中文摘要：

针对传统汽车钥匙多按键操作模式以及控制对象单一等特点,在汽车智能主控系统的基础上,提出并设计一种低功耗蓝牙通信技术的汽车智能钥匙控制系统。采用16位飞思卡尔MC9S12XS128作为主控制器,在汽车被动式进入与启动（CAPE）模块中添加低功耗蓝牙通信模块,与智能手机和汽车钥匙进行无线通信,并完成了由CC2541芯片作为控制器的汽车钥匙系统,通过重力加速度传感器CMA3000识别手势,控制汽车门锁开关、车窗升降等功能。最后,搭建模拟实验平台,对系统主要性能和功能进行测试验证,实验表明,该系统具有安全性高、性能稳定、智能化、使用方便等特点。

英文摘要：

In view of the characteristics of multi-button and single object control of the traditional cars key,a car intelligent key control system with low-power consumption bluetooth communication technology was designed based on car intelligent master control system. 16-bit Freescale MC9S12XS128 is adopted as host controller. The low-power bluetooth communication module is added into CAPE module to achieve wireless communication between smart phone and key,and complete the car key system taking CC2541 chip as controller. The gravitational acceleration sensor is adopted to identify gestures and control door switch,windows lift,etc. A simulation experiment platform was established to the main performances and functions. The experiment results show that the system has the characteristics of high safety,stable performance,intelligence,convenient use,etc.