Features of USB Iris Coding Recognition Module
With the independently developed iris coding recognition chip as its core, the USB Iris Coding Recognition Module (hereinafter referred to as the Iris Module) integrates an internationally leading-level iris coding recognition algorithm, enabling accurate and fast recognition. This series of iris coding recognition modules is equipped with a universal USB 3.0 interface, which can be integrated into all devices with a USB interface to acquire, code and transmit iris information, with no user capacity limit. During acquisition, both the left and right eyes can be acquired and registered simultaneously; during recognition, either a single eye or both eyes can be used for recognition. It can be connected to a PC via the USB 3.0 communication interface and supports operating systems such as Windows XP, 7/8/10/11, Linux, and Android. The company also provides corresponding SDK development kits, facilitating simple secondary development and application.
Main Functions of the USB Iris Coding Recognition Module
1.Iris acquisition;
2.Iris coding;
3.Iris matching
Composition of the USB Iris Coding Recognition Module
The USB Iris Coding Recognition Module internally consists of an iris camera part and an iris coding part:
1.The iris camera part mainly realizes the function of acquiring iris images, including a camera, an auxiliary light source and its interface board, and a control board for distance measurement and three-color lights;
2.The iris coding part includes a coding template and an interface board, which is used to process iris images to generate iris templates, and realize template matching as well as communication and transmission.
In a typical application, the host computer (PC/ARM) communicates with the iris coding board via the USB 3.0 protocol to control the iris coding board. The control of other peripheral devices and user interaction are executed by the host computer. The connection diagram between the host computer and the module in a typical design is as follows:
Application Cases of the USB Iris Coding Recognition Module
In this typical design, the PC/ARM host computer serves as the control center, which is connected to the iris coding recognition module via a USB interface and receives/sends control signals to control the module. Meanwhile, the PC/ARM host computer is connected to external devices (such as touch screens and keyboards) to receive external input signals.
Application Fields
The USB Iris Coding Recognition Module realizes basic functions such as iris acquisition, iris coding, and iris matching. It requires no external power supply and is directly connected to the PC/ARM host computer and peripheral devices via the USB 3.0 communication interface, with no limit on the storage capacity of iris templates. Using this module, a variety of biometric devices with iris coding recognition functions can be developed.
The main application fields of the USB Iris Coding Recognition Module are:
●heidianIris acquisition devices
●Iris login devices
●Iris encryption and decryption devices
●Iris attendance devices
●Iris access control devices
●Identity authentication and authorization devices
Application Examples
1. Binocular Iris Acquisition Device
The USB Iris Coding Recognition Module can be integrated into the development and design of binocular iris acquisition devices. A typical binocular iris acquisition device launched by Wuhan Homsh is shown in the figure below:
This typical USB binocular iris acquisition device is designed with an additional display screen and distance measurement module according to different appearance and functional requirements, facilitating use in various application scenarios. The design scheme is shown in the figure below:
2. Binocular Iris Access Control Machine
The USB Iris Coding Recognition Module can be integrated into the development and design of binocular iris access control machines. A typical binocular iris access control machine launched by Wuhan Homsh is shown in the figure below:
This typical binocular iris access control machine is designed with the integration of the USB Iris Coding Recognition Module, and is also equipped with a built-in mini PC, ID card and CPU card recognition modules, a keyboard peripheral, and a 4-inch full-color display screen. It supports multiple door-opening methods such as iris, ID card, CPU card, and password. The design scheme is shown in the figure below:
The USB Iris Coding Recognition Module is connected to the built-in mini PC via the USB 3.0 communication interface, enabling iris acquisition, coding, and matching. This binocular iris access control machine can be connected to the iris registration host via the TCP/IP network mode, allowing simple and fast networking. During iris registration and acquisition, the iris templates are automatically synchronized and distributed to the memory of the terminal mini PC, enabling unlimited user capacity. In addition, it can automatically detect changes (addition, deletion, modification) of iris information in the host-side access control management software and perform synchronous changes to maintain consistency, realizing integrated automation.
USB Iris Coding Recognition Module
All iris acquisition devices of Wuhan Homsh are equipped with the USB Iris Coding Recognition Module. The integration of the USB Iris Module offers the following advantages:
1.The plug-and-play USB 3.0 interface enables quick connection and recognition with the PC host, featuring fast transmission speed and easy integration;
2.The product design scheme can include an additional display screen or distance measurement module, which facilitates detecting the acquisition range and effectively improves the user-friendliness of human-computer interaction, making the product design scheme flexible and versatile;
3.The goggle-type binocular iris acquisition device adopts VR design, enabling acquisition with one touch (immediate acquisition upon contact), with simple, convenient and efficient acquisition steps.
The development of other iris acquisition devices can refer to this typical application product for diversified designs.
