In order to construct low - priced , reliable intelligent network in the uptown , to meet the demands of safety and information management in the intelligent uptown , i studied the fieldbus technology and one of its solutions ? can technology . base on our country condition of intelligent building system and development tendency in the future , i made a suggestion on technical precept of can + rs485 double deck bottom network , to design a intelligent network model of uptown safety , field measurement and signal transmission . this model is base on can technology 为了构建低廉、可靠的住宅小区智能化网络，实现智能小区安全防范、信息采集的要求，本人对现场总线技术和它的一种解决方案? can网络技术进行了研究，并针对我国目前小区智能化系统的现状及未来的发展趋势，提出了“ can + rs485 ”双底层网络的技术方案，设计实现了小区安全报警和多表的现场计量与远程传输的智能网络模型。
Studies the time - safety model of steering vehicle and the representation of steering rules , this thesis presents a domain knowledge representation of target - rule radix - feature state body . besides these , a vehicle safety expert system consisting of master - slave reasoning mechanism is designed which can alarm while encountering emergency 本文研究了汽车行驶的时间安全模型和汽车行驶规则描述，提出了“目标-规则基-特征状态体”的领域知识表示模型，给出一种汽车安全报警防撞专家系统，采用主-从两级推理机制完成对安全的推理求解策略，实现安全报警。
All guest rooms are equipped with advanced locking systems , an integrated power supply , sound proof doors and a personal security alert button in the bathroom . individual controls for the heating and cooling system , international satellite television channels , idd telephone system with bathroom extension , hair dryer , large bath , shower cubicle , mini bar , electric kettle , complimentary tea and coffee , electronic safe , large desk and high speed internet access are standard 所有客房均配置高级安全门锁房间电源指示灯房门隔音条洗手间sos安全报警系统独立控制的冷暖空调设备国际卫星频道国际直拨电话浴室电话分机风筒大型浴缸及分离式淋浴间迷你吧电热水器及客房免费咖啡茶电子保险箱大型书桌，并提供10m光纤高速的电脑上网设备。
This thesis studies the time - safety model of steering vehicle and the representation of steering rules and presents a domain knowledge representation of target - rule radix - feature state body . besides these , a vehicle safety expert system consisting of master - slave reasoning mechanism is designed which can alarm while encountering emergency 本文研究了汽车行驶的时间安全模型和汽车行驶规则描述，提出了“目标-规则基-特征状态体”的领域知识表示模型，给出一种汽车安全报警防撞专家系统，采用主-从两级推理机制完成对安全的推理求解策略，实现安全报警。
