Fingerprint identification access control machine manufacturers product system composition

Fingerprint recognition access control system

The hardware of the fingerprint access control system is mainly composed of a microprocessor, a fingerprint identification module, a liquid crystal display module, a keyboard, a real-time clock/calendar chip, an electronically controlled lock, and a power supply. The microprocessor serves as the host computer of the system and controls the entire system. The fingerprint identification module mainly completes the functions of fingerprint feature collection, comparison, storage, and deletion. The liquid crystal display module is used to display information such as open door record, real-time clock and operation prompts, and forms a human-machine interface with the keyboard.

According to the system function, the software is mainly composed of a fingerprint processing module, a liquid crystal display module, a real-time clock module, and a keyboard scanning module. The fingerprint processing module is mainly responsible for the information processing of the command and return code between the microprocessor and the fingerprint identification module; the liquid crystal display module compiles the driver according to the timing of the liquid crystal display module to realize the purpose of displaying Chinese characters and characters; the real-time clock module is based on the clock Chip timing, write communication program. To achieve the clock chip read and write operations; keyboard scanning module is based on the keyboard design principles to write a keyboard program to identify whether there is no key action and press the key key.

According to the operation flow, the software is mainly composed of four parts: a fingerprint opening program, a fingerprint management program, a password management program, and a system setting program. Among the three parts of the fingerprint management, password management and system settings, only the administrator has this permission. The fingerprint management program comprises four parts: the fingerprint template program, the fingerprint template deletion program, the empty fingerprint template program, and the open door record program. The password management program consists of a password modification program and a password opening program. The system setting program is set by the date and time. The program consists of two parts.

Fingerprint recognition access control manufacturers can achieve without any wiring, wireless video intercom, real-time monitoring, automatic and manual photographing, outdoor and indoor multi-mode unlock (outdoor: fingerprint\password\remote control\mechanical key; indoor: indoor machine remote control Unlock) and other functions. Users can experience safer and more convenient security features.