CN203136029U - Vehicle-mounted infrared night vision imaging system - Google Patents
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Abstract
Description
技术领域 technical field
本实用新型涉及红外夜视成像技术领域，特别涉及一种车载红外夜视成像系统。 The utility model relates to the technical field of infrared night vision imaging, in particular to a vehicle-mounted infrared night vision imaging system.
背景技术 Background technique
据数据分析，夜间或阴天情况下驾驶所发生的交通事故尤为重要。据美国国家公路交通安全管理局（NHTSA）的统计，夜间行车比例在整个公路交通运输中只占四分之一，但发生的死亡事故却占了一半。因此提供夜间行车安全系数将有效提高汽车行驶安全性。为此，越来越多的汽车配备了夜间红外成像系统。所谓红外夜视成像技术就是在夜间或低亮度条件下，将不可见辐射（主要为红外线）加以转变或将微弱的夜天光增强，成为人眼可以感受的可见光的光电技术。常用的车载夜视技术有基于近红外线的主动红外夜视技术和基于远红外线的热成像技术。 According to data analysis, traffic accidents caused by driving at night or in cloudy conditions are particularly important. According to the U.S. National Highway Traffic Safety Administration (NHTSA) statistics, the proportion of driving at night only accounts for a quarter of the total road traffic, but the fatal accidents account for half. Therefore, providing the night driving safety factor will effectively improve the driving safety of the car. For this reason, more and more cars are equipped with night-time infrared imaging systems. The so-called infrared night vision imaging technology is a photoelectric technology that converts invisible radiation (mainly infrared) or enhances the weak night sky light into visible light that can be felt by the human eye at night or under low-brightness conditions. Commonly used vehicle-mounted night vision technologies include active infrared night vision technology based on near-infrared rays and thermal imaging technology based on far-infrared rays. the
热成像技术则是通过红外探测器，将其接收到的汽车夜间行驶道路前方的目标与背景的红外辐射映射成色阶值，转化为红外夜视图像的车载夜视方法。该方法主要利用夜间大部分环境物体自身温度相对较低，对外辐射的热量差异不大，形成的图像色阶较暗；而行人，动物，行驶中的汽车等自身温度较高的物体，对外辐射热量也大，形成的图像色阶较亮，因此，热成像技术具有目标与背景比较突出，探测距离较远，成像不受光线强弱的干扰等特点。然而对于温度比较低的目标（一般为无生命目标，如坑洼、立柱等）该技术则难以探测到，因此现有的车载夜视技术基本采用主动红外夜视技术。 Thermal imaging technology is a vehicle-mounted night vision method that uses infrared detectors to map the infrared radiation received by the target and the background of the car's night driving road into a color scale value and convert it into an infrared night vision image. This method mainly uses the relatively low temperature of most environmental objects at night, and the difference in the heat radiated to the outside is not large, and the color scale of the formed image is darker; while pedestrians, animals, moving cars and other objects with high temperature themselves have a relatively low external radiation. The heat is also large, and the color scale of the formed image is brighter. Therefore, thermal imaging technology has the characteristics of prominent target and background, long detection distance, and imaging is not disturbed by light intensity. However, it is difficult to detect targets with relatively low temperature (generally inanimate targets, such as potholes, pillars, etc.), so the existing vehicle night vision technology basically adopts active infrared night vision technology.
其中主动红外夜视技术是依靠红外探照灯发出的红外辐射照射汽车夜间行驶道路前方的目标（行人和道路上的物体）与背景（道路两旁的环境），由光学系统的物镜接收被目标与背景反射回来的红外辐射，并经红外探测器将其辐射通量转换成电信号，然后通过视频信号放大器，将其电信号转化为目标与背景的模拟或数字图像，来增大人眼夜间视觉效果。主动红外夜视成像原理与可见光成像原理相似，其不同在于成像的光线波长不同，因此，主动红外夜视图像具有图像清晰，对比度大，利于观察的特点。然而，由于其工作需要红外光源，因而其有效探测距离较短；易受光源强度、相同工作波长光线和有雾的恶劣天气条件影响。 Among them, the active infrared night vision technology relies on the infrared radiation emitted by infrared searchlights to illuminate the targets (pedestrians and objects on the road) and the background (environment on both sides of the road) in front of the car driving at night. The returned infrared radiation is converted into an electrical signal by the infrared detector, and then the electrical signal is converted into an analog or digital image of the target and the background through the video signal amplifier to increase the night vision effect of the human eye. The principle of active infrared night vision imaging is similar to that of visible light imaging. The difference is that the wavelength of light used for imaging is different. Therefore, active infrared night vision images have the characteristics of clear images, high contrast, and good observation. However, because its work requires an infrared light source, its effective detection distance is short; it is easily affected by the intensity of the light source, light of the same working wavelength, and foggy and adverse weather conditions.
发明内容 Contents of the invention
本实用新型的目的在于避免上述现有技术中的不足之处而提供一种探测距离较长、探测效果良好同时可有效探测各种目标的车载红外夜视成像系统。 The purpose of the utility model is to avoid the disadvantages of the above-mentioned prior art and provide a vehicle-mounted infrared night vision imaging system with a long detection distance, good detection effect and effective detection of various targets.
本实用新型的目的通过以下技术方案实现： The purpose of this utility model is achieved through the following technical solutions:
提供了一种车载红外夜视成像系统，包括红外成像系统、获取红外成像系统的采集信息并生成图像信息的图像采集卡、根据图像采集卡生成的图像信息显示图像的显示装置，所述图像显示装置的输入端连接图像采集卡的输出端，其特征在于：所述的红外成像系统包括主动红外成像系统和热红外成像系统，所述主动红外成像系统的输出端和热红外成像系统的输出端均与图像采集卡的输入端连接。 Provided is a vehicle-mounted infrared night vision imaging system, comprising an infrared imaging system, an image acquisition card for acquiring information collected by the infrared imaging system and generating image information, and a display device for displaying images based on the image information generated by the image acquisition card, the image display The input end of the device is connected to the output end of the image acquisition card, and it is characterized in that: the infrared imaging system includes an active infrared imaging system and a thermal infrared imaging system, and the output end of the active infrared imaging system and the output end of the thermal infrared imaging system Both are connected with the input end of the image acquisition card.
其中，所述主动红外成像系统包括向夜视区域发射红外线的红外发射器和接收反射回来的红外线的红外接收器，红外接收器根据接收的红外线信号向图像采集卡发送采集信息。 Wherein, the active infrared imaging system includes an infrared transmitter emitting infrared rays to the night vision area and an infrared receiver receiving reflected infrared rays, and the infrared receiver sends acquisition information to the image acquisition card according to the received infrared signals.
其中，所述的红外发射器设置于汽车的前大灯处。 Wherein, the infrared emitter is arranged at the headlight of the automobile.
其中，所述的红外接收器为CCD。 Wherein, the infrared receiver is a CCD.
其中，所述的热红外成像系统包括过滤并聚焦红外线的光学系统以及设置于光学系统的焦平面的热红外探测器，所述热红外探测器根据探测到的热红外信号向图像采集卡输送采集信息。 Wherein, the thermal infrared imaging system includes an optical system that filters and focuses infrared rays and a thermal infrared detector arranged on the focal plane of the optical system, and the thermal infrared detector transmits and collects images to the image acquisition card according to the detected thermal infrared signal. information.
其中，所述图像显示装置为设置于汽车仪表面板处的液晶显示器。 Wherein, the image display device is a liquid crystal display arranged on an automobile instrument panel.
本实用新型的有益效果：本实用型新的红外成像系统包括主动红外成像系统和热红外成像系统， 图像采集卡同时获取主动红外成像系统和热红外成像系统的采集信息进行处理，利用热红外成像系统可探测到较远距离的物体以及受外界干扰小的路道图像的采集信息，利用主动红外成像系统则可全面获得包括低温目标在内的前面的路道图像的采集信息，图像采集卡利用一定的加权分析策略将两个采集信息进行图像融合，即可获得一种探测距离较长、探测效果良好同时可有效探测各种目标的车载红外夜视成像系统。 Beneficial effects of the present utility model: the new infrared imaging system of the present utility model includes an active infrared imaging system and a thermal infrared imaging system. The system can detect objects at a relatively long distance and collect information of road images that are less disturbed by the outside world. The active infrared imaging system can fully obtain the collection information of road images in front including low-temperature targets. The image acquisition card uses A certain weighted analysis strategy combines the two collected information to obtain a vehicle-mounted infrared night vision imaging system with a long detection distance, good detection effect and effective detection of various targets.
附图说明 Description of drawings
利用附图对本实用新型作进一步说明，但附图中的实施例不构成对本实用新型的任何限制，对于本领域的普通技术人员，在不付出创造性劳动的前提下，还可以根据以下附图获得其它的附图。 Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.
图1为本实用新型一种车载红外夜视成像系统的实施例的结构示意图。 Fig. 1 is a structural schematic diagram of an embodiment of a vehicle-mounted infrared night vision imaging system of the present invention.
具体实施方式 Detailed ways
结合以下实施例对本实用新型作进一步描述。 The utility model is further described in conjunction with the following examples.
本实用新型一种车载红外夜视成像系统的具体实施方式，如图1所示，包括有：红外成像系统、获取红外成像系统的采集信息并生成图像信息的图像采集卡1、根据图像采集卡1生成的图像信息显示图像的显示装置2，所述图像的显示装置2的输入端连接图像采集卡1的输出端，其中，所述红外成像系统包括主动红外成像系统3和热红外成像系统4，所述主动红外成像系统3的输出端和热红外成像系统4的输出端均与图像采集卡1的输入端连接。
A specific embodiment of a vehicle-mounted infrared night vision imaging system of the present invention, as shown in Figure 1, includes: an infrared imaging system, an image acquisition card that obtains the acquisition information of the infrared imaging system and generates image information 1, according to the image acquisition card 1 The generated image information displays the
图像采集卡1同时获取主动红外成像系统3和热红外成像系统4的采集信息进行处理，利用热红外成像系统4可探测到较远距离的物体以及受外界干扰小的路道图像的采集信息，利用主动红外成像系统3则可全面获得包括低温目标在内的前面的路道图像的采集信息，图像采集卡1利用一定的加权分析策略将两个采集信息进行图像融合，即可获得一种探测距离较长、探测效果良好同时可有效探测各种目标的车载红外夜视成像系统。
The image acquisition card 1 simultaneously acquires the acquisition information of the active
其中，所述主动红外成像系统3包括向夜视区域发射红外线的红外发射器和接收反射回来的红外线的红外接收器，红外接收器根据接收的红外线信号向图像采集卡1发送采集信息。所述的红外发射器设置于汽车的前大灯处，所述的红外接收器为CCD。采用CCD作为接收器可有效的提高主动红外成像系统3的灵敏度和分辨率，同时降低噪音，当然根据实际需求也可以采用CMOS代替CCD。
Wherein, the active
其中，所述热红外成像系统4包括过滤并聚焦红外线的光学系统以及设置于光学系统的焦平面的热红外探测器，所述热红外探测器根据探测到的热红外信号向图像采集卡1输送采集信息。通过光学系统将红外线过滤并聚焦到热红外探测器上，实现对热红外信息的精确采集。 Wherein, the thermal infrared imaging system 4 includes an optical system for filtering and focusing infrared rays and a thermal infrared detector arranged on the focal plane of the optical system, and the thermal infrared detector transmits the thermal infrared signal to the image acquisition card 1 according to the detected thermal infrared signal. Collect information. The infrared rays are filtered and focused on the thermal infrared detector through the optical system to realize the accurate collection of thermal infrared information.
其中，所述图像的显示装置2为设置于汽车仪表面板处的液晶显示器。利用液晶显示可获得清晰的图像，当然根据车型以及驾驶习惯等因素也可以选择投影至挡风板等显示装置2。
Wherein, the
最后应当说明的是，以上实施例仅用以说明本实用新型的技术方案，而非对本实用新型保护范围的限制，尽管参照较佳实施例对本实用新型作了详细地说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的实质和范围。 Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496341A (en) * | 2013-10-10 | 2014-01-08 | 扬州瑞控汽车电子有限公司 | Vehicle-mounted infrared night-vision imaging system based on vehicle active safety |
| CN105635679A (en) * | 2015-12-30 | 2016-06-01 | 深圳市图雅丽特种技术有限公司 | Active anti-glare night vision system of vehicle-mounted special device and realization method |
| CN114026624A (en) * | 2019-07-03 | 2022-02-08 | 日立安斯泰莫株式会社 | Identifying objects by far infrared camera |
| CN120630227A (en) * | 2025-06-23 | 2025-09-12 | 北京邮电大学 | A target detection system for night vision and a night vision target detection method |
-
2013
- 2013-03-29 CN CN 201320152145 patent/CN203136029U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496341A (en) * | 2013-10-10 | 2014-01-08 | 扬州瑞控汽车电子有限公司 | Vehicle-mounted infrared night-vision imaging system based on vehicle active safety |
| CN105635679A (en) * | 2015-12-30 | 2016-06-01 | 深圳市图雅丽特种技术有限公司 | Active anti-glare night vision system of vehicle-mounted special device and realization method |
| CN114026624A (en) * | 2019-07-03 | 2022-02-08 | 日立安斯泰莫株式会社 | Identifying objects by far infrared camera |
| CN114026624B (en) * | 2019-07-03 | 2023-09-29 | 日立安斯泰莫株式会社 | Object recognition via far-infrared camera |
| CN120630227A (en) * | 2025-06-23 | 2025-09-12 | 北京邮电大学 | A target detection system for night vision and a night vision target detection method |
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