circuit 12 transmits / receives radio waves and measures the beat signal based on the RF module circuit control signal D by the radar control circuit 11.
- step S107 the signal processing circuit 13 performs signal processing on the beat signal E based on the preset processing content, and calculates the detected distance to the object, the speed of the object, the azimuth angle, the elevation angle, the signal strength, and the like. To do. If it is determined in step S108 that the detection has ended, the detection ends in step S109. If it is not determined that the detection is completed, the process returns to step S102, and the acquisition of the environment information is repeated.
- the vertical angle measurement function of the radar is controlled based on the environmental information.
- the angle measurement function is not changed, so that unnecessary communication or calculation can be omitted.
- Embodiment 2 The configuration of the second embodiment is the same as the configuration of the first embodiment. The difference is the operation performed by this configuration.
- FIG. 3 is a flowchart showing the operation of the second embodiment. The difference between the operation of the second embodiment and the operation of the first embodiment will be described below.
- the process flow for controlling the vertical angle measurement function and the process flow for detecting an object are parallelized with the process flow of the first embodiment.
- the flow of processing for determining whether or not to control the vertical angle measurement function is called “vertical angle measurement function control determination loop L1", and the flow of processing for detecting an object is called “object detection processing loop L2”.
- step S201 detection is started in step S201
- step S202 the environmental information acquisition unit 30 acquires environmental information by communication or a sensor
- the vertical angle measurement function control unit 20 acquires environmental information. Receive signal B.
- step S203 the vertical angle measurement function control unit 20 determines the control content of the vertical angle measurement function based on the environment information signal B, and also determines whether or not the control content has been changed from the previous cycle. At this time, if the control content is changed, the process proceeds to step S204, "interruption to the object detection processing loop L2" is performed, and if the control content is not changed, the process proceeds to step S205.
- the object detection processing loop L2 starts detection in step S301, determines whether or not an interrupt has occurred in step S302, proceeds to step S303 if an interrupt has occurred, and otherwise proceeds to step S304.
- Move on to radar control In step S303, the vertical angle measurement function control unit 20 changes at least one of the radar control circuit 11 and the signal processing circuit 13 in advance so as to change the preset processing content according to the control content determined in step S303.
- Outputs signal C which is a vertical angle measurement function control signal.
- step S304 the radar control circuit 11 controls the RF module circuit 12 based on the preset processing contents.
- step S305 the RF module circuit 12 transmits / receives radio waves and measures the beat signal based on the RF module circuit control signal D by the radar control circuit 11.
- step S306 the signal processing circuit 13 performs signal processing on the beat signal E based on the processing content set in advance, and calculates the distance of the detected object. If it is determined in step S307 that the detection has ended, the detection ends in step S308. If it is not determined that the detection is completed, the process returns to step S302, and the acquisition of environmental information is repeated.
- step S303 When performing "interruption to the object detection processing loop L2" in step S204, the vertical angle measurement function control unit 20 generates step S303 in the object detection processing loop. On the contrary, when this interrupt is not generated, step S303 does not occur. If it is determined in step S205 that the detection has ended, the detection ends in step S206. If it is not determined that the detection is completed, the process returns to step S202, and the process proceeds in the same manner thereafter.
- step S302 it is determined whether or not an interrupt from the vertical angle measurement function control determination loop has occurred. If an interrupt has occurred, the process proceeds to step S303, and if no interrupt has occurred, the process proceeds to step S304.
- step S303 at least one of the radar control circuit 11 and the signal processing circuit 13 is set so that the vertical angle measurement function control unit 20 conforms to the control content preset in step S203 of the vertical angle measurement function control determination loop L1.
- the vertical angle measurement function control signal C is output so as to control the processing content of.
- step S303 it is possible to make the contents of the vertical angle measurement function change with respect to the radar control circuit 11 and the signal processing circuit 13 consistent.
- FIG. 4 is an image diagram showing the coverage area of the radar.
- the environmental information acquisition unit 30 acquires the speed of its own vehicle X, and among the objects detected by the vertical angle measurement function control unit 20, it is vertical only to an object whose absolute velocity V target is equal to or less than the threshold value V th.
- the object detection unit 10 is controlled so as to measure the angle in the direction. For example, when the shaded portion S1 in FIG. 4 is the detection range of the radar , the object detection unit 10 is controlled so that only the objects whose absolute velocity V target is equal to or less than the threshold value V th are subject to vertical angle measurement, and the radio waves are transmitted. Controls transmission / reception and signal processing.
- the height difference between a stationary object that is an uncontrolled object such as a signboard installed above the road or a thin falling object on the road and a stationary controlled object such as a vehicle stopped due to a traffic jam.
- efficient radar control and signal processing can be achieved by not performing vertical angle measurement on moving controlled objects such as vehicles traveling in front. It will be possible.
- FIG. 5 is an image diagram showing the coverage area of the radar.
- the vertical angle measuring function control unit 20 acquires the speed V own and the specified time of his vehicle X, the vertical angle measuring function control unit 20, only the vertical direction with respect to its own vehicle is movable distance range within a specified time
- the object detection unit 10 is controlled so as to measure the angle of.
- the vehicle speed is Bowen [m / S] and the specified time is t [S]
- the distance range for performing vertical angle measurement is defined as Bown ⁇ t [, as shown in the shaded area S2 in FIG. m] or less.
- the environmental information acquisition unit 30 acquires the current speed direction of its own vehicle X, one or more information of the target speed, deceleration, and jerk, and the set value of the minimum inter-vehicle distance, and has a vertical angle measurement function.
- the control unit 20 controls the object detection unit 10 so as to measure the angle in the vertical direction with respect to a distance range within a distance obtained by adding the minimum inter-vehicle distance to the distance traveled by the vehicle to reach the target speed.
- the set value of the minimum inter-vehicle distance may be defined by the inter-vehicle time between the own vehicle and the preceding vehicle, or may be dynamically changed.
- the set value of the minimum inter-vehicle distance may be omitted as it is always 0 [m].
- the image diagram showing the radar coverage area of the 55th embodiment is the same as that of FIG. 5 shown in the 4th embodiment.
- the present embodiment may be applied only when the own vehicle is decelerating, and the embodiment 4 and the present embodiment may be combined and implemented by applying the fourth embodiment other than when the own vehicle is decelerating. This makes it possible to determine the target for vertical angle measurement according to the acceleration / deceleration situation of the own vehicle.
- FIG. 6 is an image diagram showing the coverage area of the radar.
- the environmental information acquisition unit 30 acquires the horizontal angle direction in which the vehicle X is going, and the vertical angle measurement function control unit 20 is perpendicular only to the horizontal angle range ⁇ [deg] in which the vehicle X is going to move.
- the object detection unit 10 is controlled so as to measure the angle in the direction. For example, when the vehicle X moves forward to the right from now on, the horizontal angle range ⁇ [deg] for performing vertical angle measurement is limited to the front right only, as shown in the shaded area S3 in FIG. As a result, it is possible to eliminate the vertical angle measurement with respect to an object other than the traveling direction of the vehicle X, so that efficient radar control and signal processing become possible.
- FIG. 7 is an image diagram showing the coverage area of the radar.
- the environmental information acquisition unit 30 acquires the track information on which the vehicle X is going, and the vertical angle measurement function control unit 20 measures the angle in the vertical direction only on the track on which the vehicle X is going to move.
- the object detection unit 10 is controlled in this way. For example, when the vehicle X is to turn right from now on, as shown in the shaded area S4 in FIG. 7, the distance range and the horizontal angle range for performing vertical angle measurement are limited to the periphery of the right turning track. At this time, the angle may be measured in the vertical direction with respect to the range in which the track of the own vehicle X has a margin for the acquisition error of the track. As a result, it is possible to reduce the distance range and the horizontal angle range for performing vertical angle measurement on the traveling track of the vehicle X or outside the range including the margin in the track, so that efficient radar control and signal processing can be performed. Is possible.
- FIG. 8 is an image diagram showing the coverage area of the radar.
- the environmental information acquisition unit 30 acquires the SNR (Signal-to-Noise Ratio) to be detected and the threshold value for the SNR. Since the angle measurement accuracy is low for an object with a low SNR, the vertical angle measurement function control unit 20 detects the object so that the vertical angle measurement is performed only for the detection target whose SNR exceeds the threshold value.
- the unit 10 is controlled. For example, when the threshold value of SNR is 5db and the SNR of the shaded area S5-1 in FIG. 8 is 10db, it is assumed that the SNR exceeds the threshold value and the angle is measured in the vertical direction. I do.
- the SNR of the region of the lattice portion S5-2 is 0db
- the vertical angle measurement function control unit 20 measures the angle in the vertical direction only for the detection target whose reflected signal intensity exceeds the threshold value, based on the reflected signal intensity of the detection target instead of the SNR.
- the unit 10 may be controlled. It should be noted that this embodiment may be carried out at the same time as limiting the range in which the angle is measured in the vertical direction according to other embodiments.
- FIG. 9 is an image diagram showing the coverage area of the radar.
- the environmental information acquisition unit 30 acquires the speed of its own vehicle X, the threshold value for determining a stationary object, the specified time, and the horizontal direction in which the own vehicle X is going, and is a vertical angle measurement function control unit. 20 determines the stationary object to be detected based on its own vehicle speed, the threshold value for determining a stationary object, and the relative speed of the detection target, and the distance at which its own vehicle X is expected to move within a specified time.
- the object detection unit 10 is controlled so as to measure the angle in the vertical direction only for a stationary object within the angle range. For example, as shown in the shaded area S6 in FIG.
- the distance range for performing vertical angle measurement is defined as Bown.
- the horizontal angle range ⁇ [deg] is limited to the front right only, and the vertical angle measurement is performed only for a stationary object.
- FIG. 10 is an image diagram showing the coverage area of the radar.
- the environmental information acquisition unit 30 acquires the speed of its own vehicle X, the threshold value for determining a stationary object, the designated time, and the trajectory on which its own vehicle X is going, and the vertical angle measurement function control unit 20.
- the object detection unit 10 is controlled so that the object detection unit 10 measures the angle in the vertical direction only for a stationary object within a distance and angle range where the vehicle X is expected to move within a specified time.
- the distance range for performing vertical angle measurement is defined as Bown.
- the distance range and the horizontal angle range are limited to t [m] or less, and the vertical angle measurement is performed only for a stationary object.
- FIG. 11 is a block diagram showing an object detection device 100 according to the eleventh embodiment.
- FIG. 12 is a configuration diagram showing a state in which the object detection device 100 of the eleventh embodiment is mounted on the vehicle.
- the configuration of the eleventh embodiment is the same as that of the first embodiment and the second embodiment except for the object detection unit 10.
- the object detection units 10 are provided in three places in front of the vehicle X and two places in the rear of the vehicle X.
- the vertical angle measuring function control unit 20 is mounted inside the own vehicle X. The other parts are mounted inside the vehicle X as well as the vertical angle measuring function control unit 20. As a result, it is possible to control the vertical angle measuring function with respect to the covering area of the plurality of object detection units 10 combined, and it is possible to cooperate between the plurality of object detection units.
- FIG. 13 is a block diagram showing an object detection unit 10, a vertical angle measurement function control unit 20, and an environmental information acquisition unit 30 of the object detection device 100 according to the twelfth embodiment.
- FIG. 14 is a configuration diagram showing a state in which the object detection device 100 of the twelfth embodiment is mounted on the vehicle.
- the configuration of the embodiment 12 is the same as that of the first embodiment, the second embodiment, and the eleventh embodiment except for the object detection unit 10, and the object detection unit 10 has a plurality of RF module circuits 12, one. It differs in that it is composed of one signal processing circuit 13 and one or more radar control circuits 11. As shown in FIG. 14, RF module circuits 12 are provided in three places in front of the vehicle X and two places in the rear of the vehicle X. Further, the vertical angle measurement function control unit 20 is mounted inside the vehicle X itself, and the radar control circuit 11 may be mounted inside the vehicle X or mounted in the same place as the RF module circuit 12. May be done. The other parts are mounted inside the vehicle X as well as the vertical angle measuring function control unit 20.
- the case where the radar is used has been described, but at least one of the distance, the speed, and the angle such as the radar or LiDAR (Light Detection and Ranging).
- a sensor that performs the above measurements has a vertical angle measurement function, and can change at least one of the distance range, distance accuracy, speed range, speed accuracy, angle range, and angle accuracy for performing vertical angle measurement. If so, it is applicable.
- radars often have a configuration in which the vertical direction is calculated by a known beamformer method, super-resolution angle measurement, or monopulse angle measurement. Therefore, the processing load can be reduced by limiting the range in which vertical angle measurement is performed. The effect is great.
- the object detection unit 10, the vertical angle measurement function control unit 20, and the environment information acquisition unit 30 are composed of the processor 200 and the storage device 201 as shown in FIG. 15 as an example of the hardware configuration.
- the storage device includes a volatile storage device such as a random access memory and a non-volatile auxiliary storage device such as a flash memory. Further, an auxiliary storage device of a hard disk may be provided instead of the flash memory.
- the processor 200 executes the program input from the storage device 201. In this case, a program is input from the auxiliary storage device to the processor 200 via the volatile storage device.
- the processor 200 may output data such as a calculation result to the volatile storage device of the storage device 201, or may store the data in the auxiliary storage device via the volatile storage device.
- the RF module circuit, the radar control circuit, and the signal processing circuit are described as the components of the object detection unit, it is not necessary that these are housed in one housing.
- a circuit that processes a part or all of the signal processing circuit may be mounted in another housing (signal processing ECU (Electronic Control Unit)) mounted in a place different from the RF module circuit.
- signal processing ECU Electronic Control Unit
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
例えば、AEBSでは、自らの車両の周辺に存在する物体の情報を得るカメラあるいはレーダといった検知装置が、車両に搭載され、自らの車両の移動方向に存在する物体を、運転に際して制御を必要とする対象の物体(以下、制御対象物という)として検出し、自らの車両と制御対象物との位置関係および相対速度を観測し、観測結果のデータに基づいて自らの車両の運転支援の制御を行っている。
しかしながら、多くの情報を取り入れて情報処理を行うと、情報量が多いため、演算量が多くなり、処理時間が長くなり、応答性が悪くなるという問題が生じることになる。
以下、実施の形態1に係る物体検知装置を図1に基づいて説明する。
図1は、実施の形態1に係る物体検知装置100を示すブロック図である。図1に示すように、物体検知装置100は、物体検知部10、垂直測角機能制御部20、環境情報取得部30を備えている。
物体検知部10は、レーダ制御回路11、RFモジュール回路12および信号処理回路13によって構成されている。RFモジュール回路12とは、例えば、複数の能動部品(ICチップ等)と受動部品(SAWフィルタ、コンデンサ、抵抗、コイル等)を基板に搭載したものである。
信号処理回路13は、ビート信号Eの周波数解析を行うことで、例えば、物体までの距離、相対速度、方位角、仰角、反射強度を算出してその結果を出力信号Fとして出力する。この信号処理を行う際、垂直測角機能制御信号Cに基づいて、信号処理の内容を変更することができる。なお、図1中の矢印は、信号の流れを示す。
ステップS101において検知を開始し、ステップS102において、環境情報取得部30は、通信またはセンサによって環境情報を取得し、垂直測角機能制御部20は、環境情報信号Bを受け取る。
ステップS106において、RFモジュール回路12は、レーダ制御回路11によるRFモジュール回路制御信号Dに基づいて、電波の送受信およびビート信号の測定を行う。
ステップS107において、信号処理回路13は、予め設定された処理内容に基づいて、ビート信号Eに対する信号処理を行い、検知した物体までの距離、物体の速度、方位角、仰角および信号強度などを算出する。
ステップS108において、検知終了と判定された場合は、ステップS109において検知が終了する。検知終了と判定されなかった場合には、処理は、ステップS102へと戻り、環境情報の取得が繰り返される。
このフローチャートに示した動作によって、環境情報に基づいてレーダの垂直測角機能の制御が行われる。その結果、環境情報に基づいて、垂直測角機能の変更が不要の場合には測角機能の変更を行わないため、無駄な通信あるいは計算を省くことができる。
本実施の形態2の構成は、本実施の形態1の構成と同じである。異なるところは、この構成によって行われる動作である。
図3は、本実施の形態2の動作を示すフローチャートである。本実施の形態2の動作と実施の形態1の動作との差異を次に説明する。
垂直測角機能の制御を行うか否かを判定する処理の流れを「垂直測角機能制御判定ループL1」、物体の検知を行う処理の流れを「物体検知処理ループL2」と呼ぶ。
ステップS305において、RFモジュール回路12は、レーダ制御回路11によるRFモジュール回路制御信号Dに基づいて、電波の送受信およびビート信号の測定を行う。
ステップS306において、信号処理回路13は、予め設定された処理内容に基づいて、ビート信号Eに対する信号処理を行い、検知した物体の距離を算出する。
ステップS307において、検知終了と判定された場合は、ステップS308において検知が終了する。検知終了と判定されなかった場合には、処理は、ステップS302へと戻り、環境情報の取得が繰り返される。
ステップS205において、検知終了と判定された場合は、ステップS206にて検知が終了する。検知終了と判定されなかった場合、処理は、ステップS202へと戻り、以後同様にして処理を進めていく。
図4は、レーダの覆域を示すイメージ図である。環境情報取得部30において、自らの車両Xの速度を取得し、垂直測角機能制御部20によって、検知した物体のうち絶対速度Vtargetがしきい値Vth以下である物体に対してのみ垂直方向の測角を行うように物体検知部10を制御する。例えば、図4の斜線部分S1がレーダの検知範囲であるとき、絶対速度Vtargetがしきい値Vth以下の物体のみを垂直測角対象とするように物体検知部10を制御し、電波の送受信および信号処理に対する制御を行う。
図5は、レーダの覆域を示すイメージ図である。環境情報取得部30において、自らの車両Xの速度Vownおよび指定時間を取得し、垂直測角機能制御部20によって、自らの車両が指定時間以内に移動可能な距離範囲に対してのみ垂直方向の測角を行うように物体検知部10を制御する。例えば、自らの車両速度がVown[m/S]であり指定時間をt[S]である場合、図5の斜線部分S2のように、垂直測角を行う距離範囲をVown・t[m]以下にする。
これにより、自らの車両が指定時間以内には移動不可能な距離の物体に対する垂直測角を行うことを省略できるため、効率的なレーダの制御および信号処理が可能となる。
環境情報取得部30において、自らの車両Xの現在の速度Vownと、目標速度、減速度およびジャークのうち一つ以上の情報と、最小車間距離の設定値とを取得し、垂直測角機能制御部20によって、自らの車両が目標速度となるまでに移動する距離に最小車間距離を加えた距離以内の距離範囲に対して垂直方向の測角を行うように物体検知部10を制御する。最小車間距離の設定値は、自らの車両と先行車との車間時間によって規定されて良いし、動的に変更しても良い。また、最小車間距離の設定値は常に0[m]であるとして、省略しても良い。この実施の形態55の、レーダの覆域を示すイメージ図は、実施の形態4に示した図5と同じになる。
これにより、自らの車両の進行方向上に存在する静止物が制御対象であった場合でも、制御対象との衝突を避けることが可能な距離から静止物が制御対象か否かの判断を行うことが可能となる。
なお、自車の減速時にのみ本実施の形態を適用し、自車の減速時以外に実施の形態4を適用することで実施の形態4と本実施の形態を組み合わせて実施しても良い。これにより、自車の加減速の状況に応じた垂直測角を行う対象の判断が可能となる。
図6は、レーダの覆域を示すイメージ図である。環境情報取得部30において、自らの車両Xがこれから進む水平角度方向を取得し、垂直測角機能制御部20によって、自らの車両Xがこれから移動する水平角度範囲θ[deg]に対してのみ垂直方向の測角を行うように物体検知部10を制御する。例えば、自らの車両Xがこれから右前方へと進む場合には、図6の斜線部分S3のように、垂直測角を行う水平角度範囲θ[deg]を右前方のみに限定する。
これにより、自らの車両Xの進行方向以外の物体に対する垂直測角をなくすことができるため、効率的なレーダの制御および信号処理が可能となる。
図7は、レーダの覆域を示すイメージ図である。環境情報取得部30において、自らの車両Xがこれから進む軌道情報を取得し、垂直測角機能制御部20によって、自らの車両Xがこれから移動する軌道上に対してのみ垂直方向の測角を行うように物体検知部10を制御する。例えば、自らの車両Xがこれから右旋回する場合には、図7の斜線部分S4のように、垂直測角を行う距離範囲および水平角度範囲を右旋回の軌道の周辺のみに限定する。このとき、自らの車両Xの軌道に対して軌道の取得誤差に対するマージンを持たせた範囲に対して垂直方向の測角を行っても良い。
これにより、自らの車両Xの進行軌道上またはその軌道にマージンを含めた範囲以外での垂直測角を行う距離範囲および水平角度範囲を減らすことができるため、効率的なレーダの制御および信号処理が可能となる。
図8は、レーダの覆域を示すイメージ図である。環境情報取得部30において、検知対象のSNR(Signal-to-Noise Ratio)と、SNRに対するしきい値を取得する。SNRが低い物体に対しては測角精度が低くなるため、垂直測角機能制御部20によって、SNRがしきい値を超える検知対象に対してのみ垂直方向の測角を行うように、物体検知部10を制御する。例えば、SNRのしきい値を5dbとしたとき、図8の斜線部分S5-1の領域のSNRが10dbである場合には、SNRがしきい値を超える物体であるとして、垂直方向の測角を行う。一方、格子部分S5-2の領域のSNRが0dbである場合には、SNRがしきい値を下回る物体であるとして、垂直測角を行わない。
これにより、SNRの低い低位置物体あるいは路面に対しての垂直測角を省くことができるため、効率的なレーダの制御および信号処理が可能となる。このとき、SNRではなく検知対象の反射信号強度に基づいて、垂直測角機能制御部20による反射信号強度がしきい値を超える検知対象に対してのみ垂直方向の測角を行うように物体検知部10を制御してもよい。
なお、本実施の形態は、他の実施の形態によって垂直方向の測角を行う範囲を制限するのと同時に実施しても良い。
図9は、レーダの覆域を示すイメージ図である。環境情報取得部30において、自らの車両Xの速度と、静止物判定のためのしきい値と、指定時間と、自らの車両Xがこれから進む水平方向とを取得し、垂直測角機能制御部20によって、自らの車両速度、静止物判定のためのしきい値および検知対象の相対速度に基づいて検知対象の静止物判定を行い、自らの車両Xが指定時間以内に移動すると予想される距離、角度範囲内の静止物に対してのみ垂直方向の測角を行うように物体検知部10を制御する。例えば、図9の斜線部S6のように、自らの車両Xの速度がVown[m/S]であり指定時間をt[S]としたときに垂直測角を行う距離範囲をVown・t[m]以下にするとともに、水平角度範囲θ[deg]を右前方のみに限定し、静止物に対してのみ垂直測角を行う。
図10は、レーダの覆域を示すイメージ図である。環境情報取得部30において、自らの車両Xの速度と、静止物判定のためのしきい値と、指定時間と、自らの車両Xがこれから進む軌道とを取得し、垂直測角機能制御部20によって、自らの車両Xが指定時間以内に移動すると予想される距離、角度範囲内の静止物に対してのみ垂直方向の測角を行うように物体検知部10を制御する。例えば、図10の斜線部S7のように、自らの車両Xの速度がVown[m/S]であり指定時間をt[S]としたときに垂直測角を行う距離範囲をVown・t[m]以下にするとともに、距離範囲および水平角度範囲を右旋回の軌道の周辺のみに限定し、静止物に対してのみ垂直測角を行う。
図11は、実施の形態11に係る物体検知装置100を示すブロック図である。また、図12は、実施の形態11の物体検知装置100を車両に搭載している状態を示す構成図である。
実施の形態11の構成は、物体検知部10以外は、実施の形態1および実施の形態2の構成と同じである。この実施の形態11では、物体検知部10を自らの車両Xの前方に3か所、後方に2か所備えている。また、垂直測角機能制御部20は、自らの車両Xの内部に搭載されている。なお、その他の部分は、垂直測角機能制御部20と同様に自らの車両Xの内部に搭載されている。
これにより、複数の物体検知部10の覆域を合わせた覆域に対しての垂直測角機能の制御が可能となるとともに、複数の物体検知部間の連携が可能となる。
図13は、実施の形態12に係る物体検知装置100の物体検知部10、垂直測角機能制御部20および環境情報取得部30を示すブロック図である。
また、図14は、実施の形態12の物体検知装置100を車両に搭載している状態を示す構成図である。
なお、その他の部分は、垂直測角機能制御部20と同様に自らの車両Xの内部に搭載されている。
なお、特にレーダにおいては、公知のビームフォーマ法あるいは超分解能測角、モノパルス測角によって垂直方位を算出する構成をとることが多いため、垂直測角を行う範囲を制限することによる処理負荷低減の効果が大きい。
物体検知部の構成要素として、RFモジュール回路、レーダ制御回路、信号処理回路を記載しているが、これらが一つの筐体内に収まっている必要はない。例えば、信号処理回路の一部または全部の処理を行う回路を、RFモジュール回路と異なる場所に搭載された別の筐体(信号処理ECU(Electronic Control Unit))に搭載しても良い。
従って、例示されていない無数の変形例が、本願明細書に開示される技術の範囲内において想定される。例えば、少なくとも1つの構成要素を変形する場合、追加する場合または省略する場合、さらには、少なくとも1つの構成要素を抽出し、他の実施の形態の構成要素と組み合わせる場合が含まれるものとする。
Claims (13)
- 予め定められた範囲内の検知対象物を検出する物体検知部、前記物体検知部の置かれている環境情報を取得し、前記環境情報に応じた環境情報信号を出力する環境情報取得部、および前記環境情報信号に基づいて前記物体検知部に対して垂直方向の測角を行う範囲を制御する垂直測角機能制御部を備えたことを特徴とする物体検知装置。
- 前記物体検知部は、レーダ制御回路と、RFモジュール回路と、信号処理回路とを有することを特徴とする請求項1に記載の物体検知装置。
- 前記物体検知部は、前記RFモジュール回路を複数備えていることを特徴とする請求項2に記載の物体検知装置。
- 前記物体検知部が複数設けられ、前記垂直測角機能制御部が複数の前記物体検知部を制御することを特徴とする請求項1から3のいずれか1項に記載の物体検知装置。
- 前記垂直測角機能制御部は、前記物体検知部の垂直方向の測角に関する機能を制御することによって、垂直測角を行う距離範囲、距離精度、速度範囲、速度精度、角度範囲、角度精度のうち少なくとも一つ以上を変更させることを特徴とする請求項1から4のいずれか1項に記載の物体検知装置。
- 前記環境情報取得部は、前記垂直測角機能制御部が前記物体検知部に対する制御を行うための情報として車両の軌道、速度、進行方向、検知物体の相対速度、SNR、反射信号強度のうち一つ以上の情報を取得することを特徴とする請求項1から5のいずれか1項に記載の物体検知装置。
- 前記垂直測角機能制御部は、前記検知対象物が静止物か否かの判断を行い、静止物に対してのみ垂直測角を行うように制御することを特徴とする請求項1から6のいずれか1項に記載の物体検知装置。
- 車両に搭載され、前記垂直測角機能制御部は、自らの車両の速度に基づいて、垂直測角を行う距離範囲を制御することを特徴とする請求項1から7のいずれか1項に記載の物体検知装置。
- 車両に搭載され、前記垂直測角機能制御部は、自らの車両が目標速度となるまでに移動する距離に基づいて、垂直測角を行う距離範囲を制御することを特徴とする請求項1から8のいずれか1項に記載の物体検知装置。
- 車両に搭載され、前記垂直測角機能制御部は、自らの車両の進行方向に基づいて、垂直測角を行う水平角度範囲を制御することを特徴とする請求項1から9のいずれか1項に記載の物体検知装置。
- 車両に搭載され、前記垂直測角機能制御部は、自らの車両の軌道情報に基づいて、垂直測角を行う距離範囲および水平角度範囲のうち一つ以上を制御することを特徴とする請求項1から10のいずれか1項に記載の物体検知装置。
- 前記垂直測角機能制御部は、前記検知対象物からの反射信号のSNRに基づいて、SNRがしきい値よりも高い検知対象に対してのみ垂直測角を行うように制御することを特徴とする請求項1から11のいずれか1項に記載の物体検知装置。
- 前記垂直測角機能制御部は、前記検知対象物からの反射信号の強度に基づいて、反射信号の強度がしきい値よりも高い検知対象に対してのみ垂直測角を行うように制御することを特徴とする請求項1から12のいずれか1項に記載の物体検知装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112019007912.3T DE112019007912T5 (de) | 2019-11-25 | 2019-11-25 | Objekterkennungsvorrichtung |
PCT/JP2019/045975 WO2021106039A1 (ja) | 2019-11-25 | 2019-11-25 | 物体検知装置 |
CN201980101748.1A CN114651189A (zh) | 2019-11-25 | 2019-11-25 | 物体检测装置 |
JP2021560773A JPWO2021106039A1 (ja) | 2019-11-25 | 2019-11-25 | |
US17/766,923 US20240085521A1 (en) | 2019-11-25 | 2019-11-25 | Object detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2019/045975 WO2021106039A1 (ja) | 2019-11-25 | 2019-11-25 | 物体検知装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021106039A1 true WO2021106039A1 (ja) | 2021-06-03 |
Family
ID=76130078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2019/045975 WO2021106039A1 (ja) | 2019-11-25 | 2019-11-25 | 物体検知装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240085521A1 (ja) |
JP (1) | JPWO2021106039A1 (ja) |
CN (1) | CN114651189A (ja) |
DE (1) | DE112019007912T5 (ja) |
WO (1) | WO2021106039A1 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009036539A (ja) * | 2007-07-31 | 2009-02-19 | Mitsubishi Electric Corp | レーダ信号処理装置およびレーダ信号処理方法 |
JP2012194039A (ja) * | 2011-03-16 | 2012-10-11 | Mitsubishi Electric Corp | 車載用レーダ装置 |
JP2014052187A (ja) * | 2012-09-04 | 2014-03-20 | Fujitsu Ten Ltd | レーダ装置および物標高算出方法 |
JP2018067237A (ja) * | 2016-10-21 | 2018-04-26 | 株式会社Soken | センサ制御装置 |
WO2018101082A1 (ja) * | 2016-12-01 | 2018-06-07 | 日立オートモティブシステムズ株式会社 | レーダ装置 |
JP2019066284A (ja) * | 2017-09-29 | 2019-04-25 | 株式会社デンソーテン | レーダ装置およびレーダ装置の制御方法 |
JP2019120514A (ja) * | 2017-12-28 | 2019-07-22 | 古河電気工業株式会社 | レーダ装置およびレーダ装置の対象物検出方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0559370U (ja) * | 1992-01-16 | 1993-08-06 | 三菱電機株式会社 | 飛行シミュレーション・データ作成装置 |
JP2009058316A (ja) * | 2007-08-31 | 2009-03-19 | Fujitsu Ten Ltd | レーダ装置、物体検出方法、及び車両 |
JP5558440B2 (ja) * | 2011-09-08 | 2014-07-23 | 三菱電機株式会社 | 物体検出装置 |
JP2015020648A (ja) * | 2013-07-22 | 2015-02-02 | 日産自動車株式会社 | 車載機器制御システム及び車載機器の制御方法 |
JP2018059813A (ja) * | 2016-10-05 | 2018-04-12 | 株式会社デンソーテン | レーダ装置および物標検出方法 |
JP6937631B2 (ja) * | 2017-07-25 | 2021-09-22 | 日立Astemo株式会社 | レーダ装置 |
-
2019
- 2019-11-25 DE DE112019007912.3T patent/DE112019007912T5/de not_active Withdrawn
- 2019-11-25 CN CN201980101748.1A patent/CN114651189A/zh active Pending
- 2019-11-25 JP JP2021560773A patent/JPWO2021106039A1/ja active Pending
- 2019-11-25 US US17/766,923 patent/US20240085521A1/en active Pending
- 2019-11-25 WO PCT/JP2019/045975 patent/WO2021106039A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009036539A (ja) * | 2007-07-31 | 2009-02-19 | Mitsubishi Electric Corp | レーダ信号処理装置およびレーダ信号処理方法 |
JP2012194039A (ja) * | 2011-03-16 | 2012-10-11 | Mitsubishi Electric Corp | 車載用レーダ装置 |
JP2014052187A (ja) * | 2012-09-04 | 2014-03-20 | Fujitsu Ten Ltd | レーダ装置および物標高算出方法 |
JP2018067237A (ja) * | 2016-10-21 | 2018-04-26 | 株式会社Soken | センサ制御装置 |
WO2018101082A1 (ja) * | 2016-12-01 | 2018-06-07 | 日立オートモティブシステムズ株式会社 | レーダ装置 |
JP2019066284A (ja) * | 2017-09-29 | 2019-04-25 | 株式会社デンソーテン | レーダ装置およびレーダ装置の制御方法 |
JP2019120514A (ja) * | 2017-12-28 | 2019-07-22 | 古河電気工業株式会社 | レーダ装置およびレーダ装置の対象物検出方法 |
Also Published As
Publication number | Publication date |
---|---|
CN114651189A (zh) | 2022-06-21 |
DE112019007912T5 (de) | 2022-09-22 |
US20240085521A1 (en) | 2024-03-14 |
JPWO2021106039A1 (ja) | 2021-06-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20180128916A1 (en) | Object detection in multiple radars | |
US10338216B2 (en) | Object detection in multiple radars | |
US10338208B2 (en) | Object detection in multiple radars | |
JP4593468B2 (ja) | レーダ装置 | |
US10345439B2 (en) | Object detection in multiple radars | |
EP3865904A1 (en) | Electronic device, electronic device control method, and electronic device control program | |
US20190086512A1 (en) | Method and apparatus for vehicular radar calibration | |
JP5122536B2 (ja) | レーダ装置 | |
JP2001242242A (ja) | 検知性能向上機能を備えたミリ波レーダ装置 | |
JP2010197133A (ja) | 物体検知装置 | |
US20190086509A1 (en) | Synchronization of multiple radars start up time for interference mitigation | |
US20180120419A1 (en) | Vehicle radar control | |
CN109799505B (zh) | 用于多雷达系统中的连续追踪的方法和装置 | |
CN112654888A (zh) | 电子设备、电子设备的控制方法、以及电子设备的控制程序 | |
US20180128912A1 (en) | Object detection in multiple radars | |
JP2008152390A (ja) | 車両用周辺監視装置 | |
EP3865909B1 (en) | Electronic device, method for controlling electronic device, and program for controlling electronic device | |
JPWO2005066656A1 (ja) | 車載レーダ装置およびその信号処理方法 | |
CN116106894A (zh) | 基于5d毫米波雷达的目标跟踪方法、设备及存储介质 | |
Kawakubo et al. | Electronically-scanning millimeter-wave RADAR for forward objects detection | |
WO2021106039A1 (ja) | 物体検知装置 | |
Dickmann et al. | Automotive radar—“quo vadis?” | |
US20210247489A1 (en) | Automotive radar with common-differential mode antenna | |
EP3865907A1 (en) | Electronic device, method for controlling electronic device, and program for controlling electronic device | |
CN113942506A (zh) | 跟车行驶自动巡航方法及系统 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19953925 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 17766923 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2021560773 Country of ref document: JP Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 19953925 Country of ref document: EP Kind code of ref document: A1 |