CN115813332A - Eye tracker detection device for simulating eyeball movement - Google Patents
Eye tracker detection device for simulating eyeball movement Download PDFInfo
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- CN115813332A CN115813332A CN202310126840.1A CN202310126840A CN115813332A CN 115813332 A CN115813332 A CN 115813332A CN 202310126840 A CN202310126840 A CN 202310126840A CN 115813332 A CN115813332 A CN 115813332A
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Abstract
An eye tracker detection device for simulating eye movement comprises a universal ball shell, an eye ball shell, an inertial angle sensor, an electromagnetic matrix controller, an axial magnet and an electromagnetic matrix; the situation of large volume caused by the complexity of an eyeball motion system is avoided; the eyeball control precision is improved; compared with other eye tracker detection devices simulating eye movement, the eye movement speed is improved, and identification errors caused by eye jump and insufficient movement simulation degree due to low movement speed are avoided.
Description
Technical Field
The invention relates to the technical field of eye tracker detection devices, in particular to an eye tracker detection device for simulating eyeball motion.
Background
The eye tracker is mainly used for detecting human eye movement and gaze direction, can accurately lock human eye gaze points, and is widely applied to the fields of biological simulation, games and military. Due to the fact that the rotation speed of human eyes is high and eye jump exists during fixation, the eye tracker cannot accurately lock the motion of the human eyes, and the detection precision of the eye tracker is seriously affected.
As the eye tracker in China starts later than the American, corresponding standards, detection and equipment are incomplete, and equipment for tracking the movement speed, the fixation point and the eye jump of the human eyes by the eye tracker is almost the same, the eye tracker at the present stage adopts real person test for tracking the movement speed, the fixation point and the eye jump of the human eyes, and the movement speed, the fixation point and the eye jump of the human eyes cannot be accurately controlled and judged due to individual physiological difference and subjective identification difference of people, so that the problem that the precision cannot be accurately measured exists in the research and development of the high-precision eye tracker.
Disclosure of Invention
The invention provides an eye tracker detection device for simulating eyeball movement, which solves the problem that performance indexes of the eye tracker movement speed, the fixation point and the eye jump are verified by human eyes at the present stage, and effectively improves the detection efficiency and the detection precision.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention relates to an eye tracker detection device for simulating eyeball motion, which comprises an eyeball shell, an electromagnetic matrix, an inertial angle sensor, a universal sphere shell, an axial magnet and an electromagnetic matrix controller, wherein the electromagnetic matrix controller is connected with the eyeball shell; spherical eyeball casing arranges universal spherical casing in, universal spherical casing rear center is arranged in to the electromagnetic matrix, the inside center of eyeball casing is arranged in to inertial angle sensor, eyeball casing rear portion center is arranged in to axial magnet, electromagnetic matrix controller is connected with electromagnetic matrix and inertial angle sensor realize that the electromagnetic matrix produces vector magnetic field under the electromagnetic matrix controller command control, drive axial magnet and realize moving on a large scale, at a high speed, the acceleration signal and the attitude signal of inertial angle sensor are gathered in real time to the electromagnetic matrix controller, realize the closed-loop control of axial magnet motion. According to the characteristics that the human eyeball is similar to a sphere, the eyeball shell is designed to be a sphere, the eyeball shell is placed in the universal sphere shell, the eyeball shell is clamped by bearing balls uniformly distributed on the inner wall of the universal sphere shell and rotates around x and z axes with the sphere center as the origin of coordinates, large-range free movement of the upper part, the lower part, the left part and the right part is realized, and different points of three-dimensional space positions can be accessed by matching an electromagnetic matrix through an axial magnet arranged at the rear part of the eyeball shell.
Preferably, the inertial angle sensor is centrally located within the eyeball housing and is fixed relative to the eyeball housing.
Preferably, the eye tracker detection device further comprises a plurality of bearing balls distributed on the inner wall of the universal ball housing. The adoption of bearing ball can effectively fill universal ball casing with space between the eyeball casing makes the eyeball casing is in the free smooth rotation in universal ball casing on a large scale.
Further preferably, the plurality of bearing balls are uniformly distributed on the inner wall of the universal ball shell, and the center position in the eyeball shell does not change relative to the universal shaft shell under any angle.
Preferably, the axial magnet is centrally located in the posterior portion of the eyeball housing and is fixed relative to the eyeball housing.
Further preferably, the magnetic axis of the axial magnet is perpendicular to the central tangent plane of the outer lateral surface of the back part of the eyeball shell.
Still further preferably, the axial magnet magnetic axis direction is opposite to the electromagnetic matrix magnetic axis direction.
Preferably, the geometric center of the electromagnetic matrix is centered behind the ball gimbal housing and fixed relative to the ball gimbal housing.
Further preferably, the geometric center magnetic axis of the electromagnetic matrix is perpendicular to the tangent plane of the rear center position of the universal ball shell.
Preferably, the electromagnetic matrix comprises a plurality of electromagnets and an electromagnetic matrix base, the electromagnets are fixed on the electromagnetic matrix base, the electromagnets are distributed in a regular geometric arrangement, and the electromagnets are electrically connected with the electromagnetic matrix controller.
Further preferably, the plurality of electromagnets are current-direction-coincident.
Preferably, the surface of the electromagnetic matrix facing the universal ball housing is a regular curved surface or a plane.
Preferably, the electromagnetic matrix controller is capable of controlling the current and voltage of any one of the electromagnets.
The electromagnets are enabled to generate variable magnetic fields, and a vector magnetic field is generated by combining the electromagnets at different positions, so that the moving distance and speed of the axial magnet are controlled.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to an eye tracker detection device for simulating eyeball movement, which is characterized in that the eyeball shell rotates around the center of a sphere through the matching of a universal sphere shell and an electromagnetic matrix, a vector superposed magnetic field can be generated through the combination of magnetic fields generated by a plurality of electromagnets in the electromagnetic matrix, an axial magnet can move at a high speed under a vector magnetic field, the moving speed of the axial magnet can be changed through changing the size of the vector magnetic field, the moving direction of the axial magnet can be changed through changing the direction of the vector magnetic field, the moving direction and the moving speed of the eye tracker detection device in a specified range can be accurately controlled through the feedback data of the acceleration and the angle of an inertial angle sensor, the subjective error caused by judging by human eyes and the objective error caused by an individual physiological structure in the research and development process of the eye tracker are effectively solved, and the eye tracker detection device has smaller volume, higher precision and simpler system structure compared with the traditional simulated eyeball control adopting motor control.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a universal ball housing according to the present invention;
FIG. 3 is a schematic diagram of an electromagnetic matrix structure according to the present invention.
In the figure: the device comprises a universal ball shell 1, an eyeball shell 2, an inertial angle sensor 3, an electromagnetic matrix controller 4, an axial magnet 5, an electromagnetic matrix 6, a bearing ball 101, an electromagnet 601 and an electromagnetic matrix base 602.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present, and that the terms "vertical", "horizontal", "front", "rear", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The first embodiment is as follows: the invention provides an eye tracker detection device for simulating eyeball motion, which is realized by the device shown in figure 1.
In fig. 1, an eye tracker detecting apparatus simulating eye movement includes: the device comprises a universal ball shell (1), an eyeball shell (2), an inertial angle sensor (3), an electromagnetic matrix controller (4), an axial magnet (5) and an electromagnetic matrix (6);
the eyeball shell (2) adopts a regular spherical appearance and is installed in the universal ball shell (1), as shown in figure 2, 8 bearing balls (101) are uniformly distributed on the inner wall of the universal ball shell (1), and the eyeball shell (2) is tightly attached to the 8 bearing balls (101) and can rotate freely. The electromagnetic matrix (6) is installed behind the universal ball shell (1), and the geometric center of the surface of the electromagnetic matrix (6) is perpendicular to the central tangent plane behind the universal ball shell (1) and is on the same axis. The inertial angle sensor (3) is fixed at the central position of a geometric sphere in the eyeball shell (2), the axial magnet (5) is fixed at the central position of the outer side surface of the rear part of the eyeball shell (2), the N pole of the axial magnet (5) faces outwards, the electromagnetic matrix controller (4) is connected with the electromagnetic matrix (6) and the inertial angle sensor (3), as shown in figure 3, the electromagnetic matrix (6) is arranged in a 5 x 5 electromagnet (601) array, under the instruction control of the electromagnetic matrix controller (4), the electromagnet (601) generates an S pole magnetic field, the electromagnetic matrix controller (4) collects acceleration signals and attitude signals of the inertial angle sensor (3) in real time, a vector magnetic field required for moving the axial magnet (5) is calculated according to the set rotating speed and direction, the electromagnetic matrix controller (4) controls the current and voltage change of the electromagnet (601) in the corresponding area, so that the electromagnetic matrix (6) generates the vector magnetic field, the axial magnet (5) is driven to move in a large range and at a high speed, and the closed-loop control of the movement of the axial magnet (5) is realized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (8)
1. The utility model provides an eye movement appearance detection device of simulation eye movement which characterized in that: the device comprises a universal ball shell, an eyeball shell, an inertial angle sensor, an electromagnetic matrix controller, an axial magnet and an electromagnetic matrix;
the eyeball casing is arranged in the universal spherical casing, the electromagnetic matrix is arranged in the center of the rear of the universal spherical casing, the inertial angle sensor is arranged in the center of the inner part of the eyeball casing, the axial magnet is arranged in the center of the rear of the eyeball casing, the electromagnetic matrix controller is electrically connected with the electromagnetic matrix and the inertial angle sensor, the acceleration signal and the attitude signal of the inertial angle sensor are acquired by the electromagnetic matrix controller in real time, and the electromagnetic matrix controller sends out an instruction to control the electromagnetic matrix to generate a vector magnetic field to drive the axial magnet to move.
2. The eye tracker measurement apparatus according to claim 1,
the inertial angle sensor is arranged in the center of the inner part of the eyeball shell and is fixed relative to the eyeball shell.
3. The eye tracker measurement apparatus according to claim 1,
the eye tracker detection device further comprises bearing balls, and the bearing balls are distributed on the inner wall of the universal ball shell.
4. The eye tracker measurement apparatus according to claim 1,
the axial magnet is arranged in the center of the back part of the eyeball shell and is fixed relative to the eyeball shell.
5. The eye tracker measurement apparatus according to claim 1,
the geometric center of the electromagnetic matrix is arranged in the center of the rear part of the universal ball shell and is fixed relative to the universal ball shell.
6. The eye tracker measurement apparatus according to claim 1,
the electromagnetic matrix comprises a plurality of electromagnets and an electromagnetic matrix base, the electromagnets are fixed on the electromagnetic matrix base, the electromagnets are distributed in a regular geometric arrangement, and the electromagnets are electrically connected with the electromagnetic matrix controller.
7. The eye tracker measurement apparatus according to claim 1,
the surface of the electromagnetic matrix facing the universal ball shell is a regular curved surface or a plane.
8. The eye tracker measurement apparatus according to claim 6,
the electromagnetic matrix controller can control the current and voltage of any one electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310126840.1A CN115813332A (en) | 2023-02-17 | 2023-02-17 | Eye tracker detection device for simulating eyeball movement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310126840.1A CN115813332A (en) | 2023-02-17 | 2023-02-17 | Eye tracker detection device for simulating eyeball movement |
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| CN115813332A true CN115813332A (en) | 2023-03-21 |
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| CN202310126840.1A Pending CN115813332A (en) | 2023-02-17 | 2023-02-17 | Eye tracker detection device for simulating eyeball movement |
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Citations (9)
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| JPH06189906A (en) * | 1992-12-26 | 1994-07-12 | Nissan Motor Co Ltd | Visual axial direction measuring device |
| US20070121065A1 (en) * | 2005-03-24 | 2007-05-31 | Cox David D | Device and method for tracking eye gaze direction |
| CN101259330A (en) * | 2007-03-07 | 2008-09-10 | 明基电通股份有限公司 | Eyeball component |
| CN103271781A (en) * | 2013-05-06 | 2013-09-04 | 上海交通大学 | Artificial eyeball device capable of simulating eyeball movement and visual signal collecting function |
| CN103566596A (en) * | 2012-07-30 | 2014-02-12 | 周志昌 | Electromagnet-drive robot eye ball |
| CN205772537U (en) * | 2016-06-22 | 2016-12-07 | 广州广日电梯工业有限公司 | A kind of sensor-based intelligent automatic regulated system |
| CN110162068A (en) * | 2019-04-29 | 2019-08-23 | 广东技术师范学院天河学院 | A kind of control method of self-balance robot |
| CN111006660A (en) * | 2019-12-11 | 2020-04-14 | 陕西瑞特测控技术有限公司 | Combined inertial navigation attitude calculation method |
| CN112241200A (en) * | 2019-07-17 | 2021-01-19 | 苹果公司 | Object tracking for head mounted devices |
-
2023
- 2023-02-17 CN CN202310126840.1A patent/CN115813332A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06189906A (en) * | 1992-12-26 | 1994-07-12 | Nissan Motor Co Ltd | Visual axial direction measuring device |
| US20070121065A1 (en) * | 2005-03-24 | 2007-05-31 | Cox David D | Device and method for tracking eye gaze direction |
| CN101259330A (en) * | 2007-03-07 | 2008-09-10 | 明基电通股份有限公司 | Eyeball component |
| CN103566596A (en) * | 2012-07-30 | 2014-02-12 | 周志昌 | Electromagnet-drive robot eye ball |
| CN103271781A (en) * | 2013-05-06 | 2013-09-04 | 上海交通大学 | Artificial eyeball device capable of simulating eyeball movement and visual signal collecting function |
| CN205772537U (en) * | 2016-06-22 | 2016-12-07 | 广州广日电梯工业有限公司 | A kind of sensor-based intelligent automatic regulated system |
| CN110162068A (en) * | 2019-04-29 | 2019-08-23 | 广东技术师范学院天河学院 | A kind of control method of self-balance robot |
| CN112241200A (en) * | 2019-07-17 | 2021-01-19 | 苹果公司 | Object tracking for head mounted devices |
| CN111006660A (en) * | 2019-12-11 | 2020-04-14 | 陕西瑞特测控技术有限公司 | Combined inertial navigation attitude calculation method |
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