Device for drawing view area in front of driver

Abstract

A device for drawing a visual field area in front of a driver comprises a base and further comprises a dummy trunk, an eye point support and a detection assembly, the dummy trunk comprises a rotating shaft and a trunk body which is connected to the middle of the rotating shaft and obliquely extends backwards and upwards, the two ends of the rotating shaft are hinged to the base, and the rotating shaft can rotate relative to the base; the trunk body can swing back and forth relative to the base along with the rotating shaft, the eyespot support comprises a bottom support and a sliding rod connected to the bottom support, the bottom end of the bottom support is connected with the rotating shaft, and the detection assembly is installed on the sliding rod and comprises a detection support, a laser module and a laser module position adjusting device. A through hole matched with the sliding rod is formed in the front end of the detection support, the laser module is installed on the upper side of the rear end of the detection support, and the laser module position adjusting device is arranged on the detection support and connected with the laser module. According to the utility model, the original manual surveying and mapping method can be replaced, and the visual field area in front of a driver can be quickly and accurately drawn according to standard requirements.

Description

Technical Field

[0001] This utility model relates to a device for drawing points and lines, and more particularly to a device for drawing the area of ​​the driver's forward field of vision. Background Technology

[0002] A driver's forward field of vision is crucial to their ability to spot and avoid obstacles on the road ahead, playing a vital role in safe driving and pedestrian safety. Defrosting and defogging of the windshield (especially the area in front of the driver's field of vision) are necessary when needed; therefore, accurately mapping the driver's forward field of vision is essential for designing windshield defrosting and defogging systems. The methods for measuring and mapping the driver's forward field of vision are described in "GB11555-2009 Performance and Test Methods for Automotive Windshield Defrosting and Defogging Systems" and "GB11562-2014 Requirements and Measurement Methods for Driver's Forward Field of Vision."

[0003] Currently, measuring the driver's forward field of vision typically involves using a cantilever coordinate measuring machine or a portable coordinate measuring machine, along with a three-dimensional H-point verification device and a data calculation table, to delineate areas A, B, and A' on the windshield in front of the driver. This method is time-consuming in finding suitable measurement points, making it unsuitable for rapid and efficient testing. Furthermore, it requires a high level of experience and skill from the operators, and manual wiring can easily introduce measurement errors. Summary of the Invention

[0004] The purpose of this invention is to address the deficiencies of the existing technology by providing a device for mapping the driver's forward field of vision, which can replace the original manual mapping method and quickly and accurately map the driver's forward field of vision according to standard requirements.

[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a device for mapping the driver's forward field of vision area, including a base, a dummy torso, an eye point bracket, and a detection component. The dummy torso includes a rotating shaft and a torso body connected to the middle of the rotating shaft and extending backward and upward at an angle. The two ends of the rotating shaft are respectively hinged to the base. The rotating shaft can rotate relative to the base, and the torso body can swing back and forth relative to the base along with the rotating shaft. The eye point bracket includes a bottom bracket and a slide rod connected to the bottom bracket. The bottom end of the bottom bracket is connected to the rotating shaft. The detection component is mounted on the slide rod. The detection component includes a detection bracket, a laser module, and a laser module position adjustment device. The front end of the detection bracket is provided with a through hole that can cooperate with the slide rod. The laser module is mounted on the upper rear end of the detection bracket. The laser module position adjustment device is set on the detection bracket and connected to the laser module.

[0006] A further technical solution of this utility model is: the equipment is installed on the test car seat, and the laser emission point of the laser module coincides with the "V" point defined in the GB11562-2014 standard.

[0007] A further technical solution of this utility model is: the bottom support of the eye point bracket includes a horizontal arm and two vertical arms that are respectively connected to the two ends of the horizontal arm and extend downward. The bottom ends of the two vertical arms are respectively hinged to the rotating shaft. The horizontal arm is provided with a connecting hole. The bottom end of the slide rod is installed in the connecting hole of the horizontal arm, and the upper end of the slide rod extends upward in a straight line.

[0008] A further technical solution of this utility model is: one side surface of the slide rod is provided with an anti-rotation plane that can prevent the detection bracket from rotating relative to the slide rod, and the inner wall of the through hole that cooperates with the slide rod is provided with a flat inner wall surface that cooperates with the anti-rotation plane.

[0009] A further technical solution of this utility model is as follows: the detection bracket includes a front connecting block, a rear lower support plate and a rear upper support plate. A through hole connected to the slide rod is provided at the front end of the front connecting block. The side wall of the through hole of the front connecting block is also provided with a fixing screw hole. The fixing bolt can fix the front connecting block to the surface of the slide rod through the fixing screw hole. The front end of the rear lower support plate is connected to the rear end of the front connecting block. The laser module position adjustment device is respectively provided on the rear lower support plate and the rear upper support plate. The laser module is installed on the rear upper support plate.

[0010] A further technical solution of this utility model is as follows: The laser module position adjustment device includes a laser module left-right adjustment component and a laser module up-down adjustment component. The laser module left-right adjustment component includes a low-speed stepper motor and a left-right rotating disk. The low-speed stepper motor is installed on the upper surface of the rear lower support plate. The output end of the low-speed stepper motor is connected to the left-right rotating disk through a transmission device. The left-right rotating disk is then connected to the bottom surface of the rear upper support plate. The laser module up-down adjustment component includes a low-speed stepper motor and an up-down rotating disk. The low-speed stepper motor is installed on the upper surface of one side of the rear upper support plate. The output end of the low-speed stepper motor is connected to the up-down rotating disk through a transmission device. The up-down rotating disk is then connected to the laser module.

[0011] A further technical solution of this utility model is: the laser module position adjustment device also includes an intelligent control system that is connected to the control terminals of low-speed stepper motor one and low-speed stepper motor two respectively.

[0012] A further technical solution of this utility model is: the laser module includes a laser and a laser support frame. One end of the laser support frame is provided with a through groove for positioning the laser, and the laser is positioned in the through groove. The other end of the laser support frame is connected to the upper and lower rotating turntables.

[0013] This utility model provides a device for mapping the driver's forward field of vision area, which has the following advantages: A dummy torso and an eyepoint bracket are connected to the base, and a detection component is connected to the rear of the eyepoint bracket. The device is installed on the car seat, and the laser emission point is adjusted to coincide with the "V" point defined in the GB11562-2014 standard. Then, by controlling the intelligent control system, the laser module moves up, down, left, and right under the drive of the laser module position adjustment device, marking the key points on the car windshield according to the method of GB11562-2014. This allows for the delineation of areas A, B, and A' on the car windshield, enabling the rapid and accurate delineation and measurement of areas A, B, and A' on the driver's forward windshield. It replaces the original manual mapping method, shortens the time significantly, improves the detection quality, reduces personnel input, and saves detection costs.

[0014] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates a device for mapping the driver's forward field of vision. Attached Figure Description

[0015] Figure 1 This is a right view of a device for drawing the driver's forward field of vision area according to this utility model;

[0016] Figure 2 This is a rear view of a device for drawing the driver's forward field of vision area according to this utility model;

[0017] Figure 3 This utility model provides a three-dimensional view of the driver's forward field of vision area;

[0018] Figure 4 yes Figure 3 Another view from the opposite direction;

[0019] Figure 5 This is an enlarged view of the detection component of a device for mapping the driver's forward field of vision according to this utility model;

[0020] Explanation of reference numerals: 1-rotating shaft, 2-dummy torso, 3-eye point bracket, 4-detection component, 5-vertical arm, 6-horizontal arm, 7-slide rod, 8-anti-rotation plane, 9-through hole, 10-laser module left and right adjustment component, 11-rear upper support plate, 12-laser module, 13-branch, 14-laser module up and down adjustment component, 15-rear lower support plate, 16-front connecting block, 17-torso body, 18-connecting hole, 19-left and right rotating turntable, 20-low-speed stepper motor one, 21-laser, 22-laser support frame, 23-low-speed stepper motor two, 24-up and down rotating turntable, 25-flat inner wall surface, 26-fixing screw hole. Detailed Implementation

[0021] like Figures 1 to 5As shown, this utility model discloses a device for mapping the driver's forward field of vision area, including a base, a dummy torso 2, an eye point bracket 3, and a detection component 4. The base is an existing mechanism and is not shown in the diagram.

[0022] like Figures 1 to 4 As shown, the dummy torso 2 includes a pivot 1 and a torso body 17 connected to the middle of the pivot 1 and extending backward and upward at an angle. The two ends of the pivot 1 are hinged to the base, allowing the pivot 1 to rotate relative to the base. The torso body 17 can swing back and forth relative to the base along with the pivot 1. A branch 13, which can be connected to a counterweight (not shown in the figure), is attached to the torso body 17 of the dummy torso 2. In use, the base of the device is installed on the seat cushion of a car seat, and the dummy torso 2 simulates the human torso against the seat back. The intersection of the torso body 17 of the dummy torso 2 and the pivot 1 is the location of the seating reference point (R point).

[0023] like Figures 1 to 4 As shown, the eye point bracket 3 includes a bottom bracket and a slide rod 7 connected to the bottom bracket. The bottom end of the bottom bracket is connected to the rotating shaft 1, and the detection component 4 is mounted on the slide rod 7. The bottom bracket of the eye point bracket 3 includes a horizontal arm 6 and two vertical arms 5 connected to both ends of the horizontal arm 6 and extending downwards. The bottom ends of the two vertical arms 5 are hinged to the rotating shaft 1 and can rotate relative to the rotating shaft 1. The horizontal arm 6 is provided with a connecting hole 18. The center line of the connecting hole 18 is offset to the left by a distance L relative to the center line of the horizontal arm 6. The center line of the horizontal arm 6 and the riding reference point (R point) are in the same vertical plane, and the center line of the horizontal arm 6 is located directly in front of the riding reference point (R point). The bottom end of the slide rod 7 is installed in the connecting hole 18 of the horizontal arm 6, and the upper end of the slide rod 7 extends upwards in a straight line. The distance to the left of the slide rod 7 installed in the connecting hole 18 relative to the riding reference point (R point) is L. Fixing devices (not shown in the figure) can be set at the bottom end of the horizontal arm 6 and the inner side of the two vertical arms 5 to fix the slide rod 7. One side surface of the slide rod 7 is provided with an anti-rotation plane 8 to prevent the detection bracket from rotating relative to the slide rod 7. The inner wall of the through hole 9 that mates with the slide rod 7 is provided with a flat inner wall surface 25 that mates with the anti-rotation plane 8. The detection bracket will not rotate relative to the slide rod 7 when it is fitted onto the slide rod 7. In use, the base of the device is installed on the car seat cushion. By rotating the eye point bracket 3, the slide rod 7 can be positioned vertically, that is, in a position parallel to the Z-axis.

[0024] like Figures 1 to 5As shown, the detection component 4 includes a detection bracket, a laser module 12, and a laser module position adjustment device. The front end of the detection bracket has a through hole 9 that can cooperate with the slide rod 7. The laser module 12 is installed on the upper rear end of the detection bracket. The laser module position adjustment device is set on the detection bracket and connected to the laser module 12. The detection bracket includes a front connecting block 16, a rear lower support plate 15, and a rear upper support plate 11. The through hole 9 connected to the slide rod 7 is located at the front end of the front connecting block 16. The side wall of the through hole 9 of the front connecting block 16 is also provided with a fixing screw hole 26. The fixing bolt can fix the front connecting block 16 to the surface of the slide rod 7 through the fixing screw hole 26. The front end of the rear lower support plate 15 is fixedly connected to the rear end of the front connecting block 16. The rear end of the rear lower support plate 15 is offset to the right by a distance L relative to the center line of the through hole 9 of the front connecting block 16. The rear upper support plate 11 is connected above the rear lower support plate 15. The laser module 12 is mounted on the rear upper support plate 11. Since the rightward offset distance of the rear end of the rear lower support plate 15 is equal to the leftward offset distance of the slide bar 7, the laser module 12 is mounted on the rear upper support plate 11 and located directly behind the seating reference point (R point). This design also prevents the laser emitted by the laser module 12 from being blocked by the slide bar 7.

[0025] like Figures 3 to 5As shown, the laser module position adjustment devices are respectively installed on the lower rear support plate 15 and the upper rear support plate 11. In this embodiment, the laser module position adjustment device includes a laser module left-right adjustment component 10 and a laser module up-down adjustment component 14. The laser module left-right adjustment component 10 includes a low-speed stepper motor 20 and a left-right rotating disk 19. The low-speed stepper motor 20 is installed on the upper surface of the lower rear support plate 15. The output end of the low-speed stepper motor 20 is connected to the left-right rotating disk 19 through a transmission device. The left-right rotating disk 19 is then connected to the bottom surface of the upper rear support plate 11. The operation of the low-speed stepper motor 20 can drive the left-right rotating disk 19 to rotate to the left or right, thereby driving the laser module 12 on the upper rear support plate 11 to shift left and right. The laser module vertical adjustment assembly 14 includes a second low-speed stepper motor 23 and a vertical rotating disk 24. The second low-speed stepper motor 23 is mounted on the upper surface of one side of the rear upper support plate 11. The output end of the second low-speed stepper motor 23 is connected to the vertical rotating disk 24 through a transmission device, and the vertical rotating disk 24 is in turn connected to the laser module 12. The operation of the second low-speed stepper motor 23 can drive the vertical rotating disk 24 to rotate up or down, thereby driving the laser module 12 on the rear upper support plate 11 to shift vertically. The laser module position adjustment device also includes an intelligent control system (not shown in the figure) connected to the control ends of the first low-speed stepper motor 20 and the second low-speed stepper motor 23 respectively. The intelligent control system is an existing PLC control system, and its structure will not be described in detail. Through the intelligent control system, control commands can be input, and the first low-speed stepper motor 20 and the second low-speed stepper motor 23 work precisely according to the control commands. The laser module 12 includes a laser 21 and a laser support frame 22. The laser 21 is an existing product capable of emitting laser light. One end of the laser support frame 22 is provided with a slot for positioning the laser 21. The laser 21 is positioned in the slot and fixed by a pressure plate on the outside. The other end of the laser support frame 22 is connected to the upper and lower rotating disks 24. When the upper and lower rotating disks 24 deflect up and down, the laser module 12 can deflect up and down together with the upper and lower rotating disks 24.

[0026] When the equipment is installed on the test car seat (not shown in the figure), the laser emission point of the laser module 12 coincides with the "V" point defined in the GB11562-2014 standard. That is, the laser emission point is the V point in the longitudinal vertical plane of the center line of the front outer seat position. The GB11562-2014 standard defines the meaning and determination method of the "V" point. The laser emission point can be made to be on the V point because when designing the test bracket, the distance of the slide bar 7 to the left and forward is considered. Based on its position and size relative to the seat reference point (R point), and the position and size of the V point relative to the seat reference point (R point), the laser emission point of the laser module 12 is offset to the "V" point specified in the GB11562-2014 standard through the test bracket. The "V" and "R" points in this patent have the same meaning as those described in "GB11555-2009 Performance and Test Methods of Automotive Windshield Defrosting and Defogging Systems" and "GB11562-2014 Requirements and Measurement Methods for Forward Visibility of Automotive Drivers". Those skilled in the art will understand this, and it will not be described in detail here.

[0027] When using this device to map the driver's forward field of vision, the device's base is installed on the car seat cushion. At this time, the intersection of the dummy torso 2 and the base (i.e., the intersection of the torso body 17 and the pivot 1) is the location of the seating reference point (R point). The laser emission point of the laser module 12 coincides with the "V" point specified in GB11562-2014 standard. Adjust the slide rod 7 to a vertical position through the pivot 1 and fix the slide rod 7 so that the dummy torso 2 simulates the human torso against the seat back. Connect the counterweight block to the branch 13 according to the human body weight. The front connecting block 16 of the detection component 4 is manually adjusted to move relative to the slide bar 7 in the Z direction. According to the Z-axis value of point V in standard GB11562-2014, the detection component 4 is fixed in the corresponding position of the slide bar 7. After fixing the detection component 4, the key points on the car windshield are marked by laser illumination according to the method of GB 11562-2014. The control command is input to the low-speed stepper motor 1 20 and low-speed stepper motor 23 through the intelligent control system. The low-speed stepper motor 1 20 and low-speed stepper motor 23 drive the laser module 12 to move. The laser module 12 illuminates each key point with laser. The staff marks the key points on the car windshield. Finally, the A, B and A' areas are delineated on the car windshield, realizing the rapid and accurate delineation and measurement of the A, B and A' areas of the windshield in front of the driver.

[0028] The above embodiments are merely preferred embodiments of this utility model. The structure of this utility model is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for mapping the area of ​​a driver's forward field of vision, comprising a base, characterized in that, It also includes a dummy torso (2), an eye point support (3), and a detection component (4). The dummy torso (2) includes a rotating shaft (1) and a torso body (17) connected to the middle of the rotating shaft (1) and extending backward and upward. The two ends of the rotating shaft (1) are respectively hinged to the base. The rotating shaft (1) can rotate relative to the base. The torso body (17) can swing back and forth relative to the base along with the rotating shaft (1). The eye point support (3) includes a bottom support and a slide rod (7) connected to the bottom support. The bottom end of the bottom support is connected to the rotating shaft (1). The detection component (4) is installed on the slide rod (7). The detection component (4) includes a detection bracket, a laser module (12), and a laser module position adjustment device. The front end of the detection bracket is provided with a through hole (9) that can cooperate with the slide rod (7). The laser module (12) is installed on the upper side of the rear end of the detection bracket. The laser module position adjustment device is set on the detection bracket and connected to the laser module (12).

2. The device for mapping the driver's forward field of vision area as described in claim 1, characterized in that, The device was installed on the test car seat, and the laser emission point of the laser module (12) coincided with the "V" point defined by the GB11562-2014 standard.

3. The device for mapping the driver's forward field of vision area as described in claim 1, characterized in that, The bottom support of the eye point bracket (3) includes a horizontal arm (6) and two vertical arms (5) that are respectively connected to the two ends of the horizontal arm (6) and extend downward. The bottom ends of the two vertical arms (5) are respectively hinged to the rotating shaft (1). The horizontal arm (6) is provided with a connecting hole (18). The bottom end of the slide rod (7) is installed in the connecting hole (18) of the horizontal arm (6), and the upper end of the slide rod (7) extends straight upward.

4. The device for mapping the driver's forward field of vision area as described in claim 3, characterized in that, The slide bar (7) has an anti-rotation plane (8) on one side surface to prevent the detection bracket from rotating relative to the slide bar (7), and the inner wall of the through hole (9) that cooperates with the slide bar (7) has a flat inner wall surface (25) that cooperates with the anti-rotation plane (8).

5. The device for mapping the driver's forward field of vision area as described in claim 1, characterized in that, The detection bracket includes a front connecting block (16), a rear lower support plate (15), and a rear upper support plate (11). A through hole (9) connected to the slide rod (7) is provided at the front end of the front connecting block (16). A fixing screw hole (26) is also provided on the side wall of the through hole (9) of the front connecting block (16). The fixing bolt can fix the front connecting block (16) to the surface of the slide rod (7) through the fixing screw hole (26). The front end of the rear lower support plate (15) is connected to the rear end of the front connecting block (16). The laser module position adjustment device is respectively provided on the rear lower support plate (15) and the rear upper support plate (11). The laser module (12) is installed on the rear upper support plate (11).

6. The device for mapping the driver's forward field of vision area as described in claim 5, characterized in that, The laser module position adjustment device includes a laser module left and right adjustment component (10) and a laser module up and down adjustment component (14). The laser module left and right adjustment component (10) includes a low-speed stepper motor (20) and a left and right rotating disk (19). The low-speed stepper motor (20) is installed on the upper surface of the rear lower support plate (15). The output end of the low-speed stepper motor (20) is connected to the left and right rotating disk (19) through a transmission device. The left and right rotating disk (19) is then connected to the bottom surface of the rear upper support plate (11). The laser module up and down adjustment component (14) includes a low-speed stepper motor (23) and an up and down rotating disk (24). The low-speed stepper motor (23) is installed on the upper surface of one side of the rear upper support plate (11). The output end of the low-speed stepper motor (23) is connected to the up and down rotating disk (24) through a transmission device. The up and down rotating disk (24) is then connected to the laser module (12).

7. The device for mapping the driver's forward field of vision area as described in claim 6, characterized in that, The laser module position adjustment device also includes an intelligent control system that is connected to the control terminals of low-speed stepper motor one (20) and low-speed stepper motor two (23) respectively.

8. The device for mapping the driver's forward field of vision area as described in claim 6, characterized in that, The laser module (12) includes a laser (21) and a laser support frame (22). One end of the laser support frame (22) is provided with a slot for positioning the laser (21), and the laser (21) is positioned in the slot. The other end of the laser support frame (22) is connected to the upper and lower rotating turntables (24).

Images