Switchable eye tracking and touch projection head mounted glasses for use with an ODP olfactometer
By integrating a switchable eye-tracking and touch projection module into head-mounted glasses, the problem of inaccurate information recording during the sniffing process in existing devices is solved, enabling flexible information input and accurate data recording.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU TOBACCO RES INST OF CNTC
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-24
AI Technical Summary
In the smelling process, existing head-mounted glasses devices cannot match the flexibility of keyboard input in terms of eye-tracking recognition, and cannot effectively combine projection keyboards with head-mounted glasses, resulting in inaccurate records and conclusions.
Design a head-mounted glasses that can switch between eye tracking and touch projection. By installing a movable plane mirror and a transparent plate in the optical cavity, and combining an eye tracking module and a touch projection module, the two command input modes can be switched and combined. The visualization of touch projection commands and eye tracking commands is realized by utilizing the reflection principle of the plane mirror.
This technology improves the accuracy and flexibility of information recording during the olfaction process using head-mounted glasses, reduces subjective errors, and enhances compatibility with the ODP olfactometer.
Smart Images
Figure CN224553595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco detection technology, specifically to a head-mounted glasses that can switch between eye tracking and touch projection for use with an ODP olfactory instrument. Background Technology
[0002] In the field of tobacco research, the olfactory analysis of flavorings and fragrances is a key area of work.
[0003] This work mainly relies on the ODP olfactometer. During the olfactometry process, it is necessary to record and consult relevant information in real time, and also to observe the matching between the data information displayed by the olfactometer and one's own olfactometry experience in order to obtain relatively accurate olfactometry conclusions.
[0004] It is easy to see from the process of carrying out this work that the mouth, hands and eyes need to work together in coordination. Interference between them is inevitable. And when two or three people work together, the subjective feeling of smell is not easy to describe, which can lead to inaccurate records and conclusions.
[0005] The emerging head-mounted glasses devices can organically combine VR technology and motion capture technology. Their built-in computer core can meet the running requirements of general software. By integrating the software required for the sniffer to look up information and display sniffer data, most of the aforementioned problems can be solved.
[0006] However, for recording information, its built-in eye-tracking recognition is more about achieving a simple single-category selection process, which cannot match the flexibility of keyboard input. Although projection keyboards can solve this problem, their organic integration with head-mounted glasses is currently an issue.
[0007] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content
[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a head-mounted glasses system that can switch between eye tracking and touch projection, making it compatible with eye-tracking and touch projection technologies and improving the compatibility between the head-mounted glasses and the ODP sniffer.
[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a head-mounted glasses for use with an ODP snorkel, which can switch between eye tracking and touch projection, including a head-mounted glasses body, a plane mirror, an eye tracking module and a touch projection module; An optical cavity is located between the viewing window and the screen of the head-mounted glasses, and the lower end face of the optical cavity is encapsulated by a transparent plate. The plane mirror is movably installed in the optical cavity of the head-mounted glasses body, the touch projection module is installed at the lower end of the head-mounted glasses body and projects downwards or forwards, and the eye-tracking module is installed on the front side of the optical cavity and is positioned directly opposite the viewing window. The main unit built into the head-mounted glasses is used to control the movement of the plane mirror and to control the switching between touch projection command input mode and eye tracking command input mode. In the touch projection command input mode, the plane mirror moves between the window and the screen and forms a reflector between the window and the transparent plate. The command input panel image projected by the touch projection module enters the window after passing through the transparent plate and the plane mirror, realizing the operation of inputting commands in the touch projection mode. In eye-tracking command input mode, the plane mirror moves away from the view window and the screen, and the view window faces the screen. The eye-tracking module recognizes eye movements and performs input commands.
[0010] Based on the above, the top and front sidewalls of the optical cavity are provided with sliding grooves, and the top and bottom of the plane mirror are respectively slidably engaged with the sliding grooves by sliding members to realize the movement of the plane mirror.
[0011] Based on the above, a touch switch or contact switch is provided in any of the slides, and a matching contact is provided on the slider accordingly. The touch switch or contact switch serves as a switch for switching between touch projection command input mode and eye tracking command input mode.
[0012] Based on the above, the sliding grooves provided on the front sidewall of the optical cavity are located at both ends of the viewing screen, and sliding components are respectively installed at the two lower corners of the plane mirror.
[0013] Based on the above, the sliding member is a ball-head assembly hinged to the plane mirror, and the groove is a narrow-mouthed arc groove that mates with the ball-head assembly.
[0014] Based on the above, the top and front sides of the head-mounted glasses body are respectively provided with driving mechanisms. The two driving mechanisms are respectively connected to the top and bottom of the plane mirror through flexible traction components to drive the displacement of the plane mirror.
[0015] Based on the above, the touch projection module includes a projection component, a camera, and a light sensor, wherein the light sensor is used to sense whether the projection component is activated.
[0016] Based on the above, the thickness of the groove set on the front sidewall of the optical cavity is greater than the thickness of the viewing screen.
[0017] This invention has substantial features and advancements compared to existing technologies. Specifically, it modifies existing VR headsets by installing a touch projection module as a command input unit on the headset and connecting it to the system, thus achieving a combination of command input under eye tracking and command input under touch projection. Simultaneously, to visualize command input under the touch projection module, a movable plane mirror and a transparent plate are added to the original optical cavity. The plane mirror reflects light to transmit the image of the touch projection command input panel to the viewing window, thus visualizing the touch projection command input mode. Removing the plane mirror visualizes the eye-tracking command input mode. Through these structural modifications, the two command input modes are organically combined and switched. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the internal structure of the head-mounted glasses with switchable eye tracking and touch projection used in conjunction with the ODP snorting device in this utility model.
[0019] Figure 2 This is a schematic diagram illustrating the principle of the plane mirror's operation in this utility model.
[0020] Figure 3 This is a schematic diagram of the touch projection module in this utility model.
[0021] Figure 4 This is an axonometric view of the head-mounted glasses in this utility model.
[0022] Figure 5 This is a schematic diagram illustrating the working principle of this utility model in the touch projection command input mode.
[0023] Figure 6 This is a schematic diagram illustrating the working principle of this utility model in eye-tracking command input mode.
[0024] In the diagram: 1. Head-mounted glasses main body; 2. Plane mirror; 3. Eye-tracking module; 4. Touch projection module; 5. Transparent plate; 11. Viewing window; 12. Viewing screen; 13. Optical cavity; 14. Slide; 15. Slider; 16. Drive mechanism; 41. Projection assembly; 42. Camera; 43. Light sensor. Detailed Implementation
[0025] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0026] like Figures 1-6 As shown, a head-mounted glasses device for use with an ODP sniffer that can switch between eye tracking and touch projection includes a head-mounted glasses body 1, a plane mirror 2, an eye tracking module 3, and a touch projection module 4.
[0027] In this embodiment, the head-mounted glasses body 1 refers to the main structure of the VR head-mounted glasses, which includes a control circuit and a control system. The control circuit has an interface for connecting other instruction input hardware modules, such as commonly used USB interfaces, TP-YE-C interfaces, etc., and the protocol is the commonly used serial port protocol.
[0028] In this embodiment, the touch projection module 4 acts as a touch projection mode keyboard input module, including a projection component 41, a camera 42, and a light sensor 43. The light sensor 43 is used to sense whether the projection component 41 is activated. Its function is to project a keyboard image onto the projection object. The camera 42 collects hand movement information and converts it into command input information. This module is commonly used in projection keyboards and has the advantage of saving space. In this embodiment, it is installed as an external component at the lower end of the head-mounted glasses body 1. It can be directly connected through internal wiring, or connected through an external USB interface, or connected through near-field communication means such as Bluetooth.
[0029] The main body of the head-mounted glasses 1 has an optical cavity 13 between the window 11 and the screen 12, and the lower end face of the optical cavity 13 is encapsulated by a transparent plate 5.
[0030] The eye-tracking module 3 is a built-in function of the VR headset. It is positioned below the visible screen 12 and directly opposite the viewing window 11 to capture eye movements. This module is only activated in eye-tracking command mode.
[0031] The plane mirror 2 is movably installed in the optical cavity 13 of the head-mounted glasses body 1, and its position can be adjusted. The host built into the head-mounted glasses body 1 is used to control the movement state of the plane mirror, as well as to control the switching between touch projection command input mode and eye tracking command input mode.
[0032] In terms of the specific movement design, the top and front sidewalls of the optical cavity 13 are provided with sliding grooves 14, and the top and bottom of the plane mirror are respectively slidably engaged with the sliding grooves 14 through the sliding member 15, so as to realize the movement of the plane mirror 2.
[0033] The sliding groove 14, located on the front sidewall of the optical cavity, is situated at both ends of the viewing screen and has an overall thickness greater than that of the viewing screen to prevent interference between the plane mirror 2 and the viewing screen 12 during movement. Sliding members are installed at the two lower corners of the plane mirror 2. In this embodiment, the sliding member 15 is designed as a hinged ball head assembly. The sliding groove 14 is a narrow arc groove that mates with the ball head assembly, which serves both as a guide and prevents the ball head from dislodging.
[0034] In terms of driving method, the top and front sides of the head-mounted glasses body are respectively provided with driving mechanisms. The two driving mechanisms are respectively connected to the top and bottom of the plane mirror through flexible traction components to drive the displacement of the plane mirror.
[0035] In this embodiment, both drive mechanisms can be manually operated using a traction disc and a traction rope. The traction disc is rotatably mounted on the main body of the head-mounted glasses, and the operating knob is located externally. One end of the traction rope is wrapped around the traction disc, and the other end is connected to at least two symmetrical points of the plane mirror. By turning the knob, the traction disc is rotated, which in turn causes the traction rope to be drawn into the traction disc. The two traction discs at both ends operate synchronously, thereby realizing the position adjustment of the plane mirror.
[0036] In another embodiment, a traction disc and traction rope can be provided on one side, and a coil spring and traction rope can be provided on the other side. The self-resetting ability of the coil spring can be used as the traction force to realize the movement and resetting of the plane mirror.
[0037] In more embodiments, an electrically driven linear motion component can be designed as the driving mechanism. The movement of the linear motion component is controlled by a signal, and the plane mirror is directly driven by a single-sided hinge to realize the movement and reset of the plane mirror.
[0038] In the touch projection command input mode, the plane mirror moves between the window and the screen and forms a reflector between the window and the transparent plate. The command input panel image projected by the touch projection module enters the window after passing through the transparent plate and the plane mirror, realizing the operation of inputting commands in the touch projection mode. In eye-tracking command input mode, the plane mirror moves away from the view window and the screen, and the view window faces the screen. The eye-tracking module recognizes eye movements and performs input commands.
[0039] The switching between the two working modes can be done either through software settings or through a physical switch. In this embodiment, to improve control accuracy, a touch switch or contact switch is provided in any of the slides, and a matching contact is provided on the sliding member. The touch switch or contact switch serves as a switch for switching between touch projection command input mode and eye tracking command input mode.
[0040] The specific location of the trigger switch or contact switch can be determined according to actual needs. It can be installed in the area near both ends and react immediately in the event of movement.
[0041] Working principle explanation: The head-mounted glasses are used in conjunction with the ODP fragrance smeller. During the initial fragrance smelling process, the eye-tracking command input mode is activated. On the screen 12, the menu can be selected by eye tracking to open the relevant guidelines and procedural documents for the current fragrance smelling work, as well as the original parameter information of the experimental subject, so that the staff can familiarize themselves with the information of the current fragrance subject and the relevant experimental process.
[0042] During the fragrance-smelling process, when it is necessary to record information, switch to the touch projection command input mode. You can see the projected keyboard intuitively, operate the keyboard with both hands to record information, and store the document data.
[0043] At the end of the fragrance smelling process, switch to the eye-tracking command input mode. Use eye-tracking technology to open the fragrance smelling curve, obtain experimental data, compare it with the document you have recorded, and draw experimental conclusions.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A head-mounted glasses device for use with an ODP snorkel, featuring switchable eye-tracking and touch projection, characterized in that: It includes the main body of the head-mounted glasses, a plane mirror, an eye-tracking module, and a touch projection module; An optical cavity is located between the viewing window and the screen of the head-mounted glasses, and the lower end face of the optical cavity is encapsulated by a transparent plate. The plane mirror is movably installed in the optical cavity of the head-mounted glasses body, the touch projection module is installed at the lower end of the head-mounted glasses body and projects downwards or forwards, and the eye-tracking module is installed on the front side of the optical cavity and is positioned directly opposite the viewing window. The main unit built into the head-mounted glasses is used to control the movement of the plane mirror and to control the switching between touch projection command input mode and eye tracking command input mode. In the touch projection command input mode, the plane mirror moves between the window and the screen and forms a reflector between the window and the transparent plate. The command input panel image projected by the touch projection module enters the window after passing through the transparent plate and the plane mirror, realizing the operation of inputting commands in the touch projection mode. In eye-tracking command input mode, the plane mirror moves away from the view window and the screen, and the view window faces the screen. The eye-tracking module recognizes eye movements and performs input commands.
2. The head-mounted glasses for use with an ODP olfactory device that can switch between eye tracking and touch projection, as described in claim 1, are characterized in that: The optical cavity has grooves on its top and front sidewalls. The top and bottom of the plane mirror are slidably engaged with the grooves by sliding members to enable the plane mirror to move.
3. The head-mounted glasses for use with an ODP olfactory device, which can switch between eye tracking and touch projection, as described in claim 2, are characterized in that: A touch switch or contact switch is provided in any of the slides, and a matching contact is provided on the slider. The touch switch or contact switch serves as a switch for switching between touch projection command input mode and eye tracking command input mode.
4. The head-mounted glasses for use with an ODP snorkel, as described in claim 3, characterized in that: The sliding grooves set on the front sidewall of the optical cavity are located at both ends of the viewing screen, and the sliding parts are respectively installed at the two lower corners of the plane mirror.
5. The head-mounted glasses for use with an ODP olfactory device, as described in any one of claims 2-4, characterized in that: The sliding member is a ball-head assembly hinged to a plane mirror, and the groove is a narrow-mouthed arc groove that mates with the ball-head assembly.
6. The head-mounted glasses with switchable eye tracking and touch projection for use with an ODP olfactory device according to any one of claims 1-4, characterized in that: The top and front sides of the head-mounted glasses are respectively provided with driving mechanisms. The two driving mechanisms are connected to the top and bottom of the plane mirror through flexible traction components to drive the displacement of the plane mirror.
7. The head-mounted glasses with switchable eye tracking and touch projection for use with an ODP olfactory device according to any one of claims 1-4, characterized in that: The touch projection module includes a projection component, a camera, and a light sensor, wherein the light sensor is used to sense whether the projection component is activated.
8. The head-mounted glasses for use with an ODP olfactory device, according to any one of claims 2-4, characterized in that: The thickness of the groove located on the front sidewall of the optical cavity is greater than the thickness of the viewing screen.