摘要
针对现有电警棍在执行任务中容易被不法分子抢夺后伤及执勤人员这一不安全问题,采用指纹识别技术对现有电警棍进行了改进。PIC单片机分别与指纹传感器FPS200和存储器SST39SF040构成指纹采集模块和指纹数据存储模块。无线遥控发射与接收模块对预存指纹数据进行清除。指纹图像经传感器采集后进行图像分割、滤波与增强、二值化和细化预处理,并提取指纹特征进行预存或对比。系统的合理设计保证了电警棍在执勤中使用可靠。
Current electric batons were improved with the fingerprint identification technology aiming at the unsafe problem that the electric baton is easily snatched by lawbreakers and injures soldiers on duty while the electric baton is in implementation mission.The module of fingerprint acquisition is composed of single chip microcomputer （PIC） and fingerprint sensor （FPS200）.The module of fingerprint data storage is composed of PIC and memory （SST39SF040）.The module of wireless telecontrol transmitting and receiving may eliminate presorting fingerprint data.The fingerprint image is acquired by the fingerprint sensor,then segmented,filtered,enhanced,binarily converted and thinned by the program.The fingerprint characteristic is extracted prestored and intercompared.The system＇s reasonable design ensures that the electric baton is reliably used in implementation mission.
出处
《微计算机信息》
2010年第14期21-22,41,共3页
Control & Automation
关键词
电警棍
指纹识别
单片机
电路原理
electric baton
fingerprint identification
single chip microcomputer
schematic circuit
