Thermoelectric infrared imager and automotive applications
Thermoelectric infrared imager and automotive applications
复制标题
热电红外成像仪和汽车应用
DOI：
10.1117/12.445299
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
M. Uchiyama
中科院分区：
文献类型：
--
作者：
Masaki Hirota;Fuminori Satou;M. Saito;Youichi Kishi;Y. Nakajima;M. Uchiyama
本文介绍了一种新开发的热电红外成像仪，具有 48 X 32 元件热电焦平面阵列 (FPA) 和具有盲点行人警告系统的实验车辆，该系统采用四个红外成像仪。该成像仪的尺寸为100毫米宽、60毫米高、80毫米深，重400克，整体视场（FOV）为40度X 20度。成像仪的功耗为3W。行人检测程序存储在印刷电路板（PCB）上的CPU芯片中。 FPA 提供 2,100 V/W 的高响应度、25 毫秒的时间常数和低成本潜力。每个元件的外部尺寸为 190 μm x 190 μm，由六对热电偶和一个通过低压蒸发和剥离技术精确图案化的金黑吸收器组成。该实验车被称为日产 ASV-2（高级安全车-2），它采用了旨在减少交通事故的多种集成技术。盲点行人警告系统通过检测人身体发出的红外辐射来提醒驾驶员盲点中是否存在行人。该系统还可以防止车辆朝行人方向行驶。
This paper describes a newly developed thermoelectric infrared imager having a 48 X 32 element thermoelectric focal plane array (FPA) and an experimental vehicle featuring a blind spot pedestrian warning system, which employs four infrared imagers. The imager measures 100 mm in width, 60 mm in height and 80 mm in depth, weighs 400 g, and has an overall field of view (FOV) of 40 deg X 20 deg. The power consumption of the imager is 3 W. The pedestrian detection program is stored in a CPU chip on a printed circuit board (PCB). The FPA provides high responsivity of 2,100 V/W, a time constant of 25 msec, and a low cost potential. Each element has external dimensions of 190 μm x 190 μm, and consists of six pairs of thermocouples and an Au-black absorber that is precisely patterned by low-pressure evaporation and lift-off technologies. The experimental vehicle is called the Nissan ASV-2 (Advanced Safety Vehicle-2), which incorporates a wide range of integrated technologies aimed at reducing traffic accidents. The blind spot pedestrian warning system alerts the driver to the presence of a pedestrian in a blind spot by detecting the infrared radiation emitted from the person's body. This system also prevents the vehicle from moving in the direction of the pedestrian.