汽車(chē)內(nèi)部的手勢(shì)控制集成

　　近距離傳感器已成為一個(gè)重要組成部分，觸摸屏技術(shù)已迅速發(fā)展成為人機(jī)界面的選擇，為廣泛的電子產(chǎn)品，今天。今天的車(chē)輛也不例外，因?yàn)樵O(shè)計(jì)師們尋求創(chuàng)新的、安全的、有區(qū)別的方法來(lái)控制司機(jī)和乘客提供的擴(kuò)展的儀表和功能。基于接近傳感器的接口，顧名思義，并不總是需要物理接觸，這在汽車(chē)應(yīng)用中尤其有用。這項(xiàng)技術(shù)使姿態(tài)傳感，特別是汽車(chē)人機(jī)界面（HMI）設(shè)計(jì)團(tuán)隊(duì)在汽車(chē)電子設(shè)備控制方面具有吸引力。

　　在人機(jī)界面設(shè)計(jì)方面，觸摸控制、手勢(shì)識(shí)別和可靠、精確的接近傳感使基于中央控制臺(tái)控制面板的更為一致的電子人機(jī)界面成為可能。因此，對(duì)機(jī)械控制開(kāi)關(guān)的依賴(lài)性降低，對(duì)成本、可靠性、耐久性和功耗產(chǎn)生了相應(yīng)的影響。此外，汽車(chē)制造商發(fā)現(xiàn)，比起傳統(tǒng)的機(jī)械開(kāi)關(guān)和轉(zhuǎn)盤(pán)，消費(fèi)者更喜歡觸摸開(kāi)關(guān)和滑塊技術(shù)。

　　重要的是，接近傳感器和它們的相關(guān)控制器現(xiàn)在已經(jīng)成為支持汽車(chē)特定通信協(xié)議LIN和能，從而使它們更吸引汽車(chē)原始設(shè)備制造商和更容易集成在汽車(chē)電子系統(tǒng)中的其他。接近傳感器與快速增長(zhǎng)的新一代LED的室內(nèi)環(huán)境照明的結(jié)合將是2012個(gè)中型模型的焦點(diǎn)。

　　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.