WO2021221360A1 - Multi-mode radar module - Google Patents
Multi-mode radar module Download PDFInfo
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- WO2021221360A1 WO2021221360A1 PCT/KR2021/004761 KR2021004761W WO2021221360A1 WO 2021221360 A1 WO2021221360 A1 WO 2021221360A1 KR 2021004761 W KR2021004761 W KR 2021004761W WO 2021221360 A1 WO2021221360 A1 WO 2021221360A1
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- 230000005540 biological transmission Effects 0.000 claims abstract description 152
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000013459 approach Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011895 specific detection Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W60/00—Drive control systems specially adapted for autonomous road vehicles
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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
- 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
Definitions
- the present invention relates to a multi-mode radar module. More particularly, it relates to a multi-mode radar module operable in a plurality of modes that perform different functions according to a driving state of an autonomous vehicle.
- Autonomous driving vehicle refers to a vehicle that can drive itself without direct manipulation of the driver, and research and development are being actively conducted to realize Level 5 autonomous driving capable of fully autonomous driving.
- autonomous driving is made possible because the contribution of various sensors mounted on the vehicle plays a major role, and autonomous driving becomes possible by controlling various parts by the ECU of the vehicle based on the sensing data of the sensors. am.
- a typical example of the sensors that enable autonomous driving is a radar.
- the radar emits a strong electromagnetic wave, and the emitted electromagnetic wave collides with a specific object and receives the reflected reflected echo wave to position the object. , movement speed, etc.
- the radar for autonomous vehicles is a Long Range Radar (LRR) that detects a long distance, Middle Range Radar (MRR) that detects a medium range, and a Short Range Radar (SRR) that detects a short distance depending on the driving condition of the vehicle. ) and Wide Fov Radar (WFR) that detects a large area around the vehicle.
- LRR Long Range Radar
- MRR Middle Range Radar
- SRR Short Range Radar
- WFR Wide Fov Radar
- the present invention is a new and advanced technology capable of minimizing the number of mounting and preventing an increase in the price of an autonomous vehicle by performing different functions depending on the driving state of the autonomous vehicle through one radar module. It is about the radar module.
- the technical problem to be solved by the present invention is to provide a multi-mode radar module capable of minimizing the number of modules mounted by performing different functions according to the driving state of an autonomous vehicle through one radar module.
- Another technical problem to be solved by the present invention is to provide a multi-mode radar module capable of preventing an increase in the price of an autonomous vehicle by performing different functions according to the driving state of the autonomous vehicle through one radar module. .
- a multi-mode radar module for achieving the above technical problem is a reception channel unit including M (M is a positive integer) number of reception channel antennas, and N (N is a positive integer) transmission channels
- a transmission channel unit including an antenna, a control unit that individually controls the phase or output of channel signals transmitted by the N transmission channel antennas according to a selection of a detection mode, and the reception channel unit, the transmission channel unit and the control unit and a power supply unit for supplying power, wherein the detection mode is any one of first to fourth modes in which a detection direction or a detection distance is different.
- the transmit channel antenna and the receive channel antenna may have a 3dB beam width characteristic of 150° or more.
- the second mode is a medium/far forward/backward detection mode, and when the second mode is selected, the control unit sets the phases of the channel signals transmitted by the N transmission channel antennas to be the same. can be controlled
- the controller may control outputs of channel signals transmitted by the N transmission channel antennas to be symmetric with respect to the center of the N transmission channel antennas. .
- the third mode is a side maximum detection mode, and when the third mode is selected, the phases of the channel signals transmitted by the N transmission channel antennas are placed at the center among the N transmission channel antennas. It is possible to control the transmission channel antenna and the transmission channel antenna disposed at both ends to have a 180° difference.
- the control unit when selecting the third mode, when N is an odd number, transmits an output of a channel signal transmitted by the N transmission channel antennas among the N transmission channel antennas arranged in the center. Controlling the transmission channel antennas disposed on both sides with respect to the channel antenna to be symmetrical to each other, or if N is an even number, one of the transmission channel antennas disposed in the center adjacent to each other is controlled to the maximum output, but the remaining transmission channel antennas can be controlled with a lower output.
- the fourth mode is a detection direction change mode, and when the fourth mode is selected, the controller determines a phase of a channel signal transmitted by the N transmission channel antennas among the N transmission channel antennas. , can be controlled to have the same difference from the transmission channel antenna disposed at one end to the transmission channel antenna disposed at the other end.
- the controller when the fourth mode is selected, arranges the output of the channel signal transmitted by the N transmission channel antennas from the transmission channel antenna disposed at one end to the other end among the N transmission channel antennas. It can be controlled to have the same difference as it goes to the transmitted channel antenna.
- the same difference may be any one of 0° to 180°.
- the N transmit channel antennas are arranged at intervals of 0.5 ⁇
- the M receive channel antennas are arranged at intervals of multiples of 0.5 ⁇ , wherein the multiples of 0.5 ⁇ are 0.5 ⁇ and the N may be less than or equal to the product of
- a short-distance front/rear detection mode, a mid/far-range front/rear detection mode, a side maximum detection mode, and a detection direction change mode through one radar module can be implemented at one time, so there is an effect that the number of mountings can be minimized.
- FIG. 1 is a view showing an area detected by a conventional autonomous vehicle and a radar module mounted thereon as viewed from the top.
- FIG. 2 is a diagram illustrating the configuration of a multi-mode radar module according to an embodiment of the present invention.
- 3 is a diagram exemplarily illustrating a reception channel unit including four reception channel antennas when M is 4;
- 4 is a diagram exemplarily illustrating a transmission channel unit including three transmission channel antennas when N is 3;
- FIG. 5 is a diagram illustrating a radiation pattern of a transmission channel antenna according to the first mode.
- FIG. 6 is a table describing a channel signal output and a phase of a transmission channel antenna according to the second mode.
- FIG. 7 is a diagram illustrating a radiation pattern of a transmission channel antenna according to the second mode.
- FIG. 9 is a diagram illustrating a radiation pattern of a transmission channel antenna according to a third mode.
- 10 is a table of channel signal output and phase of a transmission channel antenna according to the fourth mode.
- FIG. 11 is a diagram illustrating a radiation pattern of a transmission channel antenna according to a fourth mode.
- FIG. 12 is a diagram illustrating an area detected by the multi-mode radar module according to FIG. 1 and an embodiment of the present invention.
- FIG. 1 is a view illustrating an area detected by a conventional autonomous vehicle (AV) and a radar module mounted thereon as viewed from the top.
- AV autonomous vehicle
- FIG. 1 it can be seen that regions detected by SRR, MRR, and LRR at the front of the autonomous vehicle AV, SRR and MRR at the rear, and WFR around the vehicle are shown.
- LRR direction the detection distance
- SRR direction the detection distance
- WFR has an overwhelmingly high FoV. This is because WFR is used for blind spot detection or lane detection when changing lanes.
- the multi-mode radar module 100 according to an embodiment of the present invention that can solve these problems at once will be described.
- FIG. 2 is a diagram showing the configuration of the multi-mode radar module 100 according to an embodiment of the present invention.
- the multi-mode radar module 100 includes a reception channel unit 10, a transmission channel unit 20, a control unit 30 and a power supply unit 40, and other objects of the present invention are achieved. Of course, it may further include conventional configurations required in doing so.
- the reception channel unit 10 includes M (M is a positive integer) number of reception channel antennas 11 .
- the reception channel antenna 11 may be a wide-angle antenna having a 3dB beam width characteristic of 150° or more.
- M is a positive integer and there is no limitation in its size.
- the reception channel unit 10 may operate as a Multi Inout Multi Output (MIMO) system.
- MIMO Multi Inout Multi Output
- each reception channel antenna 11 is 0.5 It is arranged at multiple intervals of ⁇ , and the multiple intervals of 0.5 ⁇ may be less than or equal to the product of 0.5 ⁇ and N, which is the number of transmission channel antennas 21 to be described later.
- the reception channel antenna 11 may be disposed with any one of 0.5 ⁇ , 1 ⁇ , and 1.5 ⁇ as an interval, but a 2 ⁇ interval exceeding 1.5 ⁇ , which is the product of 0.5 ⁇ and N of 3 It cannot be placed as
- FIG. 3 exemplarily shows the reception channel unit 10 including four reception channel antennas 11 when M is 4, and the spacing between the individual reception channel antennas 11 is uniformly arranged at 1.5 ⁇ . It can be confirmed that this is done, and in the following description, it is assumed that the description is continued.
- the transmission channel unit 20 includes N (N is a positive integer) number of transmission channel antennas 21 .
- the transmit channel antenna 21 may also be a wide-angle antenna having a 3dB beam width characteristic of 150° or more, similar to the receive channel antenna 11, and in this case, when mounted in an autonomous vehicle (AV), the detectable angle can be extended.
- AV autonomous vehicle
- N is a positive integer and there is no limitation in its size, and when N is 2 or more, the transmission channel unit 20 may operate as a Multi Inout Multi Output (MIMO) system.
- MIMO Multi Inout Multi Output
- N is 2 or more, but also a certain regularity is required for the arrangement of each transmission channel antenna 21, and each transmission channel antenna 21 is 0.5 It may be arranged at intervals of multiples of ⁇ .
- the arrangement interval of the receive channel antenna 11 included in the receive channel unit 10 is less than or equal to the product of a multiple of 0.5 ⁇ and N
- the arrangement interval of the transmit channel antenna 21 is 0.5 ⁇
- the arrangement interval of the receiving channel antenna 11 may be 0.5 ⁇ , 1 ⁇ , 1.5 ⁇ ... 0.5 ⁇ * N
- the arrangement interval of the transmitting channel antenna 21 may be less than or equal to the arrangement interval of the receiving channel antenna 11 .
- M which is the number of reception channel antennas 11 included in the reception channel unit 10
- N the number of transmission channel antennas, 21, included in the transmission channel unit 20
- M It is generally more than N, but it is not necessarily limited thereto, and the reverse case is also possible.
- the controller 30 individually controls the phase or output of channel signals transmitted by the N transmission channel antennas according to the selection of the detection mode.
- the detection mode is selected to change driving conditions such as forward, reverse, turn, lane change, and parking.
- This may be a driver's selection or a control signal reception from an ECU (not shown) according to the driver's selection, but for convenience of description, it will be briefly described as a selection of a detection mode.
- the detection mode may be any one of the first to fourth modes provided to perform different functions in response to various driving conditions.
- the first mode will be described in order.
- the first mode is a short-distance forward/backward detection mode in which the channel signals of the transmission channel antennas 21 are individually operated without synthesizing, and may be divided into a single transmission operation first mode and a multi-channel transmission operation first mode.
- the first mode of the single transmission operation means that the number of transmission channel antennas is 1, that is, when N is 1.
- the multi-mode radar module 100 according to an embodiment of the present invention is an M-channel antenna module. can operate as
- the first mode of multi-channel transmission operation refers to a case in which the number of transmission channel antennas is plural, that is, when N is 2 or more.
- the multi-mode radar module 100 according to an embodiment of the present invention has It can operate as a MIMO system, which is a radar module, and accordingly, the accuracy of the radar can be improved, so it will be suitable for the short-range forward/backward detection mode.
- the number of reception channel antennas 11 included in the reception channel unit 10 is four, and the transmission channel antennas 21 included in the transmission channel unit 20 . If the number of is 3, it can operate as a 12-channel radar module, and the precision can be improved because the number of channels that detect a certain detection area increases.
- FIG. 5 shows a radiation pattern of the transmission channel antenna 21 according to the first mode.
- the gain of the radiation pattern is relatively uniformly arranged regardless of the phase change of the channel signal, This can also be seen as indicating the function of the first mode suitable for the short-range forward/rear detection mode (SRR) because the precision is improved.
- SRR short-range forward/rear detection mode
- the second mode is a mid/far forward/backward detection mode in which the channel signals of the transmission channel antennas 21 are synthesized
- FIG. 6 is a table describing the channel signal output and phase of the transmission channel antenna 21 according to the second mode.
- the number of the transmit channel antennas 21 is three as previously assumed in FIG. 4, for convenience, they will be described as a first transmit channel antenna, a second transmit channel antenna, and a third transmit channel antenna.
- the controller 30 may control the phases of the channel signals transmitted by the N transmission channel antennas 21 to be the same.
- the channel signal phases of the first transmission channel antenna, the second transmission channel antenna, and the third transmission channel antenna are all the same at 0°. can increase
- 0° which is the phase of the channel signal
- 0° is an exemplary value and can be controlled to a different value and is not necessarily limited thereto. It would be desirable to control the same to extend straight forward/backward, and if the phase of the channel signal is not 0°, it will have directivity toward the direction of the corresponding phase.
- the controller 30 may control the output of the channel signals transmitted by the N transmission channel antennas 21 to be symmetrical with respect to the center of the N transmission channel antennas 21 . .
- the output of the first transmission channel antenna is -6dBm and the output of the third transmission channel antenna is also -6dBm with respect to the second transmission channel antenna disposed in the center. Bar, through this, high radiation power and low side lobe characteristics can be implemented.
- FIG. 7 shows a radiation pattern of the transmission channel antenna 21 according to the second mode.
- the gain increases as it approaches 0°, which is the center, which also increases the detection distance and high radiation. It can be seen that it represents the function of the second mode suitable for the mid/long-range forward/rear detection mode that needs to implement power.
- the third mode is a side maximum detection mode in which the channel signals of the transmission channel antennas 21 are synthesized, and different from the conventional side detection mode WFR, a new method according to the present invention that can increase the detection characteristic in the lateral direction to the maximum value.
- mode, the channel signal output and phase of the transmission channel antenna 21 according to the third mode are described in a table in FIG. 8 .
- the controller 30 sets the phase of the channel signal transmitted by the N transmission channel antennas 21 to 180° difference between the adjacent transmission channel antennas among the N transmission channel antennas 21 . can be controlled
- the phase of the channel signal of the second transmission channel antenna disposed in the center is 0°
- the phases of the channel signals of the first transmission channel antenna and the third transmission channel antenna disposed at both ends are -180°, and it can be seen that the phase difference between the adjacent first and second transmission channel antennas, the second transmission channel antenna, and the third transmission channel antenna is 180°.
- 0° which is the phase of the channel signal of the second transmission channel antenna
- 0° is an exemplary value and can be controlled to a different value, but is not limited thereto, but a first transmission channel antenna adjacent to the second transmission channel antenna and Since it will be controlled to be 180° different from the phase of the channel signal of the third transmission channel antenna, only the direction of the focusing side will be different, and the overall appearance will be similarly implemented.
- control unit 30 controls the output of the channel signal transmitted by the N transmission channel antennas 21 to be arranged on both sides of the N transmission channel antennas with respect to the centrally located transmission channel antenna. Control the transmit channel antennas to be symmetrical to each other (when N is an odd number), or control one of the centrally located neighboring transmit channel antennas to the maximum output, but the other transmit channel antennas can be controlled to have a lower output. Yes (if N is even).
- the output of the first transmission channel antenna is -8dBm and the output of the third transmission channel antenna is also -8dBm, which is symmetric with respect to the second transmission channel antenna arranged in the center.
- N is an odd number
- high radiation power can be realized through this, and the detection characteristic in the lateral direction can be maximized differently from WFR, which is a conventional lateral detection mode, and there is some possibility of occurrence.
- the front null phenomenon can be adjusted by adjusting the feeding power for each transmission channel antenna 212 .
- N is an even number, for example, when N is 4, the output of any one of the second transmission channel antenna and the third transmission channel antenna that are adjacent transmission channel antennas arranged in the center At 0 dBm, the other output may be controlled to -6 dBm, and outputs of the first and fourth transmission channel antennas, which are the remaining transmission channel antennas, may be controlled to -6 dBm and -8 dBm lower than 0 dBm.
- FIG. 9 shows a radiation pattern of the transmission channel antenna 21 according to the third mode.
- the gain increases as it approaches the ⁇ 90° vicinity of both ends, and the gain decreases as it approaches the center 0°. Also, this can be seen as indicating the function of the third mode suitable for the side maximal detection mode that needs to detect the widest side area.
- This third mode may be very usefully utilized in an environment in which a lot of blind spots occur due to the presence of a parked vehicle or an alley in a low-speed driving situation, such as on a back road.
- the fourth mode is a detection direction change mode in which the channel signals of the transmission channel antennas 21 are synthesized. Like the third mode, the fourth mode is a new mode according to the present invention. The channel signal output and phase are tabulated.
- the controller 30 changes the phase of the channel signal transmitted by the N transmission channel antennas 21 from the transmission channel antenna disposed at one end to the transmission channel antenna disposed at the other end among the N transmission channel antennas. It can be controlled to have the same difference from each other gradually.
- the phase of the channel signal of the first transmission channel antenna disposed at one end is 0°
- the phase of the channel signal of the second transmission channel antenna disposed in the center is -140°
- the phase of the channel signal of the second transmission channel antenna disposed at the center is -140°.
- the phase of the channel signal of the third transmission channel antenna is -280°.
- 0° which is the phase of the channel signal of the first transmission channel antenna
- 0° is an exemplary value and can be controlled to a different value, but is not limited thereto, but the channel signal of the second transmission channel antenna and the third transmission channel antenna Since it will be controlled to have the same difference as the phase, only the direction to be detected will be different, and the overall appearance will be similarly implemented.
- 140° which is the same difference between the phase of the channel signal of the first transmission channel antenna, the phase of the channel signal of the second transmission channel antenna, and the phase of the channel signal of the third transmission channel antenna, is also an exemplary value, and the same difference with a different value It can be controlled to put , and it can be controlled to put any one of 0° to 180° as a difference.
- the second mode may be operated, and if the same difference is 180°, the third mode may be operated.
- the fourth mode may perform an intermediate operation between the second mode and the third mode.
- LCA Li Change Assist
- RCTA Rear Cross Traffic Alert
- the controller 30 arranges the output of the channel signal transmitted by the N transmission channel antennas 21 from the transmission channel antenna disposed at one end to the other end among the N transmission channel antennas 21 . It can be controlled to have the same difference as it goes to the transmitted channel antenna, and the direction in which the same difference is provided is the same as the direction in which the same difference is provided in the phase control described above.
- the output of the channel signal of the first transmission channel antenna disposed at one end is 0 dBm
- the output of the channel signal of the second transmission channel antenna disposed in the center is -4 dBm
- the output of the channel signal is disposed at the other end.
- the output of the channel signal of the third transmission channel antenna is -8dBm, it is possible to increase the detection distance for a specific direction to the maximum value and to minimize the null phenomenon.
- 4dBm which is the same difference between the output of the channel signal of the first transmission channel antenna, the output of the channel signal of the second transmission channel antenna, and the output of the channel signal of the third transmission channel antenna, is also an exemplary value.
- the radiation pattern is asymmetrical differently from the first to third modes, near -75°, - It can be seen that the gain is high only in a specific phase, such as around 15° and 45°, and this can also be seen as representing the function of the fourth mode in which the detection for a specific detection direction must be concentrated by changing the detection direction.
- the power supply unit 40 supplies power to the reception channel unit 10, the transmission channel unit 20 and the control unit 30, and the power signal supplied to the power unit 40 is a battery (AV) mounted on the autonomous vehicle (AV). Power can be effectively supplied to the reception channel unit 10, the transmission channel unit 20, and the control unit 30 by repeating charging and discharging by receiving the supply from the unit (not shown), and does not operate in the first to fourth modes. Otherwise, it may operate in a sleep mode to prevent unnecessary power consumption.
- AV autonomous vehicle
- the present invention has been described with respect to the multi-mode radar module 100 according to an embodiment.
- a short-distance front/rear detection mode, a mid/far-range front/rear detection mode, a side maximum detection mode, and a detection direction change mode can be implemented at once through a single radar module. Therefore, it is possible to minimize the number of mountings, and at the same time, it is possible to prevent an increase in the price of an autonomous vehicle (AV).
- the area detected by the conventional autonomous driving vehicle (AV) and the radar module mounted thereon shown in FIG. 1 is indicated by a dotted line, and the area detected by the multi-mode radar module 100 according to an embodiment of the present invention is shown with a solid line, and it can be seen that the number of mountings as well as advantages in the detection distance, detection direction, and detection area are significantly reduced from 9 to 4 in the prior art.
- AV autonomous driving vehicle
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Abstract
Description
Claims (10)
- M(M은 양의 정수)개의 수신 채널 안테나를 포함하는 수신 채널부; a reception channel unit including M (M is a positive integer) number of reception channel antennas;N(N은 양의 정수)개의 송신 채널 안테나를 포함하는 송신 채널부;a transmission channel unit including N (N is a positive integer) number of transmission channel antennas;탐지 모드(Mode)의 선택에 따라 상기 N개의 송신 채널 안테나가 송신하는 채널 신호의 위상 또는 출력을 개별적으로 제어하는 제어부; 및a control unit for individually controlling a phase or output of a channel signal transmitted by the N transmission channel antennas according to a selection of a detection mode; and상기 수신 채널부, 송신 채널부 및 제어부에 전원을 공급하는 전원부;a power supply unit for supplying power to the reception channel unit, the transmission channel unit, and the control unit;를 포함하는 다중 모드 레이다 모듈에 있어서,In a multi-mode radar module comprising:상기 탐지 모드는, The detection mode is탐지 방향 또는 탐지 거리가 상이한 제1 모드 내지 제4 모드 중 어느 하나인, Any one of the first to fourth modes in which the detection direction or the detection distance is different,다중 모드 레이다 모듈.Multimode radar module.
- 제1항에 있어서,According to claim 1,상기 송신 채널 안테나 및 수신 채널 안테나는, The transmit channel antenna and the receive channel antenna,150° 이상의 3dB 빔 폭 특성을 갖는, having a 3dB beam width characteristic of 150° or more,다중 모드 레이다 모듈. Multimode radar module.
- 제1항에 있어서, According to claim 1,상기 제2 모드는, The second mode is중/원거리 전방/후방 탐지 모드이며, It is a medium/far forward/rear detection mode,상기 제2 모드 선택 시 상기 제어부는, When the second mode is selected, the control unit,상기 N개의 송신 채널 안테나가 송신하는 채널 신호의 위상을 모두 동일하게 제어하는, All of the phases of the channel signals transmitted by the N transmission channel antennas are equally controlled,다중 모드 레이다 모듈.Multimode radar module.
- 제3항에 있어서,4. The method of claim 3,상기 제2 모드 선택 시, 상기 제어부는, When the second mode is selected, the control unit,상기 N개의 송신 채널 안테나가 송신하는 채널 신호의 출력을 상기 N개의 송신 채널 안테나의 중심을 기준으로 서로 대칭이 되도록 제어하는, Controlling outputs of channel signals transmitted by the N transmission channel antennas to be symmetric with respect to the center of the N transmission channel antennas,다중 모드 레이다 모듈. Multimode radar module.
- 제1항에 있어서,According to claim 1,상기 제3 모드는, The third mode is측면 최대 탐지 모드이며, side max detection mode,상기 제3 모드 선택 시, 상기 제어부는, When the third mode is selected, the control unit,상기 N개의 송신 채널 안테나가 송신하는 채널 신호의 위상을 상기 N개의 송신 채널 안테나 중, 중심에 배치된 송신 채널 안테나와 양단에 배치된 송신 채널 안테나가 180° 차이를 두도록 제어하는, Controlling the phase of the channel signal transmitted by the N transmission channel antennas so that, among the N transmission channel antennas, a transmission channel antenna disposed at the center and a transmission channel antenna disposed at both ends have a 180° difference,다중 모드 레이다 모듈.Multimode radar module.
- 제5항에 있어서, 6. The method of claim 5,상기 제3 모드 선택 시, 상기 제어부는, When the third mode is selected, the control unit,상기 N이 홀수인 경우 상기 N개의 송신 채널 안테나가 송신하는 채널 신호의 출력을 상기 N개의 송신 채널 안테나 중, 중앙에 배치된 송신 채널 안테나를 기준으로 양쪽에 배치된 송신 채널 안테나가 서로 대칭이 되도록 제어하거나, 상기 N이 짝수인 경우 중앙에 배치된 서로 이웃하는 송신 채널 안테나 중 어느 하나를 최대 출력으로 제어하되, 나머지 송신 채널 안테나는 이보다 낮은 출력으로 제어하는,When N is an odd number, the output of the channel signals transmitted by the N transmission channel antennas is adjusted so that the transmission channel antennas disposed on both sides of the N transmission channel antennas are symmetrical with respect to the central transmission channel antennas. control, or, when N is an even number, controlling any one of the centrally arranged neighboring transmission channel antennas to the maximum output, but controlling the other transmission channel antennas to have a lower output than this,다중 모드 레이다 모듈.Multimode radar module.
- 제1항에 있어서, According to claim 1,상기 제4 모드는, The fourth mode is탐지 방향 변경 모드이며, detection direction change mode,상기 제4 모드 선택 시, 상기 제어부는, When the fourth mode is selected, the control unit,상기 N개의 송신 채널 안테나가 송신하는 채널 신호의 위상을 상기 N개의 송신 채널 안테나 중, 일단에 배치된 송신 채널 안테나로부터 타단에 배치된 송신 채널 안테나로 갈수록 각각 동일한 차이를 두도록 제어하는, Controlling the phases of the channel signals transmitted by the N transmission channel antennas to have the same difference from the transmission channel antennas disposed at one end to the transmission channel antennas disposed at the other end among the N transmission channel antennas,다중 모드 레이다 모듈. Multimode radar module.
- 제7항에 있어서, 8. The method of claim 7,상기 제4 모드 선택 시, 상기 제어부는, When the fourth mode is selected, the control unit,상기 N개의 송신 채널 안테나가 송신하는 채널 신호의 출력을 상기 N개의 송신 채널 안테나 중, 일단에 배치된 송신 채널 안테나로부터 타단에 배치된 송신 채널 안테나로 갈수록 각각 동일한 차이를 두도록 제어하는, Controlling the output of the channel signal transmitted by the N transmission channel antennas to have the same difference from the transmission channel antenna disposed at one end to the transmission channel antenna disposed at the other end among the N transmission channel antennas,다중 모드 레이다 모듈. Multimode radar module.
- 제7항에 있어서, 8. The method of claim 7,상기 동일한 차이는, The same difference is0° 내지 180°중 어느 하나인, Any one of 0° to 180°,다중 모드 레이다 모듈. Multimode radar module.
- 제1항에 있어서, According to claim 1,상기 N개의 송신 채널 안테나는, The N transmit channel antennas,0.5λ 간격으로 배치되며, are arranged at 0.5λ intervals,상기 M개의 수신 채널 안테나는, The M receive channel antennas,0.5λ의 배수 간격으로 배치되되, 상기 0.5λ의 배수 간격은 0.5λ와 상기 N의 곱 이하인, Doedoe arranged at multiple intervals of 0.5λ, wherein the multiple intervals of 0.5λ are less than or equal to the product of 0.5λ and N,다중 모드 레이다 모듈. Multimode radar module.
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JP2017147487A (en) * | 2016-02-15 | 2017-08-24 | マツダ株式会社 | Vehicle including radar device |
KR20170122156A (en) * | 2017-10-18 | 2017-11-03 | 호서대학교 산학협력단 | A Fixed Type of Radar Antenna Apparatus with a Structure of Sharing Phase Control and a Method for Controlling the Same |
KR20180075043A (en) * | 2016-12-26 | 2018-07-04 | 엘지이노텍 주식회사 | Radar module and automotive radar apparatus having the same |
KR20180124488A (en) * | 2017-05-12 | 2018-11-21 | 엘지이노텍 주식회사 | Radar module and automotive radar apparatus having the same |
KR20180132853A (en) * | 2016-05-12 | 2018-12-12 | 발레오 샬터 운트 센소렌 게엠베아 | Vehicle radar sensor device, driver assistance system, vehicle, and object detection method |
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JP2017147487A (en) * | 2016-02-15 | 2017-08-24 | マツダ株式会社 | Vehicle including radar device |
KR20180132853A (en) * | 2016-05-12 | 2018-12-12 | 발레오 샬터 운트 센소렌 게엠베아 | Vehicle radar sensor device, driver assistance system, vehicle, and object detection method |
KR20180075043A (en) * | 2016-12-26 | 2018-07-04 | 엘지이노텍 주식회사 | Radar module and automotive radar apparatus having the same |
KR20180124488A (en) * | 2017-05-12 | 2018-11-21 | 엘지이노텍 주식회사 | Radar module and automotive radar apparatus having the same |
KR20170122156A (en) * | 2017-10-18 | 2017-11-03 | 호서대학교 산학협력단 | A Fixed Type of Radar Antenna Apparatus with a Structure of Sharing Phase Control and a Method for Controlling the Same |
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