WO2023132044A1 - Dispositif de commande de lumière, système de commande de lumière et procédé de commande de lumière - Google Patents

Dispositif de commande de lumière, système de commande de lumière et procédé de commande de lumière Download PDF

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Publication number
WO2023132044A1
WO2023132044A1 PCT/JP2022/000306 JP2022000306W WO2023132044A1 WO 2023132044 A1 WO2023132044 A1 WO 2023132044A1 JP 2022000306 W JP2022000306 W JP 2022000306W WO 2023132044 A1 WO2023132044 A1 WO 2023132044A1
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Prior art keywords
driver
partial area
light distribution
distribution control
control device
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PCT/JP2022/000306
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English (en)
Japanese (ja)
Inventor
極 井上
悟 井上
弘毅 中本
潤一 今儀
亮介 虎間
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2022/000306 priority Critical patent/WO2023132044A1/fr
Priority to JP2023572302A priority patent/JP7442756B2/ja
Publication of WO2023132044A1 publication Critical patent/WO2023132044A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/24—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • the present disclosure relates to a light distribution control device, a light distribution control system, and a light distribution control method.
  • Patent Document 1 which is common to the light distribution control device or the like according to the present disclosure in that it follows the line-of-sight direction of the driver of the vehicle, is intended to illuminate in the direction the driver wants to see.
  • One method is to detect the amount of change over time in the line-of-sight direction of the driver.
  • An object of the present disclosure is to provide a light distribution control device, a light distribution control system, and a light distribution control method that can illuminate a place that the driver wants to see even if the line of sight of the driver cannot be detected. to do.
  • a light distribution control device includes a receiving unit that receives at least one of information related to the driver's line of sight, face direction, or posture direction, and a region in front of the vehicle. It is divided into a plurality of partial areas including a front partial area positioned in front of the vehicle and an upper partial area, a lower partial area, a left partial area, and a right partial area that are vertically and horizontally adjacent to the front partial area.
  • the light distribution control device even if the line of sight of the driver cannot be detected, the place that the driver wants to see, that is, the partial area that the driver wants to see can be illuminated. .
  • FIG. 3 is a functional block diagram of the light distribution control device HSD of Embodiment 1.
  • FIG. 2A shows the region R and the partial region BR (in the case of line-of-sight SSN) of the first embodiment.
  • FIG. 2B shows the region R and the partial region BR (in the case of face orientation KMK) of the first embodiment.
  • FIG. 2C shows the region R and the partial region BR (for posture SSI) of the first embodiment.
  • 2 shows a hardware configuration of a light distribution control device HSD of Embodiment 1.
  • FIG. 4 is a flowchart showing the operation of the light distribution control device HSD of Embodiment 1;
  • FIG. 5 is a flow chart showing the operation of the light distribution control device HSD of the second embodiment.
  • FIG. 6A shows the operation of the light distribution control device HSD of Embodiment 3 (in the case of line of sight SSN).
  • FIG. 6B shows the operation of the light distribution control device HSD of Embodiment 3 (in the case of face direction KMK).
  • FIG. 6C shows the operation of the light distribution control device HSD of Embodiment 3 (in the case of attitude SSI).
  • 4 shows detection conditions in the light distribution control device HSD of Embodiment 4.
  • FIG. FIG. 8A shows the operation (part 1-1) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 8B shows the operation (part 1-2) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 8C shows the operation (part 1-3) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 8D shows the operation (part 1-4) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 8E shows the operation (part 1-5) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 9A shows the operation (part 2-1) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 9B shows the operation (part 2-2) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 9C shows the operation (part 2-3) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 10A shows the operation (part 3-1) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 10B shows the operation (part 3-2) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 10C shows the operation (part 3-3) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 10D shows the operation (part 3-4) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 10E shows the operation (part 3-5) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 11A shows the operation (part 4-1) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 11B shows the operation (part 4-2) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 11C shows the operation (part 4-3) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 11 shows the operation (part 1) of the light distribution control device HSD of the fifth embodiment;
  • FIG. 13A shows the operation (part 2-1) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 13B shows the operation (part 2-2) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 14A shows the operation (part 3-1) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 14B shows the operation (part 3-2) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 15A shows the operation (part 4-1) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 15B shows the operation (part 4-2) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 16A shows the operation (part 5-1) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 16B shows the operation (part 5-2) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 17A shows the operation (part 1-1) of the light distribution control device HSD of the sixth embodiment.
  • FIG. 17B shows the operation (part 1-2) of the light distribution control device HSD of the sixth embodiment.
  • FIG. 17C shows the operation (part 1-2) of the light distribution control device HSD of the sixth embodiment.
  • FIG. 18A shows the operation (part 2-1) of the light distribution control device HSD of the sixth embodiment.
  • FIG. 18B shows the operation (part 2-2) of the light distribution control device HSD of the sixth embodiment.
  • FIG. 18C shows the operation (part 2-3) of the light distribution control device HSD of the sixth embodiment.
  • Embodiment 1 A light distribution control device according to the first embodiment will be described.
  • SYBR front partial region
  • SYBR1 front partial region SYBR1
  • SYBR2 front partial region SYBR3
  • FIG. 1 is a functional block diagram of the light distribution control device HSD of Embodiment 1.
  • FIG. Functions of the light distribution control device HSD of Embodiment 1 will be described with reference to FIG.
  • the light distribution control device HSD of Embodiment 1 constitutes a light distribution control system HSS together with the driver monitoring system DMS and the lamp SY, as shown in FIG.
  • the light distribution control device HSD includes, for example, a receiving unit JU, a detecting unit KE, and a control unit SE in order to control the operation of irradiation by the irradiation lamp SY mounted on the own vehicle JS (shown in FIG. 6, for example). including.
  • the receiving unit JU corresponds to the "receiving unit”
  • the detection unit KE corresponds to the “detection unit”
  • the control unit SE corresponds to the "control unit”.
  • the receiving unit JU receives at least one of the information related to the line of sight, face direction, or posture direction of the driver.
  • the detection unit KE receives information from the driver monitoring system DMS via the reception unit JU and selects a plurality of partial regions BR (for example, shown in FIG. 2) is detected.
  • the detection unit KE receives information from the driver monitoring system DMS, such as, for example, the direction of the line of sight SSN of the driver US, the direction of the face KMK, and the direction of the posture SSI.
  • the driver monitoring system DMS includes, for example, a camera that captures still or moving images.
  • the illumination lamp SY additionally illuminates the low beam or high beam, and the additional illumination may be performed by the headlamp itself or by an additional lamp, such as a spot beam. When the headlamp itself is used, the light amount of the low beam and high beam may be increased or decreased, or additional low beam and high beam may be turned on.
  • FIG. 2 shows the region R and the partial region BR of the first embodiment.
  • a region R is a region in front of the vehicle, and as shown in FIGS. 2A to 2C, is a range that the driver US riding in the own vehicle JS may see.
  • the partial area BR is a range divided from the area R.
  • the region R is divided, for example, into five partial regions BR, as shown in FIGS. 2A-2C.
  • the region R includes a front partial region SYBR located in front of the host vehicle JS, that is, in the front (X-axis direction), and a vertical direction (Z-axis direction) or a horizontal direction ( Y-axis direction) are divided into an upper partial region UEBR, a lower partial region SIBR, a left partial region HIBR, and a right partial region MIBR.
  • the X-axis direction is the longitudinal direction of the vehicle JS
  • the Y-axis direction is the lateral direction of the vehicle
  • the Z-axis direction is the vertical direction with respect to the road surface.
  • the area R corresponds to the "area”.
  • Area R is divided into the following three types.
  • the region R is divided into the front partial region SYBR1, the upper partial region UEBR1, and the upper partial region UEBR1, as shown in FIG. 2A. It is divided into a lower partial area SIBR1, a left partial area HIBR1, and a right partial area MIBR1.
  • the region R is divided into the front partial region SYBR2 and the upper partial region UEBR2 as shown in FIG. 2B. , a lower partial area SIBR2, a left partial area HIBR2, and a right partial area MIBR2.
  • the region R is divided into the front partial region SYBR3, the upper partial region UEBR3, and the upper partial region UEBR3, as shown in FIG. 2C. It is divided into a lower partial area SIBR3, a left partial area HIBR3, and a right partial area MIBR3.
  • the front partial region SYBR1 corresponds to the "front partial region of the line of sight”
  • the upper partial region UEBR1 corresponds to the "upper partial region of the line of sight”
  • the lower partial region SIBR1 corresponds to the "lower partial region of the line of sight”.
  • the right partial region MIBR1 corresponds to the "right partial region of the line of sight”
  • the left partial region HIBR1 corresponds to the "left partial region of the line of sight”.
  • the front partial region SYBR2 corresponds to the “front partial region for face orientation”
  • the upper partial region UEBR2 corresponds to the “upper partial region for face orientation”
  • the lower partial region SIBR2 corresponds to the “lower partial region for face orientation”.
  • the right partial region MIBR2 corresponds to the “right partial region for face orientation”
  • the left partial region HIBR2 corresponds to the “left partial region for face orientation”.
  • the front partial region SYBR3 corresponds to the “front partial region of posture”
  • the upper partial region UEBR3 corresponds to the “upper partial region of posture”
  • the lower partial region SIBR3 corresponds to the “lower partial region of posture”.
  • the right partial region MIBR3 corresponds to the "right partial region of posture”
  • the left partial region HIBR3 corresponds to the "left partial region of posture”.
  • the division of the region R into the partial regions BR is performed by the detection unit KE prior to detecting which partial region BR the line of sight SSN, face orientation KMK, and posture SSI of the driver US are directed to. It is performed by the unit KE or stored in advance in the storage medium KB (shown in FIG. 3) regardless of the timing of detection by the detection unit KE.
  • the size of the front partial region SYBR is [front partial region SYBR1 for detecting that the line of sight SSN is facing the front]>[face direction KMK is facing the front]
  • the distances in which the line of sight SSN, face direction KMK, and posture SSI of the driver US move are in the relationship of [distance in which line of sight SSN moves] > [distance in which face direction KMK moves] > [distance in which posture SSI moves]. be.
  • the driver US tries to look in a certain direction, he/she twists his/her body to turn his/her posture in that direction, but the amount of twisting of the body is not so large. Therefore, it is necessary to increase the detection sensitivity in order to detect that the direction in which the driver US is looking is changed even if the posture is slightly changed.
  • the front partial region SYBR3 of posture is smaller in size than the front partial region SYBR1 of line of sight.
  • face orientation Detection that the driver US is looking at one of the upper, lower, left, and right partial areas has a higher sensitivity in the order of line of sight ⁇ face direction ⁇ posture.
  • the line of sight SSN, face orientation KMK, and posture SSI of the driver US are aligned in the front, that is, in the front partial region SYBR1 (shown in FIG. 2A), respectively, and in the front partial region SYBR2. (shown in FIG. 2B) and into the front partial area SYBR3 (shown in FIG. 2C).
  • the principle by which the light distribution control device HSD of Embodiment 1 detects the partial area viewed by the driver US is as follows.
  • the line-of-sight SSN deviates from the relatively wide front partial region SYBR1 due to the movement of the above-described relatively long distance, and moves upward.
  • the location that the driver US is looking at is detected depending on which of the four partial regions BR from the partial region UEBR1 to the right partial region MIBR1 is moved to.
  • the upper partial region UEBR2 to The location that the driver US is looking at is detected depending on which of the four partial areas BR of the right partial area MIBR2 is moved to.
  • the control unit SE causes the illumination lamp SY to illuminate the partial area BR facing the driver US detected by the detection unit KE. For example, when the detection unit KE detects that the line of sight SSN of the driver US is directed toward the upper partial region UEBR1, the control unit SE controls the illumination lamp SY to illuminate the upper partial region UEBR1. Further, for example, when the detection unit KE detects that the face direction KMK of the driver US is directed toward the lower partial region SIBR2, the control unit SE causes the illumination lamp SY to illuminate the lower partial region SIBR2. Control. Further, for example, when the detection unit KE detects that the posture SSI of the driver US faces the left partial region HIBR3, the control unit SE controls the illumination lamp SY to illuminate the left partial region HIBR3. do.
  • FIG. 3 shows the hardware configuration of the light distribution control device HSD of the first embodiment.
  • the light distribution control device HSD of Embodiment 1 includes, as shown in FIG. 3, a processor PC, a memory MM, a storage medium KB, and an input unit NY and an output SH.
  • a processor PC is the core of a well-known computer that operates hardware according to software.
  • the memory MM is composed of, for example, a DRAM (Dynamic Random Access Memory) and an SRAM (Static Random Access Memory).
  • the storage medium KB is composed of, for example, a hard disk drive (HDD: Hard Disk Drive), a solid state drive (SSD: Solid State Drive), and a ROM (Read Only Memory).
  • a storage medium KB stores a program PR.
  • the program PR is a group of instructions that define the content of processing to be executed by the processor PC.
  • the input unit NY is configured, for example, as an interface for receiving information from the driver monitoring system DMS.
  • the output unit SH is configured as an interface that outputs an instruction signal to the irradiation lamp SY.
  • the processor PC executes the program PR stored in the storage medium KB using the memory MM, and if necessary, the program PR stored in the storage medium KB.
  • the functions of the detector KE and the controller SE are realized by controlling the operations of the input unit NY and the output unit SH.
  • FIG. 4 is a flow chart showing the operation of the light distribution control device HSD of the first embodiment. The operation of the light distribution control device HSD of Embodiment 1 will be described with reference to the flowchart of FIG.
  • Step ST11 The driver monitoring system DMS (illustrated in FIG. 1) detects at least one of the line of sight SSN, face direction KMK, and posture SSI of the driver US.
  • Step ST12 The detection unit KE receives information from the driver monitoring system DMS via the reception unit JU. , five partial regions BR, that is, the front partial region SYBR, the upper partial region UEBR, the lower partial region SIBR, the left partial region HIBR, and the right partial region MIBR, which partial region BR is viewed.
  • the detection unit KE Based on the line-of-sight SSN of the driver US, the detection unit KE, as shown in FIG. The partial area BR that the driver US is looking at is detected depending on which partial area BR is facing.
  • the posture SSI of the driver US is determined to be The partial area BR that the driver US is looking at is detected depending on which partial area BR is facing.
  • Step ST13 The control unit SE (shown in FIG. 1) controls the irradiation operation of the irradiation lamp SY so as to additionally irradiate the partial region BR detected by the detection unit KE.
  • the detection unit KE detects that the line of sight SSN of the driver US is directed toward, for example, the upper partial region UEBR1 (shown in FIG. 2A).
  • the control unit SE controls the irradiation operation of the irradiation lamp SY so as to irradiate the upper partial region UEBR1.
  • the detection unit KE detects that the face orientation KMK of the driver US is facing, for example, the lower partial region SIBR2 (shown in FIG. 2B).
  • the control unit SE controls the irradiation operation of the irradiation lamp SY so as to irradiate toward the lower partial region SIBR2.
  • the control unit SE controls the irradiation operation of the irradiation lamp SY so as to irradiate the left partial region HIBR3.
  • the detector KE detects the front partial region SYBR (however, , the size of the front partial region SYBR1 for the line of sight>the size of the front partial region SYBR2 for the face direction>the size of the front partial region SYBR3 for the posture.) to the right partial region MIBR. to detect whether it is facing
  • the control unit SE controls the irradiation operation of the irradiation lamp SY so as to additionally irradiate the partial region BR detected by the detection unit KE.
  • the face orientation KMK the partial region BR viewed by the driver US can be detected based on the posture SSI and additionally illuminated.
  • Embodiment 2 A light distribution control device according to the second embodiment will be described.
  • the light distribution control device HSD of the second embodiment basically has the same functions as the light distribution control device HSD of the first embodiment (shown in FIG. 1).
  • the light distribution control device HSD of the second embodiment has a partial region BR to which the line of sight SSN is directed, a partial region BR to which the face direction KMK is directed, and a posture SSI.
  • the partial area BR that is being viewed by the driver US is adopted as the partial area BR that is being viewed by the driver US according to the priority of this order.
  • the light distribution control device HSD of the second embodiment has the same hardware configuration as the hardware of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 5 is a flow chart showing the operation of the light distribution control device HSD of the second embodiment. The operation of the light distribution control device HSD of the second embodiment will be described with reference to the flowchart of FIG.
  • Step ST21 The detection unit KE (illustrated in FIG. 1) can receive the line of sight SSN of the driver US from the driver monitoring system DMS via the reception unit JU and detect the partial area viewed by the driver. Check whether or not More specifically, when it is determined that the partial area viewed by the driver can be detected by receiving the line-of-sight SSN of the driver US, the driver US detects the front partial area based on the line-of-sight SSN of the driver US. When it is determined that which of the five partial areas BR (shown in FIG. 2A) from SYBR1 to right partial area MIBR1 can be detected, the process proceeds to step ST22. On the other hand, when it is determined that the sight line SSN of the driver US cannot be detected, the process proceeds to step ST23.
  • Step ST22 The control unit SE (shown in FIG. 1) causes the illumination lamp SY to additionally irradiate the partial area BR that the driver US is looking at, which is detected by the detection unit KE based on the line of sight SSN of the driver US.
  • the irradiation operation of the irradiation lamp SY is controlled so as to
  • Step ST23 The detection unit KE confirms whether or not the face direction KMK of the driver US can be detected instead of the line of sight SSN of the driver US in step ST21. More specifically, when it is determined that the face orientation KMK of the driver US can be detected, the driver US detects the five regions from the front partial region SYBR2 to the right partial region MIBR2 based on the face orientation KMK of the driver US. When it is determined that it is possible to detect which of the regions BR (shown in FIG. 2B) is being viewed, the process proceeds to step ST24. On the other hand, when it is determined that the face orientation KMK of the driver US cannot be detected, the process proceeds to step ST25.
  • Step ST24 The control unit SE causes the irradiation lamp SY to additionally irradiate the partial region BR that the driver US is looking at, which is detected by the detection unit KE based on the face direction KMK of the driver US. control the irradiation operation of
  • Step ST25 The detection unit KE confirms whether or not the posture SSI of the driver US can be detected instead of the face orientation KMK of the driver US in step ST23.
  • the driver US detects five partial regions BR from the front partial region SYBR3 to the right partial region MIBR3. (shown in FIG. 2C), the process proceeds to step ST26.
  • the process ends.
  • Step ST26 The control unit SE controls the illumination lamp SY so that the illumination lamp SY additionally irradiates the partial area BR that the driver US is looking at, which is detected by the detection unit KE based on the posture SSI of the driver US. Control the irradiation operation.
  • the detection unit KE detects the portion viewed by the driver US in the order of high priority to low priority: line of sight SSN ⁇ face orientation KMK ⁇ posture SSI. Try to detect the region BR.
  • the driver US wears sunglasses, for example, and as a result, the line-of-sight SSN of the driver US cannot be detected, based on the face orientation KMK or posture SSI of the driver US,
  • the partial area BR viewed by the driver US can be detected, and the partial area BR viewed by the driver US can be illuminated.
  • the driver US wears, for example, a wide-brimmed hat or a large-sized mask, and as a result, both the line-of-sight SSN and face orientation KMK of the driver US are detected. Even if it is not possible, it is possible to detect the partial area BR that the driver US sees based on the posture SSI of the driver US, and additionally irradiate the partial area BR that the driver US sees. becomes possible.
  • Embodiment 3 A light distribution control device according to Embodiment 3 will be described.
  • the light distribution control device HSD of the third embodiment basically has the same functions as the light distribution control device HSD of the first embodiment (shown in FIG. 1).
  • the light distribution control device HSD of the third embodiment is different from the light distribution control device HSD of the first embodiment in that the range of illumination within the partial region BR viewed by the driver US detected based on the line of sight SSN, the face direction KMK and the range of irradiation within the partial region BR seen by the driver US detected based on the posture SSI are widened in this order. Become.
  • the light distribution control device HSD of the third embodiment has the same hardware configuration as the hardware of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 6 shows the operation of the light distribution control device HSD of the third embodiment.
  • the detection unit KE (illustrated in FIG. 1) detects that the driver US is looking at the left partial region HIBR1 (illustrated in FIG. 6A) based on the line of sight SSN of the driver US. (2) The detection unit KE detects that the driver US is looking at the left partial region HIBR2 based on the face orientation KMK of the driver US (shown in FIG. 6B). (3) The detection unit KE detects that the driver US is looking at the left partial region HIBR3 based on the posture SSI of the driver US (shown in FIG. 6C).
  • the control unit SE (illustrated in FIG. 1) controls the irradiation operation of the irradiation lamp SY so as to irradiate the left partial region HIBR1, as shown in FIG. 6A. More specifically, the control unit SE controls the irradiation operation of the irradiation lamp SY so as to irradiate an irradiation range SH1 having a predetermined size in the direction toward which the line of sight SSN is directed within the left partial region HIBR1.
  • the control unit controls the irradiation operation of the irradiation lamp SY so as to irradiate the left partial region HIBR2, as shown in FIG. 6B. More specifically, the control unit SE controls the irradiation operation of the irradiation lamp SY so as to irradiate an irradiation range SH2 having a predetermined size in the direction in which the face orientation KMK is directed within the left partial region HIBR2.
  • the irradiation range SH2 is wider than the irradiation range SH1.
  • the control unit SE controls the irradiation operation of the irradiation lamp SY so as to irradiate the left partial region HIBR3, as shown in FIG. 6C. More specifically, the control unit SE controls the irradiation operation of the irradiation lamp SY so as to irradiate an irradiation range SH3 having a predetermined size in the direction toward which the posture SSI is directed within the left partial region HIBR3.
  • the irradiation range SH3 is wider than the irradiation range SH2.
  • the control unit SE adjusts the size of the irradiation range SH irradiated by the irradiation lamp SY so that the irradiation range SH1 ⁇ the irradiation range SH2 ⁇ the irradiation range SH3. It controls the irradiation operation of the irradiation lamp SY.
  • the driver US can be seen within the irradiation range SH2 (shown in FIG. 6B). It is possible to increase the possibility that the part where the
  • Embodiment 4 A light distribution control device according to Embodiment 4 will be described.
  • the light distribution control device HSD of the fourth embodiment basically has the same functions as the light distribution control device HSD of the first embodiment (shown in FIG. 1).
  • the light distribution control device HSD of the fourth embodiment Compared to the light distribution control device HSD of the first embodiment, the light distribution control device HSD of the fourth embodiment accumulates the time or the number of times the driver US looks at the partial region BR, and the result of the accumulation is Accordingly, a partial area is specified and additionally illuminated by the illumination lamp SY.
  • the light distribution control device HSD of the fourth embodiment has the same hardware configuration as the hardware of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 7 shows an example of detection conditions in the light distribution control device HSD of the fourth embodiment.
  • the detection unit KE (illustrated in FIG. 1), as shown in FIG. If so, the partial region BR to which the “line of sight SSN” faces for the cumulative time threshold value RJth “1 second” or more within the unit time TJ “3 seconds” is detected as the partial region BR that the driver US is looking at. .
  • the detection unit KE detects that the "face direction KMK" reaches the cumulative number threshold RKth " The partial area BR that is facing 3 times or more is detected as the partial area BR that the driver US is looking at.
  • the cumulative time threshold RJth corresponds to a "predetermined cumulative time threshold”
  • the cumulative number threshold RKth corresponds to a "predetermined cumulative number threshold”.
  • FIG. 8 shows the operation (part 1) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 9 shows the operation (part 2) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 10 shows the operation (part 3) of the light distribution control device HSD of the fourth embodiment.
  • FIG. 11 shows the operation (part 4) of the light distribution control device HSD of the fourth embodiment.
  • the partial area BR front partial area SYBR3 to right partial area MIBR3 viewed by the driver US is based on the posture SSI of the driver US. is assumed to be detected.
  • the control unit SE receives from the detection unit KE (shown in FIG. 1) that the posture SSI of the driver US is being detected, and controls the vehicle speed (shown in FIG. 8) as shown in FIG. 7.) within a unit time TJ (also shown in FIG. 7.), the posture SSI of the driver US changes from the front partial region SYBR3 to the lower partial region SIBR3 (shown in FIG. 2C.). The time spent viewing each of the partial regions BR is measured, and more precisely, the accumulated viewing time is calculated.
  • FIG. 8B second graph from the top
  • FIG. 8B second graph from the top
  • FIG. 9(C) the third graph from the top
  • control unit SE receives from detection unit KE that posture SSI of driver US is being detected, and as shown in FIG. During the unit time TJ (shown in FIG. 7), the posture SSI of the driver US was looking at each of the five partial regions BR from the front partial region SYBR3 to the lower partial region SIBR3 (shown in FIG. 2C). The number of times (the number of "facts seen” in FIG. 10) is counted, and more precisely, the cumulative number of times of viewing is calculated.
  • the irradiation lamp SY is made to irradiate the upper partial area UEBR3.
  • the control unit SE switches the irradiation of the upper region UEBR3 by the irradiation lamp SY from off to 100% lighting at the same time as the time t1, as shown in FIG. 11B (second graph).
  • FIG. 11(C) the third graph
  • the lighting is gradually increased from off to 100% lighting.
  • the control unit SE controls the time during which the driver US looks at the partial area BR (the left partial area HIBR3 and the upper partial area UEBR3 described above).
  • the partial area BR (the left partial area HIBR3, the upper partial area UEBR3) is illuminated. SY is irradiated. This makes it possible to avoid unnecessary illumination of the partial area BR that is not necessary for the driving due to the so-called "flickering" of the driver US while driving the own vehicle JS. .
  • Embodiment 5 A light distribution control device according to Embodiment 5 will be described.
  • the light distribution control device HSD of the fifth embodiment basically has the same functions as the light distribution control device HSD of the first embodiment (shown in FIG. 1).
  • the light distribution control device HSD of the fifth embodiment is based on the light distribution control device HSD of the fourth embodiment, and the relative angle between the own vehicle JS and the obstacle SB (described later with reference to FIG. 12). increases over time, the time or number of times the driver US has looked at the partial region BR is accumulated, as in the fourth embodiment.
  • the obstacle SB corresponds to the "object”.
  • the light distribution control device HSD of the fifth embodiment has the same hardware configuration as the hardware of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 12 shows the operation (part 1) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 13 shows the operation (part 2) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 14 shows the operation (part 3) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 15 shows the operation (part 4) of the light distribution control device HSD of the fifth embodiment.
  • FIG. 16 shows the operation (part 5) of the light distribution control device HSD of the fifth embodiment.
  • the relative angle .theta It is the angle defined by a second imaginary straight line KC2 parallel to the direction.
  • the relative angle ⁇ when the driver US is looking at the same obstacle SB increases over time in the order of relative angle ⁇ 1 ⁇ relative angle ⁇ 2 ⁇ relative angle ⁇ 3.
  • the gradual increase of the relative angle ⁇ over time means that there is an obstacle SB that the driver US is paying attention to, and that the possibility of the vehicle JS coming into contact with the obstacle SB gradually increases over time.
  • control unit SE When the calculated cumulative time RJ exceeds the cumulative time threshold value RJth as shown in FIG. 13A (upper graph), control unit SE or When the calculated cumulative count RK exceeds the cumulative count threshold RKth, the driver US turns toward the partial region BR (left partial region HIBR3, upper partial region UEBR3) viewed by the driver US, as in the fourth embodiment.
  • the irradiation operation of the irradiation lamp SY is controlled so as to irradiate.
  • control unit SE when the relative angle ⁇ does not increase over time as shown in FIG. 15 (lower graph), control unit SE , the time during which the driver US looked at the partial area BR (left partial area HIBR3) is not accumulated, in other words, the accumulated time RJ is not gradually increased.
  • the fact that the relative angle ⁇ does not increase over time means that a different obstacle SB is glanced at.
  • the cumulative time means the cumulative time of seeing the same obstacle SB. Therefore, when glancing at different obstacles SB, it is meaningless to calculate the accumulated time.
  • control unit SE when the relative angle ⁇ does not increase over time as shown in FIG. 16(B) (lower graph), control unit SE , the number of times the driver US looked at the partial area BR (upper partial area UEBR3) is not accumulated, in other words, the accumulated number RK does not gradually increase.
  • the "x" mark indicates that the number of times the partial region BR was viewed is not accumulated.
  • Embodiment 6 A light distribution control device according to Embodiment 6 will be described.
  • the light distribution control device HSD of the sixth embodiment basically has the same functions as the light distribution control device HSD of the first embodiment (shown in FIG. 1).
  • the light distribution control device HSD of the sixth embodiment like the light distribution control device HSD of the fourth embodiment, accumulates the time or the number of times the driver US looks at the partial area BR. , the irradiation lamp SY is extinguished according to the result of the accumulation, as compared with the light distribution control device HSD of the fourth embodiment.
  • the light distribution control device HSD of the sixth embodiment has the same hardware configuration as the hardware of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 17 shows the operation (part 1) of the light distribution control device HSD of the sixth embodiment.
  • FIG. 18 shows the operation (part 2) of the light distribution control device HSD of the sixth embodiment.
  • the driver US has Suppose we want to detect an unseen sub-region BR.
  • the control unit SE receives from the detection unit KE (shown in FIG. 1) that the posture SSI of the driver US is being detected. Graph), the posture SSI of the driver US changes within a unit time TJ (shown in FIG. 7) specified from the vehicle speed (shown in FIG. 8(B) (the second graph from the top) and FIG. 9(A) (the first graph from the top)) is calculated.
  • the control unit SE controls unit time At time t2 after TJ, the accumulated time RJ during which the posture SSI of the driver US is directed toward the left partial region HIBR3 does not increase from time t1 to time t2.
  • the accumulated time RJ per unit time TJ up to t2 does not exceed a predetermined accumulated time threshold RJth(keep)
  • the additional irradiation directed to the left partial region HIBR3 is stopped, that is, the irradiation lamp SY is turned off. turn off the light.
  • the cumulative time threshold RJth(keep) corresponds to the "second time threshold”.
  • the control unit SE turns off the above-described illumination lamp SY by switching from lighting to 100% off at time t2, or As shown in 17(C) (the third graph), starting from time t2, the lighting is gradually decreased from lighting to 100% lighting.
  • the control unit SE while receiving from the detection unit KE the fact that the posture SSI of the driver US is being detected, the control unit SE, as shown in FIG. 18A (the first graph from the top), Within a unit time TJ specified from the vehicle speed, the posture SSI of the driver US changes from the upper partial region UEBR3 (fourth graph from the top in FIG. 10 ((D)) of the fourth embodiment) to FIG. ) (also shown in the first graph from the top)) is calculated.
  • control unit SE changes posture SSI of driver US at time t2 after unit time TJ from time t1 (shown in FIG. 11(A) of the fourth embodiment).
  • the accumulated number RK facing the upper partial region UEBR3 has not increased. is not exceeded, the additional irradiation towards the upper partial region UEBR3 is stopped, ie the lamp SY is extinguished.
  • the cumulative count threshold RKth(keep) corresponds to the "second count threshold”.
  • the control unit SE turns off the irradiation lamp SY by switching it from on to off at the same time as time t1, as shown in FIG. Then, starting from time t2, the lighting is gradually decreased from lighting to 100% lighting.
  • the controller SE counts the time or number of times the driver US looked at the partial area BR (the left partial area HIBR3 and the upper partial area UEBR3).
  • the cumulative time RJ per unit time TJ or the cumulative count RK does not exceed the cumulative time threshold RJth (keep) or the cumulative count threshold RKth (keep)
  • the partial region BR left partial region HIBR3, upper partial region UEBR3 ) is extinguished.
  • the light distribution control device can be used to illuminate the place that the driver wants to see even if the line of sight of the driver cannot be detected.
  • BR partial area DMS driver monitoring system, HIBR1 to HIBR3 left partial area, HSD light distribution control device, HSS light distribution control system, JS own vehicle, JU receiving section, KB storage medium, KC1 first virtual straight line, KC2 second virtual straight line, KE detection unit, KMK face orientation, MIBR1 to MIBR3 right partial area, MM memory, NY input unit, PC processor, PR program, R area, RJ cumulative time, RJth cumulative time threshold, RK cumulative count, RKth cumulative Number of times threshold, SB Obstacle, SE Control part, SH Output part, SH1 to SH3 Irradiation range, SIBR1 to SIBR3 Lower part area, SSI Posture, SSN Line of sight, SY Light, SYBR1 to SYBR3 Front part area, TJ Unit time, UEBR1 ⁇ UEBR3 upper region, US driver, ⁇ 1 to ⁇ 3 relative angle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Un dispositif de commande de lumière (HSD) est équipé : d'une unité de réception permettant de recevoir une ou plusieurs unités d'informations relatives à la ligne de visée (SSN) d'un conducteur (US), d'une orientation de visage (KMK) ou d'une orientation de posture (SSI) ; d'une unité de détection (KE) qui divise la région à l'avant du véhicule en une pluralité de régions sectionnelles (R) comprenant une région sectionnelle frontale (SBRY) positionnée à l'avant dudit véhicule et des régions sectionnelles adjacentes et au-dessus, au-dessous, à gauche et à droite de ladite région sectionnelle frontale, et comprenant une région sectionnelle supérieure (UEBR), une région sectionnelle inférieure (SIBR), une région sectionnelle gauche (HIBR) et une région sectionnelle droite (MIBR), et qui détecte vers quelle région sectionnelle parmi la pluralité de régions sectionnelle le conducteur regarde ; et d'une unité de commande (SE) permettant d'envoyer un signal d'instruction à une lumière (SY) de façon à éclairer la région sectionnelle vers laquelle le conducteur regarde. La région sectionnelle frontale y est configurée de sorte que la taille de la région sectionnelle frontale sur la base d'une orientation de visage ou d'une posture est inférieure à la taille de la région sectionnelle frontale sur la base d'une ligne de visée.
PCT/JP2022/000306 2022-01-07 2022-01-07 Dispositif de commande de lumière, système de commande de lumière et procédé de commande de lumière WO2023132044A1 (fr)

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PCT/JP2022/000306 WO2023132044A1 (fr) 2022-01-07 2022-01-07 Dispositif de commande de lumière, système de commande de lumière et procédé de commande de lumière
JP2023572302A JP7442756B2 (ja) 2022-01-07 2022-01-07 配光制御装置、配光制御システム、及び配光制御方法

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PCT/JP2022/000306 WO2023132044A1 (fr) 2022-01-07 2022-01-07 Dispositif de commande de lumière, système de commande de lumière et procédé de commande de lumière

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009184640A (ja) * 2008-02-08 2009-08-20 Mazda Motor Corp 車両の前照灯装置
JP2013159310A (ja) * 2012-02-08 2013-08-19 Denso Corp ヘッドライト制御装置
US20160068097A1 (en) * 2014-09-04 2016-03-10 GM Global Technology Operations LLC Motor vehicle and method for operating a motor vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009184640A (ja) * 2008-02-08 2009-08-20 Mazda Motor Corp 車両の前照灯装置
JP2013159310A (ja) * 2012-02-08 2013-08-19 Denso Corp ヘッドライト制御装置
US20160068097A1 (en) * 2014-09-04 2016-03-10 GM Global Technology Operations LLC Motor vehicle and method for operating a motor vehicle

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