Portable iris recognition device applied to underground

Abstract

The utility model discloses a portable iris recognition device applied underground, which comprises a shell, a display screen is arranged on the front surface of the shell, a recognition device and a light supplementing module are arranged in the shell, and the recognition device comprises a positioning module and a recognition module; the light supplementing module comprises a natural light supplementing unit and an infrared light supplementing unit; the natural light supplementing unit is used for supplementing light to the positioning module; the infrared light supplementing unit is used for supplementing light to the identification module; the positioning module is used for determining the position of a to-be-recognized target. The recognition module is used for recognizing the to-be-recognized target, and is used for solving the problem of positioning failure or misrecognition.

Description

Technical Field

[0001] This utility model relates to the field of personnel identification systems in mines, and in particular to a portable iris recognition device for use underground. Background Technology

[0002] With increasingly stringent safety management requirements in underground operations such as coal mines and tunnels, biometric technologies (such as fingerprint and facial recognition) are gradually being used for personnel identification. However, the complex working conditions underground, including low light levels, high dust concentrations, high humidity, and miners' faces easily becoming stained, present the following challenges to existing technologies:

[0003] Traditional facial recognition technology has limitations: visible light cameras produce blurry images in low light, and dirt on miners' faces (such as silt and coal dust) can obscure key features, leading to positioning failures or misidentification.

[0004] Iris recognition technology has insufficient adaptability: conventional iris devices rely on fixed light sources and static focusing, making it difficult to collect clear iris textures in environments with dust scattering and water vapor interference. In addition, the devices are bulky and consume a lot of power, making them inconvenient to carry underground.

[0005] The optical adjustment mechanism is imperfect: most existing supplementary lighting systems are global illumination systems, which are prone to overexposure or reflection. They lack dynamic supplementary lighting and precise focusing capabilities for the eye area and cannot adapt to the changing working conditions downhole. Utility Model Content

[0006] The purpose of this invention is at least to provide a portable iris recognition device for use in underground wells, in order to solve the problems of positioning failure or misidentification.

[0007] To achieve the above objectives, this utility model provides a portable iris recognition device for use in underground mining, comprising: a housing, a display screen on the front of the housing, and an identification device and a supplementary lighting module disposed within the housing; the identification device includes a positioning module and an identification module; the supplementary lighting module includes a natural light supplementary lighting unit and an infrared light supplementary lighting unit; the natural light supplementary lighting unit is used to supplement light for the positioning module; the infrared light supplementary lighting unit is used to supplement light for the identification module; the positioning module is used to determine the location of the target to be identified; and the identification module is used to identify the target to be identified; further comprising: a control module connected to the identification module and the positioning module, used for controlling and processing data of the identification module and the positioning module.

[0008] Optionally, a sealing cover is provided on the back of the housing to form a sealed space inside the housing.

[0009] Optionally, a transparent cover is provided on the outside of the display screen to seal the front of the housing.

[0010] Optionally, a connecting post is also provided inside the housing, which is connected to the connection port of the identification device for fixing the identification device.

[0011] Optionally, the positioning module is used for facial contour recognition to determine the iris position.

[0012] Optionally, the recognition module is used to perform iris recognition based on the iris position located by the positioning module.

[0013] Optionally, the recognition module is used to process the iris image using a convolutional neural network algorithm and match it with a pre-stored database to perform target recognition.

[0014] The portable iris recognition device for underground applications provided in this embodiment of the invention supplements natural light through a supplementary lighting device, enabling the positioning module to accurately locate the target to be identified, namely the facial contour of the personnel working underground. We know that due to the harsh underground working environment, faces are often covered by dust, making individual identification by face alone impossible. However, facial contours can be recognized. By recognizing the facial contours through the positioning device, the individual can be located. Based on this location information, the device can then further perform target identification, which can be achieved through iris recognition, retinal recognition, or vein recognition, among other methods. In underground mining operations, although facial features are covered by dust, the iris of the eyes is always exposed. Even with mud on the face, the iris information can still be accurately captured through local enhancement and autofocus by the supplementary lighting module. Therefore, there is no situation where iris recognition is impossible due to mud on the face. Moreover, iris recognition is not limited by visible light and can perform accurate recognition in low-light environments. The positioning module first locates and determines the iris position before recognition, while the control module performs data processing, mainly including image contour recognition of the image captured by the positioning module to determine the iris position. The control module also compares the iris information captured by the recognition module to ultimately determine the target information. This increases the efficiency and accuracy of recognition, solves the current problems of positioning failure or misidentification, and iris recognition is relatively low-cost and easy to implement.

[0015] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0016] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0017] Figure 1 This is a schematic diagram of a portable iris recognition device applied underground, according to an embodiment of the present invention.

[0018] Figure 2 This is a partial schematic diagram of a portable iris recognition device applied underground, according to an embodiment of this utility model.

[0019] Reference numerals: 1. Housing; 11. Display screen; 12. Transparent cover; 13. Sealing cover; 14. Mounting slot; 15. Connecting post; 16. Connecting port; 2. Identification device; 21. Positioning module; 22. Identification module; 31. Natural light supplement unit; 32. Infrared light supplement unit; 4. Control module Detailed Implementation

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] The following is for reference. Figure 1 This invention describes a portable iris recognition device for use in underground mining. A recognition device 2 is housed within a housing 1. The recognition device 2 is connected to a connecting post 15 on the housing 1 via a connection port 16, allowing it to be fixed inside the housing 1. A display screen 11 is provided on the front of the housing 1 to display the recognition result. A transparent cover 12 is provided outside the display screen 11, and is mounted on the front of the housing 1 via a mounting groove 14, covering the display screen 11 and sealing the housing 1 to protect the device inside. A sealing cover 13 is also provided on the back of the housing 1, further sealing the housing 1.

[0022] The identification device 2 includes a positioning module 21, an identification module 22, and a control module. The positioning module 21 is equipped with a natural light supplement unit 31, which emits natural light to prevent the target from being unlocatable due to insufficient light. An infrared light supplement unit 32 emits infrared light to supplement the illumination of the identification module 22. The positioning module 21 includes an image acquisition camera for acquiring image information of the target, which in this case is an underground worker. Since the facial features of the target are mostly obscured by dust when working underground, the camera here is not for special facial recognition, but only to determine the facial contour through the collected image information. The position of the iris is determined by the facial contour information, and the position information is provided to the recognition module 22. In this way, the recognition module 22 can directly recognize the iris at the corresponding position. If the recognition module is used alone, it needs to find the iris to be recognized over a large area before recognition. Since the recognition module 22 uses infrared recognition and the image acquisition range of the recognition module 22 is small, it takes time to accurately locate the iris and is easily interfered with. With the device of this application, the positioning module 21 first provides a location based on the contour of the target, and then the recognition module 22 performs recognition, which can greatly improve the recognition efficiency, accurate positioning, and recognition accuracy.

[0023] like Figure 2 As shown, the control module 4 is equipped with a chip, mainly used for data processing and control. The control module 4 can perform data processing, primarily including image contour recognition of the images acquired by the positioning module 21 to determine the position of the iris. The control module 4 is also used to compare the iris information acquired by the recognition module 22 to ultimately determine the information of the target being identified. The control module 4 can also control the supplementary lighting module, adjusting the light intensity of the natural light supplementary lighting unit and the infrared light supplementary lighting unit to adapt to different environments.

[0024] The control module 4 includes an information storage unit for storing iris information of all downhole workers, an information acquisition unit for acquiring and collecting the faces and irises of downhole workers, and iris information directly collected by the iris recognition module. The control module 4 also includes an analysis unit for comparing the stored iris information with the collected iris information to determine personnel information and other personnel management information. The positioning module 21 performs rapid positioning and focusing on the facial features of the person to be identified. The recognition module 22 performs accurate iris recognition based on the iris position identified by the positioning module.

[0025] In some publicly disclosed embodiments, the supplementary lighting module includes a natural light supplementary lighting unit 31 and an infrared light supplementary lighting unit 32. The infrared light wavelength is 850nm, the visible light color temperature range is 3000K-6000K, and it supports dynamic adjustment of the supplementary lighting brightness according to the ambient light intensity.

[0026] In some publicly disclosed embodiments, the positioning module 21 determines the position information of the iris by acquiring image contour information. The recognition module 22 acquires the iris image of the target based on the position information, processes the iris image using a convolutional neural network algorithm, and matches it with a pre-stored database to perform target recognition. If the match is successful, the recognition result is output to the display screen or security system; if it fails, it triggers re-acquisition or other processing.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A portable iris recognition device for use in underground wells, characterized in that, include: The housing has a display screen on its front side and an identification device and a supplementary lighting module inside. The identification device includes a positioning module and an identification module. The supplementary lighting module includes a natural light supplementary lighting unit and an infrared light supplementary lighting unit; The natural light supplement unit is used to provide supplemental light to the positioning module; The infrared light supplement unit is used to supplement the light for the recognition module; The positioning module is used to determine the location of the target to be identified; The identification module is used to identify the target to be identified; It also includes a control module, which is connected to the identification module and the positioning module, and is used for controlling the identification module and the positioning module and processing data.

2. The portable iris recognition device for use in underground mining according to claim 1, characterized in that, A sealing cover is provided on the back of the housing to create a sealed space inside the housing.

3. The portable iris recognition device for use in underground wells according to claim 1, characterized in that, A transparent cover is provided on the outside of the display screen to seal the front of the housing.

4. The portable iris recognition device for use in underground wells according to claim 1, characterized in that, The housing also includes a connecting post, which is connected to the connection port of the identification device for fixing the identification device.

5. The portable iris recognition device for use in underground wells according to any one of claims 1 to 4, characterized in that, The positioning module is used for facial contour recognition to determine the iris position.

6. The portable iris recognition device for use in underground mining according to claim 5, characterized in that, The recognition module is used to perform iris recognition based on the iris position located by the positioning module.

7. The portable iris recognition device for use in underground mining according to claim 6, characterized in that, The recognition module is used to process iris images using a convolutional neural network algorithm and match them with a pre-stored database to perform target recognition.

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