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雇佣彪形大汉或养狗来看守门户的时代早巳成为历史,完全靠人来保卫现代商业的安全也面临着越来越多的矛盾。新的微电子技术跻身于商业,成为安全护卫的主力。亚洲不少地区商业界都已涉及这种高技术,其中常见的有电子入门卡、闭路电视监控,热动传感和光电检测等。这些安全设施都与火警系统或能量控制系统连接,组成一个由计算机为控制中心的整体安全网络。当然,任何一种电子系统无论多么高级、多么完善,
The era of employing hilarious men or keeping dogs to guard the portal has long since become history, and relying solely on people to safeguard the security of modern commerce is also facing more and more contradictions. The new microelectronics technology is among the commercial and has become the main force of security guards. Many high-tech industries have been involved in the business community in many parts of Asia. Among them, electronic entry cards, closed-circuit television monitoring, thermal-motion sensing, and photoelectric detection are common. These security facilities are connected with the fire alarm system or energy control system to form an overall security network with the computer as the control center. Of course, no matter how advanced or perfect any kind of electronic system is,