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指纹门禁机 我有新说法
196 1

  出入口门禁安全管理系统是新型现代化安全管理系统,它集微机自动识别技术和现代安全管理措施为一体,它涉及电子,机械,光学,计算机技术,通讯技术,生物技术等诸多新技术。它是解决重要部门出入口实现安全防范管理的有效措施。适用各种机要部门,如银行、宾馆、机房、军械库、机要室、办公间、智能化小区、工厂等。 在数字技术网络技术飞速发展的今天门禁技术得到了迅猛的发展。

1指纹门禁

  指纹门禁机是在出入口处安装指纹门禁机,通过指纹验证来对人员的进出实施放行、拒绝、记录等操作的智能化管理系统,作为大门门禁控制、智能楼宇系统、高安全性出入口管理等场所的安全出入控制,其目的是为了有效的控制人员的出入,并且记录所有进出的详细情况,实现对出入口的安全管理。指纹门禁机是利用人体生物特征指纹来进行身份安全识别,具有不可替代,和性的特点。

  指纹门禁机以手指取代传统的钥匙,使用时只需将手指平放在指纹采集仪的采集窗口上,即可完成开锁任务,操作十分简便,避免了其它门禁系统(传统机械锁、密码锁、识别卡等)有可能被伪造、盗用、遗忘、破译等弊端。

  指纹门禁系统的硬件主要由微处理器、指纹识别模块、液晶显示模块、键盘、实时时钟/日历芯片、电控锁和电源等组成。微处理器作为系统的上位机,控制整个系统。指纹识别模块主要完成指纹特征的采集、比对、存储、删除等功能。液晶显示模块用于显示开门记录、实时时钟和操作提示等信息,和键盘一起组成人机界面。

  按系统功能,软件主要由指纹处理模块、液晶显示模块、实时时钟模块和键盘扫描模块等组成。指纹处理模块主要负责微处理器与指纹识别模块之间命令和返回代码的信息处理;液晶显示模块根据液晶显示模块的时序,编写驱动程序,以实现显示汉字、字符的目的;实时时钟模块根据时钟芯片的时序,编写通讯程序.实现对时钟芯片的读写操作;键盘扫描模块就是根据键盘的设计原理 编写键盘程序来识别有无按键动作和按下键的键号。

  按操作流程,软件主要由指纹开门程序、指纹管理程序、密码管理程序和系统设置程序四部分组成。其中指纹管理、密码管理和系统设置三部分只有管理员才有此权限。指纹管理程序由登记指纹模板程序、删除指纹模板程序、清空指纹模板程序和浏览开门记录程序四部分组成;密码管理程序由密码修改程序和密码开门程序两部分组成;系统设置程序由时间设置程序和日期设置程序两部分组成。

2扩展知识

  门禁分为:门禁读头、门禁控制器和门禁一体机。

  门禁读头的概念就是:它只是一个前段的识别部分,例如刷卡的门禁,知识当有人在刷卡后他将这个卡号传输给后端的控制器,由后端的控制器进行判断信息是否正确,是否可以发出开门指令。同时门的电锁、报警器等等这些设备也是全部都接在门禁控制器上面。所以门禁读头+门禁控制器才可以组成一个完整的门禁系统。

  门禁一体机的概念就是:它可以独立完成一套门禁的所有功能,集合了前段识别及后台比对的过程。登记、识别、验证以及发出开门指令全部是一台机器上面完成。门的电锁以及报警部分也全部接在门禁主机上面。同时门禁一体机也是可以作为读头,接入控制器,由控制器来控制开门。

3识别方式

  目前考勤和门禁主机设备在识别这块基本一致,市面上主流的分为以下几类:

  一:指纹考勤:这个就是大家目前用的多的方式,有点在于识别效果好,速度快,但是存在部分人员无法使用的状况。

  二:ID卡考勤:目前还是有很多的客户都是在使用ID卡来考勤,好处速度非常快,并且可以在公司组成一卡通的模式,但是存在于员工代打卡的现象。

  四:人脸识别考勤机:目前这个设备的也是近两年国内才开始普及的,好处的身份识别的性,但是存在于对使用环境的限制,不能在户外光照度过高的地区以及不能在户外使用。

  五:虹膜识别:目前虹膜识别的设备主要是韩国、美国的厂家有生产,目前国内生产虹膜的厂家较少。此类设备成本过高,非安全级别要求较高的地方很少使用。

  六:指静脉识别:用于鉴别人体静脉血管的方式,可以*杜绝假手指,属于活体验证的设备,目前主要是日本厂家生产居多,国内有个别厂家生产。但是设备识别速度较慢,不适合大规模人群使用。

参考资料

参考资料编辑区域


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