A multimodal data acquisition all-in-one machine

Abstract

This utility model discloses a multimodal data acquisition all-in-one machine, including a host device. The host device houses a four-fingerprint acquisition module, a face acquisition module, an iris image acquisition module, a display screen, a main control unit, and a power supply unit. The four-fingerprint acquisition module is used to simultaneously acquire fingerprint image information from the user's four fingers. The face acquisition module is used to acquire the user's face image information. The iris image acquisition module is used to acquire the user's iris image information. The main control unit is electrically connected to the above acquisition modules and the display screen, and is used to store, manage, and process the acquired multimodal images. This utility model, by integrating multiple biometric acquisition modules into an all-in-one host device, achieves centralized acquisition and display of multimodal images such as fingerprints, faces, and irises. It has the advantages of compact structure, convenient operation, centralized data management, and strong applicability, and can be widely used in fields requiring identity recognition, such as public security, finance, and border inspection.

Description

Technical Field

[0001] This utility model relates to a data acquisition device, specifically a multimodal data acquisition integrated machine. Background Technology

[0002] With the rapid development of informatization and intelligentization, identity recognition and biometric identification technologies have been widely applied in fields such as public security, border inspection, finance, and government affairs. Among them, fingerprint recognition, facial recognition, and iris recognition, as typical biometric identification methods, have become important means of identity verification due to their strong uniqueness, ease of use, and high security. Existing biometric collection devices typically employ a single-modal collection method, such as standalone fingerprint, facial, or iris collection devices. These single-function devices often require multiple units to operate simultaneously, resulting in large size, complex layout, and scattered data storage, leading to low management efficiency.

[0003] On the other hand, to meet the high-efficiency verification needs in complex application scenarios, multimodal biometric recognition is gradually becoming a development trend. By collecting and comparing multiple biometric features, the accuracy and security of recognition can be improved. However, most existing multimodal recognition systems are composed of multiple independent devices, lacking an integrated design in their structure. This not only increases hardware costs and installation difficulty but also easily leads to compatibility issues between different modules during image acquisition, transmission, and display. Especially when it is necessary to simultaneously collect images such as fingerprints, faces, and irises, operators need to switch between multiple devices, resulting in a poor user experience.

[0004] Furthermore, existing multimodal acquisition devices often lack integrated convenient display and interaction units. Acquisition results typically require an external computer for display and management, resulting in cumbersome operation steps that hinder rapid deployment and mobile use. In certain scenarios, such as mobile policing and border clearance applications, there is an urgent need for a portable, integrated multimodal acquisition device capable of acquiring, storing, and displaying images of multiple biometric features, such as fingerprints, faces, and irises, within a single host unit. This would simplify operational processes and improve work efficiency. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a multimodal data acquisition integrated machine, which effectively overcomes the shortcomings of existing technologies.

[0006] This utility model is achieved through the following technical solution: a multimodal acquisition integrated machine, including a device host, wherein the device host is equipped with:

[0007] The four-fingerprint acquisition module is used to simultaneously acquire fingerprint image information of the user's four fingers;

[0008] The face capture module is used to capture the user's facial image information;

[0009] Iris image acquisition module, used to acquire the user's iris image information;

[0010] A display screen is used to show and interact with the collected image information;

[0011] The main control unit is electrically connected to the four-finger fingerprint acquisition module, the face acquisition module, the iris image acquisition module, and the display screen, and is used to store, manage, and process the acquired multimodal images;

[0012] A power supply unit is used to provide power to the host device.

[0013] As a preferred technical solution, the four-fingerprint acquisition module includes multiple fingerprint sensing units arranged in parallel, which can simultaneously acquire multiple fingerprint images in a single operation.

[0014] As a preferred technical solution, the face acquisition module includes a camera component and a light source component. The light source component is used to provide supplementary lighting in low-light environments to ensure the clarity of the face image.

[0015] As a preferred technical solution, the iris image acquisition module includes an infrared camera and an infrared light source. The infrared camera is used to acquire detailed images of the iris, and the infrared light source is used to provide the illumination required for iris recognition.

[0016] As a preferred technical solution, the display screen is a touch screen, which is used to display image information while enabling user operation input.

[0017] As a preferred technical solution, the main control unit includes a processor and a memory. The processor is used to execute software programs related to acquisition, storage, and display, and the memory is used to store the acquired multimodal image data.

[0018] As a preferred technical solution, the power supply unit includes a rechargeable battery pack and a power management module, which is used to switch between battery power supply and external power supply.

[0019] As a preferred technical solution, the device host is an integrated structure, and the four-finger fingerprint acquisition module, face acquisition module, iris image acquisition module and display screen are all installed in a unified housing.

[0020] As a preferred technical solution, a data communication interface is established between the main control unit and the display screen to display the fingerprint, face and iris image acquisition results in real time.

[0021] The beneficial effects of this utility model are as follows: The multimodal acquisition all-in-one machine provided by this utility model solves the problems of existing technologies where multiple biometric identification devices need to be arranged separately, are complicated to operate, and have scattered data by integrating a four-finger fingerprint acquisition module, a face acquisition module, an iris image acquisition module, a display screen, a main control unit, and a power supply unit into the device host. It realizes multimodal synchronous acquisition, storage, and display of fingerprint, face, and iris images.

[0022] The device has the following advantages: First, it adopts an integrated structural design, which can complete the acquisition and processing of multiple images in a single host, reducing the size of the device and the difficulty of its layout, making it easy to carry and install.

[0023] Secondly, the four-fingerprint acquisition module can acquire multiple fingerprint images at once, improving acquisition efficiency and avoiding the time consumption caused by acquiring each finger individually.

[0024] Third, by combining the face capture module and the iris capture module, multi-dimensional biometric information can be provided in different scenarios, improving the reliability and security of identity recognition;

[0025] Fourth, the display screen works in conjunction with the main control unit to achieve real-time display and storage management of the collected results, reducing dependence on external computers and enabling the device to operate independently;

[0026] Fifth, the power supply unit supports switching between battery power and external power, ensuring stable use of the equipment in both fixed locations and mobile scenarios. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the main unit of the device according to this utility model;

[0029] Figure 2 This is a block diagram illustrating the system principle of this utility model. Detailed Implementation

[0030] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0031] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0032] like Figure 1 and Figure 2 As shown, this utility model discloses a multimodal fingerprint acquisition all-in-one machine, comprising a single-piece main unit with an integrated shell structure. Multiple functional modules are arranged sequentially inside, forming a complete acquisition system through electrical connections and structural design. The main unit first houses a four-fingerprint acquisition module, which consists of multiple fingerprint sensing units arranged in parallel. Typically, four independent capacitive or optical fingerprint sensor sheets are used, arranged ergonomically to suit the natural flatness of the fingers. In actual use, the operator only needs to place four fingers of one hand flat on the fingerprint acquisition area, and the sensing units can simultaneously acquire four fingerprint images in a single operation. This avoids the cumbersome operation of repeatedly placing fingers in existing technologies, significantly improving acquisition efficiency. This module is connected to the main control unit via a high-speed interface that supports parallel data transmission, ensuring that high-resolution fingerprint images can be completely transmitted to the processing end in a short time, avoiding image delay or resolution degradation. To improve accuracy, the surface of the four-finger sensing unit is also covered with a wear-resistant transparent protective layer. This protective layer can protect the sensor without affecting the image recognition effect, and it also has a dirt-proof design to ensure clear acquisition even under high-frequency use conditions.

[0033] For face capture, the device's main unit houses a face capture module, which consists of a high-resolution camera assembly and a light source assembly. The camera assembly, mounted on the upper front of the main unit, employs a wide-angle lens design, automatically capturing a complete image of the user's face within a certain range. The light source assembly is arranged around the camera, typically using low-power white LEDs or infrared supplementary lights. It automatically activates when ambient light is insufficient, providing soft and uniform illumination for the user's face. This supplementary lighting design avoids dark areas or overexposure in the face image, ensuring the clarity of key facial features such as contours, eyes, nose, and lips. After capturing the image, the face capture module transmits the data to the main control unit via an internal bus. The main control unit performs preprocessing on the image, including contrast enhancement, automatic face region cropping, and noise filtering, thereby improving the reliability of storage and subsequent comparison.

[0034] The iris image acquisition module is located on the front of the device's main unit and consists of an infrared camera and an infrared light source. The light emitted by the infrared light source is invisible to the human eye, causing no visual interference or discomfort to the user. Furthermore, the wavelength of this light is suitable for highlighting the details of the iris texture, facilitating camera capture. Working in conjunction with the light source, the infrared camera accurately captures images of the iris's ring patterns and details when the user looks directly at the camera. To ensure stability, the module also features autofocus and image enhancement functions, maintaining clear imaging at various user eye distances. The acquired iris images are transmitted to the main control unit via a dedicated interface and undergo de-reflection processing and grayscale enhancement before storage to ensure high image contrast and recognition value.

[0035] The device's main unit integrates a touchscreen display on the front, serving not only as a display interface for image acquisition results but also as an interactive platform. While the device is operating, users can select fingerprint, face, or iris recognition modes via the touchscreen and directly view the acquired image information after collection. The display connects to the main control unit via a two-way communication interface, enabling real-time display and rapid response. User-issued commands via touchscreen are instantly transmitted to the main control unit, which executes the corresponding control program. Simultaneously, the display can also show operation prompts and error warnings, helping users maintain correct posture and operating habits during the acquisition process, thereby further improving the success rate.

[0036] The main control unit is the core of the device, internally comprising a processor and memory. The processor uses a high-performance embedded processing chip, capable of simultaneously managing and processing multiple acquired signals. Its functions include coordinating the working order of the four-fingerprint acquisition module, face acquisition module, and iris acquisition module; receiving image signals transmitted from each module; and compressing, classifying, labeling, and storing the images according to the software program. The memory is divided into two parts: high-speed cache and long-term storage. The high-speed cache stores image data during acquisition in real time, ensuring no data loss due to processing delays; long-term storage preserves complete acquisition results and supports retrieval and management by category and time sequence. The main control unit also has pre-installed image management software, capable of classifying, storing, and retrieving acquired fingerprint, face, and iris images, and featuring data encryption to ensure that user privacy information is not leaked during image transmission and storage. Furthermore, a stable communication interface is established between the main control unit and the display screen, ensuring instant display of image results and rapid feedback of user commands, further enhancing the device's interactivity and usability.

[0037] The power supply unit is located at the bottom of the device and includes a rechargeable battery pack and a power management module. The battery pack has a large capacity, enabling extended operation without an external power source, making it particularly suitable for portable applications such as mobile policing and border checks. The power management module switches between battery and external power. When an external power source is available, it powers the device while simultaneously charging the battery, ensuring continuous operation. In the absence of an external power source, the power management module automatically switches to battery power mode, ensuring stable operation in various environments. This design not only guarantees power flexibility but also improves the device's reliability and application range.

[0038] In terms of overall structural design, this utility model's multimodal image acquisition all-in-one machine adopts integrated packaging. The four-fingerprint acquisition module, face acquisition module, iris image acquisition module, and display screen are all installed in a unified housing, resulting in a compact appearance and small size, making it easy to carry and deploy. The modules are coordinated and unified through a main control unit. Users only need to follow the prompts on the touchscreen to complete the acquisition of multimodal images. This device can be used not only in fixed office locations but also independently in outdoor environments requiring mobility and flexibility, demonstrating broad application value.

[0039] In practical applications, this device, through the combined acquisition of four-fingerprint, facial, and iris images, provides multi-dimensional biometric information, significantly improving the accuracy and security of identity verification. Compared to traditional devices relying on single fingerprint or facial recognition, this device can supplement verification with information from other modalities even when a certain individual feature is damaged, blurred, or unclear, significantly reducing false positives and false rejection rates. Simultaneously, the image data is centrally stored within the main control unit, avoiding data inconsistencies caused by the decentralized management of multiple devices, thus improving the overall system's security and management efficiency. Therefore, this device has strong promotional value in fields requiring identity verification, such as public security, judiciary, finance, and border inspection.

[0040] This specific embodiment describes in detail the structural layout, working principle, and interaction relationship of the four-finger fingerprint acquisition module, face acquisition module, iris image acquisition module, display screen, main control unit, and power supply unit, fully demonstrating the advantages of this utility model multimodal acquisition all-in-one machine in terms of functional integration, ease of operation, data security, and application flexibility.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort 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 defined in the claims.

Claims

1. A multi-modal acquisition all-in-one machine, characterized in that, Includes a device host, wherein the device host is equipped with: The four-fingerprint acquisition module is used to simultaneously acquire fingerprint image information of the user's four fingers; The face capture module is used to capture the user's facial image information; Iris image acquisition module, used to acquire the user's iris image information; A display screen is used to show and interact with the collected image information; The main control unit is electrically connected to the four-finger fingerprint acquisition module, the face acquisition module, the iris image acquisition module, and the display screen, and is used to store, manage, and process the acquired multimodal images; A power supply unit is used to provide electrical energy to the host device.

2. The multi-modal acquisition all-in-one machine of claim 1, wherein, The four-fingerprint acquisition module includes multiple fingerprint sensing units arranged in parallel, which can acquire multiple fingerprint images simultaneously in a single operation.

3. The multi-modality acquisition all-in-one machine of claim 1, wherein, The face acquisition module includes a camera component and a light source component. The light source component is used to provide supplementary lighting in low-light environments to ensure the clarity of the face image.

4. The multi-modality acquisition all-in-one machine of claim 1, wherein, The iris image acquisition module includes an infrared camera and an infrared light source. The infrared camera is used to acquire detailed images of the iris, and the infrared light source is used to provide the illumination required for iris recognition.

5. The multi-modality acquisition all-in-one machine of claim 1, wherein, The display screen is a touch screen, used to display image information while enabling user input.

6. The multi-modality acquisition all-in-one machine of claim 1, wherein, The main control unit includes a processor and a memory. The processor is used to execute software programs related to acquisition, storage, and display, and the memory is used to store the acquired multimodal image data.

7. The multi-modality acquisition all-in-one machine of claim 1, wherein, The power supply unit includes a rechargeable battery pack and a power management module, which is used to switch between battery power and external power supply.

8. The multi-modality acquisition all-in-one machine of claim 1, wherein, The device host is an integrated structure, and the four-finger fingerprint acquisition module, face acquisition module, iris image acquisition module and display screen are all installed in the same housing.

9. The multi-modality acquisition all-in-one machine of claim 1, wherein, The main control unit establishes a data communication interface with the display screen to display the fingerprint, face and iris image acquisition results in real time.

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