Intelligent eye movement health monitor

Abstract

The utility model provides an intelligent eye movement health monitor which comprises a monitor body capable of being worn on the head of a human body, the monitor body comprises limiting parts capable of being positioned on the two sides of the head of the human body and a semicircular bayonet, and the two ends of the semicircular bayonet can be connected with the limiting parts in a sliding and positioning mode respectively. The two limiting parts are arranged on the semicircular bayonets through elastic bandages; an eye movement camera module used for collecting eyeball movement data is movably positioned on the limiting part through a support, a scene camera used for collecting scenes in front of eyeballs is movably arranged on the support, and the eye movement camera module and the scene camera are in communication connection with a control module. The intelligent eye movement health monitor is good in wearable performance and high in wearing comfort, the eye movement tracking angle can be flexibly adjusted due to the installation mode of the eye movement camera module and the scene camera, and the monitoring accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical health monitoring, and in particular to an intelligent eye movement health monitor. Background Art

[0002] Eye tracking technology is a method that evaluates an individual's visual behavior, attention concentration, and health status by analyzing eye movement data.

[0003] There are some eye tracking devices on the market, which can realize the eye tracking function to a certain extent, but they still have problems of poor wearability or discomfort, and lack of accuracy due to individual differences and inconvenient adjustment of the tracking angle. At the same time, traditional eye tracking devices often cannot meet the real-time requirements in terms of processing speed, resulting in poor user experience. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned prior art, the purpose of the utility model is to provide an intelligent eye movement health monitor with good wearability and high accuracy.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides an intelligent eye movement health monitor, including a monitor body that can be worn on a human head, the monitor body includes a limit portion that can be positioned on both sides of the human head, and a semicircular bayonet at both ends that can be slidably positioned and connected to the limit portion, and the two limit portions are arranged on the semicircular bayonet through elastic straps;

[0006] An eye movement camera module for collecting eye movement data is movably positioned on the limiting portion through a bracket, and a scene camera for collecting the scene in front of the eye is movably arranged on the bracket. The eye movement camera module and the scene camera are respectively communicated with a control module, and a power supply module supplies power to the eye movement camera module, the scene camera and the control module.

[0007] The intelligent eye movement health monitor has good wearability and high wearing comfort. In addition, due to the installation method of the eye movement camera module and the scene camera, the eye movement tracking angle can be flexibly adjusted to improve the monitoring accuracy.

[0008] In an optional solution of the intelligent eye movement health monitor, a gyroscope module is positioned on the top of the semicircular bayonet, and the gyroscope module is communicatively connected with the control module.

[0009] In this optional solution, the setting of the gyroscope module can obtain the posture and angular velocity information of the subject's head, further improving the accuracy of monitoring.

[0010] In an optional solution of the intelligent eye movement health monitor, the bracket includes a first support rod hinged to the side of the limiting portion, a second support rod that slides relatively and is positioned at the front end of the first support rod, and the eye movement camera module is hinged to the front end of the second support rod.

[0011] In this optional solution, the eye tracking angle of the eye movement camera module can be flexibly adjusted by rotating the first support rod and the eye movement camera module and sliding the second support rod.

[0012] In an optional solution of the intelligent eye movement health monitor, the scene camera is hinged to the first support rod.

[0013] In this optional solution, the scene camera is rotated so that it faces the scene in front of the eyeball.

[0014] In an optional solution of the intelligent eye movement health monitor, the eye movement camera module is an infrared camera.

[0015] In this optional solution, the infrared camera is not only used to collect eye movement data, but also uses its infrared light to distinguish the iris from the pupil, so that the control module can accurately locate the pupil based on the eye movement data.

[0016] In an optional solution of the intelligent eye movement health monitor, the eye movement camera module includes a camera module and an infrared light source module, and the camera module and the infrared light source module are respectively connected to the control module.

[0017] In this optional solution, the infrared light source module provides infrared light with a wavelength of 910 mm, which is used to distinguish the iris from the pupil, so that the control module can accurately locate the pupil according to the eye movement data.

[0018] In an optional solution of the intelligent eye movement health monitor, the infrared light source module includes an infrared pair tube, a phototransistor and a light-emitting diode. One end of the infrared emitting tube of the infrared pair tube is connected to a power supply, and a first resistor is connected in series between the two. One end of the photosensitive receiving tube of the infrared pair tube is connected to the positive phase end of the phototransistor, and a second resistor is connected in series between the positive phase end of the phototransistor and the power supply. The negative phase end of the phototransistor is connected to the sliding end of the sliding resistor, and the sliding resistor is connected to the power supply. The output end of the phototransistor is connected to the fourth resistor and then connected to the negative pole of the light-emitting diode, and the positive pole of the light-emitting diode is connected to the power supply.

[0019] The infrared light source module in this optional solution has a simple structure and low production cost.

[0020] In an optional solution of the intelligent eye movement health monitor, the control module is a Jetson Xavier NX series edge computing module.

[0021] In an optional solution of the smart eye health monitor, the power management module is TP4056. Through the internal current and voltage detection circuit, the charging process can be accurately controlled to prevent overcharging and over-discharging of the battery, ensuring the safety and life of the battery. When the battery voltage is lower than the set value, the chip will limit the current to the constant current charging mode; when the battery voltage reaches the set value, the chip will automatically switch to the constant voltage charging mode until the battery is fully charged. In this optional solution, Jetson Xavier NX can provide accurate multi-mode AI reasoning capabilities, can run multiple neural networks in parallel or process data from multiple sensors with variable resolutions, and also run CUDA-X AI software, making it easier to optimize the reasoning of deep learning architectures; its CPU has a 6-core Carmel ARM 64-bit, 4MB L3 and 6MB L1 cache, and can support 6 CSI cameras on 12 MIPI CSI-2 channels, so Jetson Xavier NX has fast processing speed and good real-time performance, which improves the user experience.

[0022] In an optional solution of the intelligent eye movement health monitor, the communication between the control module and the eye movement camera module and the scene camera adopts the EPS8266 MCU communication module.

[0023] In this alternative, the ESP8266 MCU communication module has an independent microcontroller chip that can communicate at a higher speed.

[0024] In an optional solution of the intelligent eye movement health monitor, the power module includes a battery and a power management module, and the power management module is a TP4056 linear charging management chip. In this optional solution, the TP4056 linear charging management chip can effectively manage the charging process of the battery, ensure that the battery is charged in a constant current or constant voltage manner, prevent the battery from being overcharged or over-discharged, thereby protecting the battery and extending its service life. The chip has multiple safety mechanisms such as overcurrent and short-circuit protection, which can protect the circuit from damage during the charging process, and can effectively prevent equipment damage or safety accidents.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 It is a structural diagram of the intelligent eye movement health monitor;

[0028] Figure 2 This is the circuit diagram of the infrared light source module;

[0029] Figure 3 This is the pin diagram of Jetson Xavier NX;

[0030] Figure 4 It is the circuit diagram of the power management module. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0033] like Figure 1 As shown, the utility model provides an intelligent eye movement health monitor, including a monitor body that can be worn on a human head, the monitor body includes a limiting portion and a semicircular bayonet 3, wherein the limiting portion can be positioned on both sides of the human head, and the two ends of the semicircular bayonet 3 can be slidably positioned and connected with the limiting portion respectively, and the two limiting portions are arranged on the semicircular bayonet 3 by elastic straps 5.

[0034] An eye movement camera module 1 for collecting eye movement data is movably positioned on the limiting part through a bracket, a scene camera 2 for collecting the scene in front of the eye is movably arranged on the bracket, a gyroscope module 4 is positioned on the top of the semicircular bayonet 3, and the eye movement camera module 1, the scene camera 2, and the gyroscope module 4 are respectively communicated with a control module.

[0035] In order to facilitate the adjustment of the positions of the eye-movement camera module 1 and the scene camera 2, in this embodiment, the bracket includes a first support rod hinged to the side of the limiting portion, and a second support rod that slides relatively and is positioned at the front end of the first support rod. The eye-movement camera module 1 is hinged to the front end of the second support rod. When in use, the first support rod and the eye-movement camera module 1 are rotated respectively, and the second support rod is slid so that the eye-movement camera module 1 is located at a position obliquely below the human eyeball to avoid blocking the subject's line of sight; the scene camera 2 is hinged to the first support rod. When in use, the scene camera is manually rotated to face horizontally forward, or the scene camera can be driven to rotate to face horizontally forward by using a micro-maneuvering device, such as a DF9GMS 180° micro-servo.

[0036] In this embodiment, the eye-tracking camera module 1 includes a camera module and an infrared light source module, both of which are connected to the control module. Preferably, there are at least two infrared light source modules, which are located on both sides of the camera module. Figure 2 As shown, it includes an infrared pair tube U2, a phototransistor U1A and a light emitting diode D1. One end of the infrared transmitting tube of the infrared pair tube U2 is connected to the power supply, and a first resistor R1 is connected in series between the two. One end of the photosensitive receiving tube of the infrared pair tube U2 is connected to the positive phase end of the phototransistor U1A. A second resistor R2 is also connected in series between the positive phase end of the phototransistor U1A and the power supply. The negative phase end of the phototransistor U1A is connected to the sliding end of the sliding resistor RW1, and the sliding resistor RW1 is connected to the power supply. The output end of the phototransistor U1A is connected to the fourth resistor R4 and then connected to the negative electrode of the light emitting diode D1, and the positive electrode of the light emitting diode D1 is connected to the power supply. In this embodiment, the infrared light source module provides infrared rays with a wavelength of 910mm, which are used to distinguish the iris from the pupil. In order to improve the quality of the video stream, the camera module is preferably, but not limited to, a high MV-HS series camera. The MV-HS series cameras have the characteristics of high definition, high precision, low noise, etc., covering Gige, CoaXPress, USB3.1, and 10GiGe high-speed data interfaces.

[0037] The eye movement camera module 1 may also directly use an infrared camera to collect eye movement data and distinguish the iris from the pupil.

[0038] When the eye-movement camera module 1, the scene camera 2, the gyroscope module 4 and the control module communicate with each other, it is preferred but not limited to using an ESP8266 MCU communication module, which has an independent microcontroller chip and can also upload data information (such as image information, relevant attention levels, fatigue and other health parameters analyzed by the control module, etc.) to the cloud, remote servers, etc. at a higher speed for further analysis and management.

[0039] In this embodiment, the power module provides power to each power module, and the power module includes a battery and a power management module. In order to protect the battery of the device, in this embodiment, the power management module preferably but not limited to adopts a TP4056 linear charging management chip, and its circuit connection is as follows: Figure 4 As shown, the BAT pin is the battery connection terminal, and the positive end of the battery is connected to this pin. The TP4056 linear charge management chip can effectively manage the battery charging process, ensure that the battery is charged at a constant current or constant voltage, prevent the battery from being overcharged or over-discharged, thereby protecting the battery and extending its service life. The chip has multiple safety mechanisms such as overcurrent and short-circuit protection, which can protect the circuit from damage during the charging process, and can effectively prevent equipment damage or safety accidents.

[0040] In order to process the transmitted video stream instantly and accurately, in this embodiment, the control module preferably adopts but is not limited to the Jetson Xavier NX series edge computing module, and its circuit diagram is as follows: Figure 3 As shown. Jetson Xavier NX provides precise multi-mode AI reasoning capabilities, capable of running multiple neural networks in parallel or processing data from multiple sensors with variable resolutions, and also runs CUDA-X AI software, making it easier to optimize reasoning for deep learning architectures; its CPU has a 6-core Carmel ARM 64-bit, 4MB L3 and 6MB L1 cache, and can support 6 CSI cameras on 12 MIPI CSI-2 channels. After the eye-movement camera module 1, scene camera 2, and gyroscope module 4 send their respective collected signals to Jetson XavierNX, the deep learning processing unit in Jetson Xavier NX is equipped with the PyTorch framework, using existing technologies to efficiently process the collected eye-movement data, and locate the pupil in real time to ensure the accuracy of tracking. It can also evaluate the user's attention level, fatigue and other health parameters based on the eye-movement data.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An intelligent eye movement health monitor, characterized in that: The monitor comprises a monitor body that can be worn on a human head, the monitor body comprising limiting parts that can be positioned on both sides of the human head, and semicircular bayonet holes (3) at both ends of which can be slidably connected to the limiting parts, and the two limiting parts are arranged on the semicircular bayonet holes (3) via elastic straps (5); An eye movement camera module (1) for collecting eye movement data is movably positioned on the limiting portion via a bracket, and a scene camera (2) for collecting a scene in front of the eye is movably arranged on the bracket. The eye movement camera module (1) and the scene camera (2) are respectively connected to a control module for communication, and a power module supplies power to the eye movement camera module (1), the scene camera (2) and the control module.

2. The intelligent eye movement health monitor according to claim 1, characterized in that: A gyroscope module (4) is positioned on the top of the semicircular bayonet (3), and the gyroscope module (4) is communicatively connected with the control module.

3. The intelligent eye movement health monitor according to claim 1, characterized in that: The bracket comprises a first support rod hinged to the side of the limiting portion, and a second support rod which slides relatively and is positioned at the front end of the first support rod, and the eye-movement camera module (1) is hinged to the front end of the second support rod.

4. The intelligent eye movement health monitor according to claim 3, characterized in that: The scene camera (2) is hinged on the first support rod.

5. The intelligent eye movement health monitor according to claim 1, characterized in that: The eye movement camera module (1) is an infrared camera.

6. The intelligent eye movement health monitor according to claim 1, characterized in that: The eye movement camera module (1) comprises a camera module and an infrared light source module, and the camera module and the infrared light source module are respectively connected to a control module.

7. The intelligent eye movement health monitor according to claim 6, characterized in that: The infrared light source module comprises an infrared pair tube (U2), a photosensitive transistor (U1A) and a light-emitting diode (D1); one end of the infrared emitting tube of the infrared pair tube (U2) is connected to a power supply, a first resistor (R1) is connected in series between the two, one end of the photosensitive receiving tube of the infrared pair tube (U2) is connected to the positive phase end of the photosensitive transistor (U1A), a second resistor (R2) is connected in series between the positive phase end of the photosensitive transistor (U1A) and the power supply, the negative phase end of the photosensitive transistor (U1A) is connected to the sliding end of a sliding resistor (RW1), the sliding resistor (RW1) is connected to the power supply, the output end of the photosensitive transistor (U1A) is connected to a fourth resistor (R4) and then to the negative electrode of the light-emitting diode (D1), and the positive electrode of the light-emitting diode (D1) is connected to the power supply.

8. The intelligent eye movement health monitor according to claim 1, characterized in that: The control module is a Jetson Xavier NX series edge computing module.

9. The intelligent eye movement health monitor according to claim 1, characterized in that: The communication between the control module and the eye-movement camera module (1) and the scene camera (2) adopts an ESP8266 MCU communication module.

10. The intelligent eye movement health monitor according to claim 1, characterized in that: The power module includes a battery and a power management module, and the power management module is a TP4056 linear charging management chip.

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