汽车内部的手势控制集成

　　汽车内部的手势控制集成

　　近距离传感器已成为一个重要组成部分，触摸屏技术已迅速发展成为人机界面的选择，为广泛的电子产品，今天。今天的车辆也不例外，因为设计师们寻求创新的、安全的、有区别的方法来控制司机和乘客提供的扩展的仪表和功能。基于接近传感器的接口，顾名思义，并不总是需要物理接触，这在汽车应用中尤其有用。这项技术使姿态传感，特别是汽车人机界面（HMI）设计团队在汽车电子设备控制方面具有吸引力。

　　在人机界面设计方面，触摸控制、手势识别和可靠、精确的接近传感使基于中央控制台控制面板的更为一致的电子人机界面成为可能。因此，对机械控制开关的依赖性降低，对成本、可靠性、耐久性和功耗产生了相应的影响。此外，汽车制造商发现，比起传统的机械开关和转盘，消费者更喜欢触摸开关和滑块技术。

　　重要的是，接近传感器和它们的相关控制器现在已经成为支持汽车特定通信协议LIN和能，从而使它们更吸引汽车原始设备制造商和更容易集成在汽车电子系统中的其他。接近传感器与快速增长的新一代LED的室内环境照明的结合将是2012个中型模型的焦点。

　　Automotive OEM， Federal-Mogul， for example， has developed LED lighting that can be operated with a simple wave of the hand.² The technology is claimed to enhance safety as it keeps a driver’s eyes on the road. Additional benefits include greater durability and reliability， as mechanical switches are all but replaced， and lower power operation. In this case， capacitive switching technology is used to detect the proximity of the hand as it enters a pre-set field （between 0 and 80 mm）。 The switch is triggered by the conductivity of iron in the blood. With capacitive proximity sensors， the device operates even with a gloved hand， unlike systems using infrared technology， for example. The lighting control system can be enhanced by programming the sensor to recognize a sliding or tapping action to dim or change the color of the lights.

　　Other product examples combining LEDs and proximity sensors in even mid-range vehicles are emerging from a number of carmakers. These include their use in backlights for door handles and window openers， other compartment lighting such as map or vanity lights， and central dome lighting. Light intensity can be programmed to vary according to the proximity of the conductive object. Lighting color can also be user-programmable. Other non-lighting automotive applications for proximity sensors include keyless door unlocking， waking up instruments or screens， and parking aids.