阅读说明：本技术 一种红外目标探测平台及其探测方法 (Infrared target detection platform and detection method thereof ) 是由 关永峰 陈小天 黄营磊 丘程 刘申耀 韩建涛 李阳 秦江山 贺伟 贺遵亮 刘继旭 于 2019-12-20 设计创作，主要内容包括：本发明涉及红外探测技术领域,公开了一种红外目标探测平台及其探测方法,以提高探测的红外图像的清晰度,提高探测距离,降低探测成本；本发明的红外目标探测平台包括红外探测器,用于探测目标的红外图像信息；反射装置,用于在驱动机构的带动下进行间歇运动以扩展红外探测器的水平成像视角；驱动机构,用于根据运动曲线信息带动反射装置在预设的第一位置和第二位置之间进行间歇运动,其中,第一位置和第二位置之间设有若干个凝视位置；控制器,用于产生运动曲线信息,将运动曲线信息发送至驱动机构；信息处理器,用于接收红外图像信息,根据红外图像信息生成全景图；还用于根据相邻时刻的全景图对目标进行检测和分析,以获取目标的运动轨迹。(The invention relates to the technical field of infrared detection, and discloses an infrared target detection platform and a detection method thereof, which are used for improving the definition of a detected infrared image, improving the detection distance and reducing the detection cost; the infrared target detection platform comprises an infrared detector, a target detection module and a target detection module, wherein the infrared detector is used for detecting infrared image information of a target; the reflecting device is used for carrying out intermittent motion under the driving of the driving mechanism so as to expand the horizontal imaging visual angle of the infrared detector; the driving mechanism is used for driving the reflecting device to perform intermittent motion between a preset first position and a preset second position according to the motion curve information, wherein a plurality of gaze positions are arranged between the first position and the second position; the controller is used for generating motion curve information and sending the motion curve information to the driving mechanism; the information processor is used for receiving the infrared image information and generating a panoramic image according to the infrared image information; and the system is also used for detecting and analyzing the target according to the panoramic images at the adjacent moments so as to obtain the motion trail of the target.)

1. An infrared target detection platform, comprising:

the infrared detector is used for detecting infrared image information of the target;

the reflecting device is driven by the driving mechanism to perform intermittent motion so as to expand the horizontal imaging visual angle of the infrared detector;

the driving mechanism is used for driving the reflecting device to perform intermittent motion between a preset first position and a preset second position according to the motion curve information, wherein a plurality of gaze positions are arranged between the first position and the second position;

the controller is used for generating the motion curve information and sending the motion curve information to the driving mechanism;

the information processor is used for receiving the infrared image information and generating a panoramic image according to the infrared image information; the panoramic image acquisition system is also used for detecting and analyzing the target according to the panoramic images at the adjacent moments so as to acquire the motion trail of the target;

the infrared detector and the mirror surface of the reflection device are arranged at an angle, the reflection device and the driving mechanism are coaxially installed, the controller is in communication connection with the driving mechanism, and the information processor is connected with the infrared detector.

2. The infrared target detection platform of claim 1, further comprising: and the damping device is coaxially arranged with the driving mechanism and is used for increasing the rotating friction force of the driving mechanism.

3. The infrared target detection platform of claim 2, wherein the damping device comprises a damping shaft, a collar and a spacer disposed on the damping shaft, and the damping shaft is coupled to the shaft of the drive mechanism.

4. The infrared target detection platform as claimed in claim 1, further comprising a focusing structure with an opening at an outer side, wherein the focusing structure is sleeved on the infrared detector for adjusting the focal length of the infrared detector.

5. The infrared target detection platform of claim 1, characterized in that the reflection means comprises a mirror, a bracket connected to the mirror, and a coupling connected to the bracket through a bearing, the coupling being connected to a shaft of the driving mechanism.

6. A detection method applied to the infrared target detection platform of any one of the claims 1 to 5, characterized by comprising the following steps:

the controller generates motion curve information and sends the motion curve information to the driving mechanism;

the driving mechanism drives the reflecting device to intermittently move at a preset first position and a preset second position according to the motion curve information; wherein a plurality of gaze locations are provided between the first location and the second location;

the reflecting device is driven by the driving mechanism to perform intermittent motion so as to expand the horizontal imaging visual angle of the infrared detector;

the infrared detector detects infrared image information of a target, the infrared image information is fed back to the information processor, the information processor generates a panoramic image according to the infrared image information, and the target is detected and analyzed according to the panoramic images at adjacent moments so as to obtain the motion trail of the target.

7. The method of claim 6, wherein said infrared target detection platform further comprises a damping device, said driving mechanism moving said reflective device intermittently between a first predetermined position and a second predetermined position to create a gaze field at each of said gaze positions, said damping device increasing rotational friction of said driving mechanism at each gaze field position.

8. The detection method of claim 7, wherein the information processor generating the panorama from the infrared image information comprises:

preprocessing infrared image information by adopting a linear stretching method to obtain an initial image of each staring view field;

splicing each initial image to obtain a panoramic image;

and acquiring two panoramic pictures at adjacent moments, and performing difference calculation according to the image frames of the two panoramic pictures to acquire the motion trail of the target.

Technical Field

The invention relates to the technical field of infrared detection, in particular to an infrared target detection platform and a detection method thereof.

Background

The infrared detector can realize effective detection of day and night targets, technical means such as splicing of multiple detectors, detector motion despinning, detector stepping staring and the like are generally adopted for realizing large-visual-angle and long-distance target detection, and due to the fact that the technical means have great technical difficulty, the infrared detector is high in price, and the mechanical structure and control algorithm of the despinning and stepping staring technology are complex, the product technology adopting the technical means is high in price, so that products are difficult to popularize and apply in the civil market, the definition of infrared images obtained by the method is insufficient, and the detection distance is limited.

Disclosure of Invention

The invention aims to provide an infrared target detection platform and a detection method thereof, which are used for improving the definition of a detected infrared image, improving the detection distance and reducing the detection cost.

In order to achieve the above object, the present invention provides an infrared target detection platform, comprising:

the infrared detector is used for detecting infrared image information of the target;

the reflecting device is driven by the driving mechanism to perform intermittent motion so as to expand the horizontal imaging visual angle of the infrared detector;

the driving mechanism is used for driving the reflecting device to perform intermittent motion between a preset first position and a preset second position according to the motion curve information, wherein a plurality of gaze positions are arranged between the first position and the second position;

the controller is used for generating the motion curve information and sending the motion curve information to the driving mechanism;

the information processor is used for receiving the infrared image information and generating a panoramic image according to the infrared image information; the panoramic image acquisition system is also used for detecting and analyzing the target according to the panoramic images at the adjacent moments so as to acquire the motion trail of the target;

the infrared detector and the mirror surface of the reflection device are arranged at an angle, the reflection device and the driving mechanism are coaxially installed, the controller is in communication connection with the driving mechanism, and the information processor is connected with the infrared detector.

Preferably, the method further comprises the following steps: and the damping device is coaxially arranged with the driving mechanism and is used for increasing the rotating friction force of the driving mechanism.

Preferably, the damping device comprises a damping shaft, a ferrule and a gasket which are arranged on the damping shaft, and the damping shaft is connected with the shaft of the driving mechanism.

Preferably, the focusing device further comprises a focusing structure with an opening at the outer side, and the focusing structure is sleeved on the infrared detector and used for adjusting the focal length of the infrared detector.

Preferably, the reflecting device comprises a reflecting mirror, a bracket connected with the reflecting mirror and a coupler connected with the bracket through a bearing, wherein the coupler is connected with a shaft of the driving mechanism.

As a general inventive concept, the present invention also provides a detection method applied to the above infrared target detection platform, including:

the controller generates motion curve information and sends the motion curve information to the driving mechanism;

the driving mechanism drives the reflecting device to intermittently move at a preset first position and a preset second position according to the motion curve information; wherein a plurality of gaze locations are provided between the first location and the second location;

the reflecting device is driven by the driving mechanism to perform intermittent motion so as to expand the horizontal imaging visual angle of the infrared detector;

the infrared detector detects infrared image information of a target, the infrared image information is fed back to the information processor, the information processor generates a panoramic image according to the infrared image information, and the target is detected and analyzed according to the panoramic images at adjacent moments so as to obtain the motion trail of the target.

Preferably, the infrared target detection platform further comprises a damping device, the driving mechanism drives the reflection device to form a gaze field at each gaze position in the process of intermittent movement at the preset first position and the preset second position, and the damping device increases the rotation friction force of the driving mechanism stopping at each gaze field position.

Preferably, the information processor generating the panorama from the infrared image information includes:

preprocessing infrared image information by adopting a linear stretching method to obtain an initial image of each staring view field;

splicing each initial image to obtain a panoramic image;

and acquiring two panoramic pictures at adjacent moments, and performing difference calculation according to the image frames of the two panoramic pictures to acquire the motion trail of the target.

The invention has the following beneficial effects:

according to the infrared target detection platform and the detection method thereof, the infrared target detection platform drives the reflection device to move intermittently from the preset first position to the preset second position through the driving mechanism, wherein a plurality of gaze positions are arranged between the first position and the second position, the horizontal imaging visual angle of the infrared detector can be expanded, the infrared target detection with a large visual field and a long distance is realized through the cooperation of the infrared detector and the reflection device, and the detection cost is reduced.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a hardware block diagram of an infrared target detection platform in accordance with a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of a damping device according to a preferred embodiment of the present invention;

FIG. 3 is a flow chart of a probing method in accordance with a preferred embodiment of the present invention;

FIG. 4 is a schematic diagram of the control pulse division ratio of the preferred embodiment of the present invention;

FIG. 5 is a schematic diagram of the motion control timing sequence of the preferred embodiment of the present invention;

fig. 6 is a view of the gaze field of a preferred embodiment of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

According to the infrared target detection platform and the detection method thereof, the maximum horizontal field angle exceeds 90 degrees, the detection distance to people can exceed 500 meters, the detection distance to vehicles can reach 1000 meters, and the imaging frame frequency can reach 2 Hz. The technology greatly reduces the production price of products, and can be widely applied to protection of sensitive areas such as military camps, prisons, power stations, dams, water treatment stations, solar power plants, wind power plants, oil fields, oil depots, ammunition depots, data centers and the like.

It should be noted that configuration parameters of a detector adopted by the platform, target detection parameters, target identification parameters, an area of interest, and the like need to be set according to weather conditions and target characteristics.