INSPECTING APPARATUS OF LANE DEPARTURE WARNING SYSTEM FOR VEHICLE

• US 20150145999A1
• Filed: 11/21/2014
• Published: 05/28/2015
• Est. Priority Date: 11/22/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: KIM, Sinkuk
• Granted Patent: US 9,511,712 B2
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 2300/402 Image calibration
• CPC Class Codes: B60R 2300/804 for lane monitoring
• CPC Class Codes: G01M 17/00 Testing of vehicles testing fluid tightness G01M3/00; testing elastic properties of bodies or chassis, e.g. torsion-testing, G01M5/00; testing alignment of vehicle headlight devices G01M11/06; testing of engines G01M15/00
• CPC Class Codes: H04N 17/002 for television cameras

Abstract

An inspection apparatus of a lane departure warning system for a vehicle may include an LDWS calibrate unit displaying a calibration target for calibrating a camera measurement point of the LDWS, a first moving unit mounted to a frame unit for moving the LDWS calibrate unit to a predetermined position, an LDWS inspection unit displaying lane images for inspecting normal operation of the LDWS, and a second moving unit mounted to the frame unit for moving the LDWS inspection unit to a predetermined position.

Claims

1. An inspection apparatus of a lane departure warning system (LDWS) for a vehicle comprising:

an LDWS calibrate unit displaying a calibration target for calibrating a camera measurement point of the LDWS;

a first moving unit mounted to a frame unit for moving the LDWS calibrate unit to a predetermined position;

an LDWS inspection unit displaying lane images for inspecting normal operation of the LDWS; and

a second moving unit mounted to the frame unit for moving the LDWS inspection unit to a predetermined position.

2. The inspection apparatus of claim 1,

wherein the LDWS calibrate unit comprises at least one first LCD monitor which displays the calibration target and is capable of adjusting an image position and an image size of the calibration target, and

wherein the frame unit is a base frame supporting constituent elements and includes bracket and supporting blocks.

3. The inspection apparatus of claim 2, wherein the first moving unit comprises:

a first moving frame mounted to the frame unit and movable in front/rear directions with respect to the frame unit;

a second moving frame mounted to the first moving frame and movable in up/down directions with respect to the first moving frame; and

a third moving frame of which at least one first LCD monitor is mounted thereto, mounted to the second moving frame and movable with respect to the second moving frame.

4. The inspection apparatus of claim 3, wherein:

the first moving frame is movable with respect to the frame unit by operations of a first servo motor and a first lead screw,

the second moving frame is movable with respect to the first moving frame by operation of at least one up/down cylinder, and

the third moving frame is movable with respect to the second moving frame by operation of at least one left/right cylinder.

5. The inspection apparatus of claim 3, wherein:

the first LCD monitor is mounted to the third moving frame through a mounting bracket, and

a fine adjustment unit is provided to the third moving frame to move the mounting bracket to left/right and up/down directions for adjusting a position of the first LCD monitor.

6. The inspection apparatus of claim 5, wherein:

the fine adjustment unit comprises a mounting bracket movably mounted to the third moving frame to the left/right directions; and

the mounting bracket is movably mounted to the mounting bracket to the up/down directions.

7. The inspection apparatus of claim 6, wherein the fine adjustment unit comprises:

a first moving screw member rotatably mounted to the third moving frame and moving the mounting bracket to the left/right directions through a first manual handle; and

a second moving screw member rotatably mounted to the mounting bracket and moving the mounting bracket to the up/down directions through a second manual handle.

8. The inspection apparatus of claim 2, wherein the at least one first LCD monitor is disposed as a pair, each first LCD monitor of the pair of first LCD monitors is apart from each other, and each first LCD monitor displays the calibration target respectively.

9. The inspection apparatus of claim 2, wherein the at least one first LCD monitor is disposed as a pair, each first LCD monitor of the pair of LCD monitors is apart from each other, each first LCD monitor is movable according to operation of the first moving unit, and one first LCD monitor of the pair of first LCD monitors displays the calibration target.

10. The inspection apparatus of claim 1, wherein the LDWS inspection unit comprises a second LCD monitor which displays a lane as an inspection target and is capable of adjusting an image position and an image size of the lane image.

11. The inspection apparatus of claim 10, wherein the second moving unit comprises:

a forward/rearward moving member mounted to the frame unit and movable in front/rear directions with respect to the frame unit; and

an up/down moving member of which the second LCD monitor is mounted thereto, guided by the forward/rearward moving member through a plurality of guide rods under the forward/rearward moving member, and movable in up/down directions.

12. The inspection apparatus of claim 11, wherein upper portions of the guide rods are connected by a connecting bracket.

13. The inspection apparatus of claim 11, wherein:

the forward/rearward moving member is mounted to the frame unit and movable in the front/rear directions with respect to the frame unit by operations of a second servo motor and a second lead screw, and

the up/down moving member is movably mounted to the forward/rearward moving member to the up/down directions with respect to the forward/rearward moving member by operations of a third servo motor, a third lead screw and a belt.

14. The inspection apparatus of claim 13, wherein:

the third servo motor is fixed to an upper portion of the forward/rearward moving member,

the third lead screw is connected to the third servo motor and rotatably mounted to the upper portion of the forward/rearward moving member;

a pair of moving bodies, each moving body separated from each other, are engaged with the third lead screw, and the moving bodies are movably mounted to the forward/rearward moving member to the front/rear directions with respect to the forward/rearward moving member,

a fixing body is fixed to an upper portion of the forward/rearward moving member corresponding to the moving bodies, and

belt pulleys are rotatably mounted to the moving bodies and the fixing body.

15. The inspection apparatus of claim 14, wherein the moving bodies are movable along a first guide rail mounted to the forward/rearward moving member.

16. The inspection apparatus of claim 14, wherein:

the belt is guided by the belt pulleys mounted to the moving bodies and the fixing body, and

one end of the belt is connected to the fixing body through a first fixing member, and another end of the belt is connected to the up/down moving member through a second fixing member.

17. The inspection apparatus of claim 12, further comprising a stopping unit disposed on the forward/rearward moving member movable to the front/rear directions for selectively limiting movement of the up/down moving member.

18. The inspection apparatus of claim 17, wherein the stopping unit comprises a stopping bar which is movable along a second guide rail disposed on the forward/rearward moving member and selectively limits movement of the connecting bracket.

19. The inspection apparatus of claim 18, wherein the stopping bar is disposed along an upward direction and of which an end selectively limits movement of the connecting bracket.

20. The inspection apparatus of claim 18, further comprising a stopping cylinder disposed on the forward/rearward moving member for selectively moving the stopping bar to the front/rear directions.