A three-dimensional location measurement sensor including first and second rotation plates to rotate about a fixed axial member independently of each other, a camera, formed inside the fixed axial member in the middle of the second rotation plate, a mirror, to be supported by a mirror supporting uni
A three-dimensional location measurement sensor including first and second rotation plates to rotate about a fixed axial member independently of each other, a camera, formed inside the fixed axial member in the middle of the second rotation plate, a mirror, to be supported by a mirror supporting unit so as to be disposed over the camera, the mirror supporting unit being fixed to the first rotation plate, at least one light source, to be supported by a light source supporting unit so as to be disposed between the mirror and the second rotation plate, the light source supporting unit being fixed to the first rotation plate, a mark, to be supported by a mark supporting unit so as to be disposed between the mirror and the second rotation plate, the mark supporting unit being formed on the second rotation plate, and a gear unit, which is formed at an outer circumference of the second rotation plate and adjusts an inclination angle of the mirror. Accordingly, relatively easily determining the location of a target object by using the three-dimensional location measurement sensor is possible.
대표청구항▼
What is claimed is: 1. A three-dimensional location measurement sensor comprising: first and second rotation plates to rotate about a fixed axial member independently of each other; a camera, formed inside the fixed axial member in the middle of the second rotation plate; a mirror, supported by a m
What is claimed is: 1. A three-dimensional location measurement sensor comprising: first and second rotation plates to rotate about a fixed axial member independently of each other; a camera, formed inside the fixed axial member in the middle of the second rotation plate; a mirror, supported by a mirror supporting unit so as to be disposed over the camera, the mirror supporting unit being fixed to the first rotation plate; at least one light source, supported by a light source supporting unit so as to be disposed between the mirror and the second rotation plate, the light source supporting unit being fixed to the first rotation plate; a mark, supported by a mark supporting unit so as to be disposed between the mirror and the second rotation plate, the mark supporting unit being formed on the second rotation plate; and a gear unit, formed at an outer circumference of the second rotation plate, to adjust an inclination angle of the mirror. 2. The three-dimensional location measurement sensor of claim 1, wherein the first and second rotation plates are connected to the fixed axial member by bearing gears so that the first and second rotation plates are able to rotate about the fixed axial member independently of each other. 3. The three-dimensional location measurement sensor of claim 2, wherein the first and second rotation plates are respectively coupled to driving force transfer units of first and second motors and are driven to rotate by the first and second motors. 4. The three-dimensional location measurement sensor of claim 3, further comprising: a first fixing plate, formed at one end of the fixed axial member, the first motor being formed on the first fixing plate; and a second fixing plate, formed between the first and second rotation plates, the second motor being formed on the second fixing plate. 5. The three-dimensional location measurement sensor of claim 2, wherein spindle motors, including coils, a magnet, and bearings, are respectively formed at connections between the fixed axial member and the first rotation plate and between the fixed axial member and the second rotation plate, drive the first and second rotation plates to rotate about the fixed axial member independently of each other. 6. The three-dimensional location measurement sensor of claim 1, wherein the mirror supporting unit comprises: two mirror supporters to be fixably formed at opposite sides of the top surface of the first rotation plate and to vertically extend from the top surface of the first rotation plate; a mirror rotation axis to be rotatably coupled to the two mirror supporters by bearings and to horizontally support the mirror; and a mirror rotation gear to be coupled to one end of the mirror rotation axis to engage with the gear unit so as to rotate the mirror rotation axis when the gear unit rotates and to change an inclination angle of the mirror. 7. The three-dimensional location measurement sensor of claim 1, wherein the light source supporting unit comprises: a vertical portion, fixably formed at one side of the top surface of the first rotation plate, so as to vertically extends from the top surface of the first rotation plate; and a horizontal portion, to horizontally extend from one end of the vertical portion into a space between the mirror and the second rotation plate. 8. The three-dimensional location measurement sensor of claim 7, wherein the at least one light source is formed on the light supporting unit between the mirror and the second rotation plate. 9. The three-dimensional location measurement sensor of claim 1, wherein the mark supporting unit comprises: a vertical portion fixably formed at one side of the top surface of the first rotation plate and to vertically extend from the top surface of the second rotation plate; and a horizontal portion to horizontally extend from one end of the vertical portion into a space between the mirror and the second rotation plate. 10. The three-dimensional location measurement sensor of claim 9, wherein the mark is formed at an end of the horizontal portion of the mark supporting unit. 11. The three-dimensional location measurement sensor of claim 1, wherein the gear unit is a crown gear that is formed along part of the outer circumference of the second rotation plate. 12. A three-dimensional location measurement sensor, including a camera, comprising: first and second rotation plates to independently rotate about a fixed axial member in which the camera is held; a mirror, supported by a mirror supporting unit so as to be disposed over the camera, the mirror supporting unit to rotate with the first rotation plate; at least one light source, supported by a light source supporting unit so as to be disposed between the mirror and the second rotation plate, the light source supporting unit to rotate with the first rotation plate; a mark, supported by a mark supporting unit so as to be disposed between the mirror and the second rotation plate, the mark supporting unit being formed on the second rotation plate; and a gear unit, which is formed at an outer circumference of the second rotation plate and adjusts an inclination angle of the mirror. 13. The three-dimensional location measurement sensor according to claim 12, further comprising bearing gears to allow the first and second rotation plates to connect to and independently rotate about the axial member. 14. The three-dimensional location measurement sensor according to claim 13, further comprising: first and second motors to generate a driving force to be applied to the first and second rotation plates, respectively; and driving force transfer units to couple the first and second motors to the first and second rotation plates, respectively, so as to allow the generated driving force to be applied to the first and second rotation plates. 15. The three-dimensional location measurement sensor according to claim 14, wherein the fixed axial member has a lower end and an upper end, the camera being disposed in the upper end and the lower end being below the upper end. 16. The three-dimensional location measurement sensor according to claim 15, further comprising a first fixed plate at the lower end of the fixed axial member, wherein the first motor is fixed to the first fixed plate. 17. The three-dimensional location measurement sensor according to claim 16, further comprising a second fixed plate between the first and second rotation plates, wherein the second motor is fixed to the second fixing plate. 18. The three-dimensional location measurement sensor according to claim 13, further comprising spindle motors to respectively drive the first and second rotation plates to rotate about the fixed axial member independently of each other. 19. The three-dimensional location measurement sensor according to claim 18, wherein the spindle motors each comprise coils, a magnet, and bearings and are formed at connections between the fixed axial member and the first and second rotation plates. 20. The three-dimensional location measurement sensor according to claim 12, wherein the mirror supporting unit comprises two mirror supporters, to be fixably formed at opposite sides of the top surface of the first rotation plate, so as to vertically extend from the top surface of the first rotation plate. 21. The three-dimensional location measurement sensor according to claim 20, wherein the mirror supporting unit further comprises a mirror rotation axis rotatably coupled to the two mirror supporters by bearings so as to and horizontally support the mirror. 22. The three-dimensional location measurement sensor according to claim 21, wherein the mirror supporting unit further comprises a mirror rotation gear, coupled to one end of the mirror rotation axis to engage with the gear unit so as to rotate the mirror rotation axis when the gear unit rotates and to change an inclination angle of the mirror. 23. The three-dimensional location measurement sensor according to claim 12, wherein the light source supporting unit comprises: a vertical portion fixably formed at one side of the top surface of the first rotation plate so as to vertically extends from the top surface of the first rotation plate; and a horizontal portion to horizontally extend from one end of the vertical portion into a space between the mirror and the second rotation plate. 24. The three-dimensional location measurement sensor according to claim 23, wherein the at least one light source is formed on the light supporting unit between the mirror and the second rotation plate. 25. The three-dimensional location measurement sensor according to claim 12, wherein the mark supporting unit comprises: a vertical portion to be fixably formed at one side of the top surface of the first rotation plate and to vertically extend from the top surface of the second rotation plate; and a horizontal portion to horizontally extend from one end of the vertical portion into a space between the mirror and the second rotation plate. 26. The three-dimensional location measurement sensor according to claim 25, wherein the mark is formed at an end of the horizontal portion of the mark supporting unit. 27. The three-dimensional location measurement sensor according to claim 12, wherein the gear unit is a crown gear that is formed along part of the outer circumference of the second rotation plate. 28. A three-dimensional location measurement sensor, including a camera, comprising: first and second rotation plates to independently rotate about a fixed axial member in which the camera is held; a mirror disposed over the camera to rotate with the first rotation plate; at least one light source between the mirror and the second rotation plate, the light source supporting unit to rotate with the first rotation plate; a mark, between the mirror and the second rotation plate, to be integrally coupled to the second rotation plate and to serve as a reference point to determine an inclination angle of the mirror; and a gear unit formed integrally with the second rotation plate to adjust the inclination angle of the mirror. 29. A three-dimensional location measurement sensor, which can control its azimuth and inclination angles independently of each other, including a camera, comprising: first and second rotation plates to independently rotate about a fixed axial member in which the camera is held; a mirror disposed over the camera to rotate with the first rotation plate; at least one light source between the mirror and the second rotation plate, the light source supporting unit to rotate with the first rotation plate; a mark, between the mirror and the second rotation plate, integrally coupled to the second rotation plate and to serve as a reference point to determine an inclination angle of the mirror; and a gear unit formed integrally with the second rotation plate to adjust the inclination angle of the mirror. 30. A three-dimensional location measurement sensor, including a camera, to be applied to a mobile device so that the azimuth and inclination angles of the mobile device are controlled independently so that the device may relatively easily detect coordinates of a target, the three-dimensional location measurement sensor comprising: first and second rotation plates to independently rotate about a fixed axial member in which the camera is held, the first rotation plate changing the azimuth angle of the device; a mirror disposed over the camera to rotate with the first rotation plate; at least one light source between the mirror and the second rotation plate, the light source supporting unit to rotate with the first rotation plate; a mark, between the mirror and the second rotation plate, integrally coupled to the second rotation plate and to serve as a reference point to determine an inclination angle of the mirror; and a gear unit formed integrally with the second rotation plate to adjust the inclination angle of the mirror without further affecting the azimuth angle of the device. 31. A method of determining a location of a target in three-dimensions, comprising: rotating a camera from an initial attitude to face a target in any direction in a horizontal plane; adjusting an inclination angle of a mirror from an initial inclination to face the target in any direction in a vertical plane; emitting light from positions near the camera toward the mirror so that the light is reflected toward the target and back to the camera via the mirror; recording the image of the target; and determining the location of the target based on the amount of rotation of the camera and the amount of the adjustment of the inclination of the mirror when the camera records the reflection of the target.
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