实验室门禁管理系统由门控制器、区控制器、中央控制器及上层软件组成。

This laboratory management system of entrance guard is composed of door controller, area controller, central controller and upper software.

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所有大门控制器不断连接中央服务器，并且任何的离线控制器会通过电子邮件提醒管理员。

All door controllers are in continual contact with the central server, and any offline controller alerts the manager via email.

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所有大门控制器不断连接中央服务器，并且任何的离线控制器会通过电子邮件提醒管理员。

All door controllers are in continual contact with the central server, and any offline controller alerts the manager via email.

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