Visual fatigue detection device

Abstract

A visual fatigue detection device comprising a detection device body (1), characterized in that: a TOF laser distance measuring sensor (11) and an openMV visual recognition module (12) are arranged inside the detection device body (1), and a computer screen hook (18) is arranged on one side of the detection device body (1).

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electronic products, in particular to a device for detecting visual fatigue. TECHNICAL BACKGROUND

[0002] Visual fatigue is caused by improper eye use for a long time (e.g., high tension, visual viewing at close range, blinking target, too high / too low target brightness, excessive eye use, etc.). Eye symptoms such as eye pain can, in severe cases, develop into a syndrome of general complaints such as headache, dizziness, and fatigue.

[0003] With the popularization of computer office and online learning, prolonged staring at the computer screen has become one of the main causes of visual fatigue. Therefore, there is an urgent need for an intelligent hardware device that can perceive the user's line of sight and viewing distance in real time to support the visual health of computer users. CONTENT OF THIS APPLICATION

[0004] The utility model provides a visual fatigue detection device to solve the problems in the background of the technology.

[0005] To achieve the above objects, the utility model provides the following technical solutions: A visual fatigue detection device includes a detection device main body, and the inside of the detection device main body is equipped with a TOF laser distance measuring sensor and an openmv visual detection module, and the detection device main body is equipped with a computer screen hook on one side.

[0006] In addition, one side of the main body of the detection device is provided with a sensor through-hole and a vision module through-hole, and both the sensor through-hole and the vision module through-hole are located above the computer screen hook.

[0007] In addition, the sensor through-hole and the vision module through-hole are located on one side of the TOF laser ranging sensor and the openmv vision recognition module, respectively.

[0008] In addition, the side of the main body of the detection device that is away from the computer screen hook is provided with a speaker back panel.

[0009] In addition, a large number of speaker holes are provided inside the speaker rear panel.

[0010] In addition, the top of the main body of the detection device is provided with a switching hole and a loading hole located on one side of the switching hole.

[0011] In addition, one side of the main body of the detection device is provided with a number of not less than one reservation hole for the indicator light.

[0012] In addition, one side of the main body of the detection device, which is away from the reserved hole of the indicator lamp, is provided with a heat dissipation and ventilation hole.

[0013] In addition, a battery is provided inside the main body of the detection device.

[0014] In addition, one side of the computer monitor hook is designed with a computer camera avoidance notch.

[0015] Compared with the prior art, the utility model provides a visual fatigue detection device that has the following advantageous effects: The visual fatigue detection device, the openmv visual recognition module, continuously detects whether the user is looking at the screen, and the TOF laser distance sensor measures the distance between the user and the screen in real time. If the user looks longer than the set time or gets too close, the rear speaker controls the display. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic structural representation of the utility model; Fig. 2 a structural side view of the utility model; Fig. 3 a structural side view of the utility model; Fig. Figure 4 is a schematic diagram of the internal structure of the main body of the detection device of the utility model.

[0016] In the figure: 1. The main body of the detection device; 101 sensor through hole; 102 vision module through hole; 11. TOF laser ranging sensor; 12. openmv visual detection module; 13, switching hole; 14. charging hole; 15. heat dissipation and ventilation holes; 16. reserved holes for the indicator light; 17. speaker back panel; 171 speaker hole; 18. computer screen hook; 181. The computer camera avoids gaps; 19. batteries. DETAILED DESCRIPTION

[0017] Below, the technical solution in the embodiment of the utility model is described clearly and completely in conjunction with the drawings in the embodiment of the utility model. It is obvious that the described embodiments are only a part of the embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work fall within the scope of protection of the utility model.

[0018] With reference to the Fig.1-4, the utility model discloses a visual fatigue detection device including a detection device main body 1, and the inside of the detection device main body 1 is equipped with a TOF laser distance measuring sensor 11 and an openmv visual detection module 12, and one side of the detection device main body 1 is equipped with a computer screen hook 18.

[0019] TOF laser distance sensor 11: Detects the distance between the user's face and the computer screen and judges whether it is shorter than the healthy eye distance (e.g., 30 cm). If the distance is too short, it may be considered a bad eye habit.

[0020] OpenMV Visual Recognition Module 12: Captures real-time facial images of the user and uses the built-in image processing algorithm to determine whether the user is "looking directly at the computer screen." The main criteria are whether the face is facing the camera, whether the eyes are looking forward, etc.

[0021] Main control module (integrated in openmv's visual detection module 12): Logic determines whether the user is staring at the screen for a long time (e.g., more than 15 minutes) or whether the distance between the user and the screen is abnormal.

[0022] Speaker (integrated on the speaker rear panel 17): When the visual fatigue hazard condition is detected, the main control module controls the speaker to issue a voice reminder or prompt tone to prompt the user to rest or adjust the distance.

[0023] Specifically, one side of the detection device main body 1 is provided with a sensor through-hole 101 and a vision module through-hole 102, wherein both the sensor through-hole 101 and the vision module through-hole 102 are located above the computer screen hook 18, and the sensor through-hole 102 are located on one side of the TOF laser distance measuring sensor 11 and the openmv vision recognition module 12, respectively.

[0024] In this embodiment, the sensor through-hole 101 and the vision module through-hole 102 are used to expose the TOF laser ranging sensor 11 and the openmv vision recognition module 12, respectively, which does not affect the use of the TOF laser ranging sensor 11 and the openmv vision recognition module 12.

[0025] In particular, the side of the main body 1 of the detection device facing away from the computer screen hook 18 is provided with a speaker back panel 17.

[0026] In this embodiment, a speaker is integrated within the main body 1 of the detection device on one side of the speaker rear panel 17, and when it is detected that the risk condition for visual fatigue is met, the main control module controls the speaker to output a voice reminder or a prompt sound to prompt the user to rest or adjust the distance.

[0027] In particular, a plurality of speaker holes 171 are provided inside the speaker rear wall 17.

[0028] In this embodiment, the speaker hole 171 is used to penetrate the sound without blocking the sound, and at the same time, the speaker can be protected.

[0029] Specifically, the top of the main body 1 of the detection device is provided with a switching hole 13 and a loading hole 14 located on one side of the switching hole 13.

[0030] In this embodiment, the charging hole 14 is used to install a charging interface for charging the battery 19, and the switch hole 13 is used to install a switch to turn on the main body 1 of the detection device.

[0031] In particular, one side of the main body 1 of the detection device is provided with a number of not less than one indicator reservation holes 16.

[0032] In this embodiment, the reserved hole 16 for the indicator light is used to install the indicator light to display the power of the battery 19 and flash to remind the user to pay attention to quiet.

[0033] In particular, a heat dissipation ventilation hole 15 is provided on the side of the main body 1 of the detection device, which is away from the reserved hole 16 of the indicator lamp.

[0034] In this embodiment, the heat dissipation vent hole 15 is used to encompass the internal components of the device body 1 for heat dissipation, thereby preventing failure due to high heat.

[0035] In particular, a battery 19 is provided inside the detection device body 1.

[0036] In this embodiment, the battery 19 is used to power the TOF laser ranging sensor 11 and the openmv visual recognition module 12.

[0037] In particular, one side of the computer monitor hook 18 is provided with a computer camera avoidance notch 181.

[0038] In this embodiment, the main body 1 of the detection device is suspended on the computer screen by the computer screen hook 18 and is located in the center of the computer screen, and the computer camera avoidance notch 181 can avoid the camera on the computer screen without affecting the use of the camera.

[0039] In summary, the visual fatigue detection device, the openmv visual recognition module 12, continuously detects whether the user is looking at the screen, and the TOF laser distance sensor 11 measures the distance between the user and the screen in real time. If the user looks at the screen for longer than the set time or approaches it, the rear speaker 17 controls the display to issue a prompt tone or voice prompt.

[0040] Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various variations, modifications, substitutions and variants can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of the utility model being defined by the appended claims and their equivalents. SUMMARY

[0041] The utility model discloses a visual fatigue detection device related to the technical field of electronic products. It includes the detection device main body, and a TOF laser distance measuring sensor and an openMV visual detection module are arranged inside the detection device main body. The openMV visual detection module continuously detects whether the user is looking at the screen, and the TOF laser distance sensor measures the distance between the user and the screen in real time. If the user looks at the screen for longer than the set time or gets too close, the system resets the countdown. The device runs independently of the computer operating system without drivers or software cooperation, which is convenient for promotion and deployment.

Claims

[1] A visual fatigue detection device comprising a detection device body (1), characterized by that: a TOF laser distance measuring sensor (11) and an openmv visual recognition module (12) are arranged inside the detection device body (1), and a computer screen hook (18) is arranged on one side of the detection device body (1). [2] Visual fatigue detection device according to claim 1, characterized by that: one side of the main body (1) of the detection device is provided with a sensor through-hole (101) and a vision module through-hole (102), wherein both the sensor through-hole (101) and the vision module through-hole (102) are arranged above the computer screen hook (18). [3] Visual fatigue detection device according to claim 2, characterized bythat: the sensor through-hole (101) and the vision module through-hole (102) are each arranged on one side of the TOF laser distance measuring sensor (11) and the openmv vision recognition module (12), respectively. [4] Visual fatigue detection device according to claim 1, characterized by that: the side of the main body (1) of the detection device remote from a computer screen hook (18) is provided with a speaker back plate (17). [5] Visual fatigue detection device according to claim 4, characterized by that: a plurality of speaker holes (171) are provided inside the speaker back plate (17). [6] Visual fatigue detection device according to claim 1, characterized by that: the top of the main body (1) of the detection device is provided with a switching hole (13) and a loading hole (14) arranged on one side of the switching hole (13). [7] Visual fatigue detection device according to claim 1, characterized by that: one side of the main body (1) of the detection device is provided with a number of not less than one indicator reservation holes (16). [8] Visual fatigue detection device according to claim 1, characterized by that: the side of the main body (1) of the detection device remote from the reserved hole (16) for the indicator lamp is provided with a heat dissipation ventilation hole (15). [9] Visual fatigue detection device according to claim 1, characterized by that a battery (19) is arranged inside the main body (1) of the detection device. [10] Visual fatigue detection device according to claim 1, characterized by that: one side of the computer screen hook (18) is provided with a computer camera prevention notch (181).

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