阅读说明：本技术 一种红外探测设备的性能检测方法、系统及设备 (Performance detection method, system and equipment of infrared detection equipment ) 是由 李平 梁国栋 于 2020-05-12 设计创作，主要内容包括：本发明涉及红外识别技术领域,提供一种红外探测设备的性能检测方法、系统及设备,通过设置模拟目标并建立接近测试用例、移动测试用例,以测试样机上的红外感应条为原点建立测试坐标系,从而能够对测试样机发出的红外信息进行有效地处理分析,进而得到对测试样机红外感应区域的有效识别以及识别准确度、灵敏度的精准判断,这不仅实现了对车载红外探测设备测试项目的全面测试,还通过对采集数据的高精度计算实现了性能测试结果的自动化输出,达到了测试过程高度自动化,大幅度地提高了设备的测试效率与测试精度。本发明还通过模拟多种不同反射系数的目标,囊括了更多不同的目标识别情况,使得测试数据更为完整、测试结果更为全面。(The invention relates to the technical field of infrared identification, and provides a performance detection method, a system and equipment of infrared detection equipment. The invention also covers more different target identification conditions by simulating a plurality of targets with different reflection coefficients, so that the test data is more complete and the test result is more comprehensive.)

1. A performance detection method of infrared detection equipment is characterized by comprising the following steps:

establishing a test coordinate system by taking an infrared induction strip on a test prototype as an original point, and determining test points close to the test and the mobile test in the test coordinate system;

the test point based on the proximity test adopts a simulation target to perform the proximity test according to a preset proximity test case, the test point based on the mobile test adopts the simulation target to perform the mobile test according to a preset mobile test case, and the infrared information received by the test prototype in the proximity test and the mobile test is recorded;

and integrating the received infrared information and outputting the performance data of the test prototype.

2. The method for detecting the performance of an infrared detection device according to claim 1,

the test coordinate system takes an infrared induction strip on the test prototype as an original point O, takes a straight line parallel to the length and the width of the test prototype as a Y axis and an X axis, and takes a direction vertical to a panel of the test prototype and irradiating an object as a Z axis;

determining the test point of the proximity test specifically as follows:

scanning an XOY plane of the test prototype, and dividing the length and the width of the test prototype into m equal parts and n equal parts respectively to obtain m x n test points;

determining the test point of the mobile test specifically as follows:

and selecting at least ten points which must be in the infrared induction area of the test prototype as test points.

3. The method for detecting the performance of the infrared detection device according to claim 2, wherein the test point based on the proximity test performs the proximity test by using a simulation target according to a preset proximity test case, specifically:

driving the simulation target to step on a Z axis at a preset speed at each test point of the approach test according to a preset test step width until the test prototype receives or cannot receive the infrared information, and recording the current space test coordinate of the simulation target;

the step of outputting the performance data of the test prototype according to the integrated received infrared information specifically comprises the following steps:

and determining the infrared induction area of the test prototype according to all the recorded space test coordinates.

4. The method for detecting the performance of the infrared detection device according to claim 2, wherein the test point based on the mobile test performs the mobile test by using the simulation target according to a preset mobile test case, specifically:

moving the simulation target left and right for each preset number of times at each test point of the mobile test at least four different speeds, and capturing all infrared information received in the mobile process by the test prototype;

the step of outputting the performance data of the test prototype according to the integrated received infrared information specifically comprises the following steps:

and calculating the slow rising rate or slow falling rate and rising angle or falling angle of the infrared energy data according to all the received infrared information, recording the corresponding trigger rate, obtaining a detection identification result, and further obtaining the accuracy data and sensitivity data of the test prototype.

5. The method of claim 4, wherein the method comprises the steps of: the four different speeds include 20mm/sec, 40mm/sec, 60mm/sec, 100 mm/sec; the preset times are not less than 10.

6. The method for detecting the performance of the infrared detection device as set forth in claim 1, wherein: the test prototype is an on-vehicle central control display screen integrated with infrared detection equipment, and the infrared induction strip is arranged in the infrared detection equipment.

7. The method of claim 6, further comprising: and changing the reflection coefficient of the simulation target, and performing the proximity test and the movement test again.

8. The performance detection system of the infrared detection equipment comprises a test prototype, and is characterized in that: the simulation system also comprises a main control module and a driving assembly which are electrically connected, and a simulation target fixed on the driving assembly;

the test prototype is used for emitting infrared radiation to the infrared interested area;

the main control module is used for controlling the driving assembly to reach a corresponding test point according to a preset proximity test case and a preset mobile test case;

the driving component is used for responding to the driving of the main control module;

the simulation target is used for simulating a detected target, responding to the infrared radiation and reflecting infrared information;

the test prototype is also used for acquiring the infrared information;

the main control module is also in data connection with the test prototype and is used for receiving and calculating the infrared information acquired by the test prototype, further determining the infrared sensing area of the test prototype, calculating the slow rising rate or slow falling rate and rising angle or falling angle of the infrared energy data so as to judge whether the simulation target moves or not, and further obtaining the accuracy data and sensitivity data of the test prototype.

9. The system for detecting the performance of an infrared detection device as set forth in claim 8, wherein:

the driving assembly comprises a power device and a conveying track mechanism; the power device comprises a servo motor; the conveying track mechanism comprises an X-axis conveying track, a Y-axis conveying track and a Z-axis conveying track which are combined and connected to form a space moving structure;

the simulation target comprises at least two test components with different reflection coefficients, and each test component comprises a simulation manipulator;

the test prototype is an on-vehicle central control display screen integrated with infrared detection equipment, and the infrared induction strip is arranged in the infrared detection equipment.

10. A performance detection device of infrared detection equipment, its characterized in that: a performance testing system comprising at least one infrared detection device as claimed in any one of claims 8 to 9, or a performance testing method for operating an infrared detection device as claimed in any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of infrared identification, in particular to a performance detection method, system and device of infrared detection equipment.

Background

An Infrared Detector (Infrared Detector) is a device that converts an incident Infrared radiation signal into an electrical signal and outputs the electrical signal. The technology for detecting invisible infrared radiation and converting the invisible infrared radiation into a measurable signal is the application of the infrared detection technology, and has the following advantages:

1) because the infrared radiation characteristic formed by the temperature difference between the target and the background and the difference of the emission rate is utilized for detection, the environmental adaptability and the capability of identifying the camouflage target are superior to those of visible light, especially the working capability at night and in severe weather;

2) the concealment is good, and the signal of the target is passively received, so that the target is safer and more confidential than radar and laser detection, and is not easily interfered;

3) compared with a radar system, the infrared detection system has the advantages of smaller volume, lighter weight and lower power consumption.

For example, in the patent application No. CN201810683780.2, "infrared focal plane detector multi-core testing apparatus and testing method", different combinations of radiation source temperature and interface board environment temperature are achieved by controlling the radiation source temperature and temperature control board temperature, so that the influence of temperature on the whole testing system and final testing parameters can be accurately reflected, and a plurality of detectors can be tested at one time, thereby improving the testing efficiency.

However, when the infrared region identification function device integrated on the vehicle-mounted system (i.e., the infrared detection device is integrated in the vehicle-mounted central control display screen) is subjected to factory inspection, complicated and tedious test contents such as infrared sensing region scanning, left-right movement identification, blind area approach identification and the like are added, so that the test period is long, and the test cost is high. And because the infrared region identification function equipment is integrated in the vehicle-mounted central control display screen, independent testing cannot be carried out, and the method for testing a plurality of detectors at one time is not suitable for the method provided by the patent. Nowadays, a testing technology which comprehensively covers the testing content is still blank in the field, so that comprehensive testing can not be effectively carried out on vehicle-mounted infrared area identification equipment, if manual testing is adopted, the testing requirement and precision can not be met, collected data can not be effectively stored and analyzed, and the testing efficiency can not be improved due to the limitation of manpower.

Disclosure of Invention

The invention provides a performance detection method, a system and equipment of infrared detection equipment, and solves the technical problems that the existing test means cannot completely cover all test contents of a vehicle-mounted infrared detector, and manual test is adopted, so that the accuracy is low, the data analysis capability is poor and the test efficiency is low.

In order to solve the above technical problems, the present invention provides a performance detection method for an infrared detection device, comprising:

establishing a test coordinate system by taking an infrared induction strip on a test prototype as an original point, and determining test points close to the test and the mobile test in the test coordinate system;

the test point based on the proximity test adopts a simulation target to perform the proximity test according to a preset proximity test case, the test point based on the mobile test adopts the simulation target to perform the mobile test according to a preset mobile test case, and the infrared information received by the test prototype in the proximity test and the mobile test is recorded;

and integrating the received infrared information and outputting the performance data of the test prototype.

And changing the reflection coefficient of the simulation target, and performing the proximity test and the movement test again.

According to the basic scheme, the simulation target is set, the approach test case and the mobile test case are established, so that infrared information sent by the test prototype can be effectively processed and analyzed, effective identification of an infrared induction area of the test prototype and accurate judgment of identification accuracy and sensitivity are further obtained, comprehensive testing of a vehicle-mounted infrared detection equipment test project is achieved, automatic output of a performance test result is achieved through high-precision calculation of collected data, high automation of a test process is achieved, and test efficiency and test precision of the equipment are greatly improved. The basic scheme also includes more different target identification conditions by simulating a plurality of targets with different reflection coefficients, so that the test data is more complete and the test result is more comprehensive.

In a further embodiment, the test coordinate system takes an infrared induction strip on the test prototype as an original point O, takes straight lines parallel to the length and the width of the test prototype as a Y axis and an X axis, and takes a direction perpendicular to a panel of the test prototype and facing an object as a Z axis;

determining the test point of the proximity test specifically as follows:

and scanning an XOY plane of the test prototype, and dividing the length and the width of the test prototype into m equal parts and n equal parts respectively to obtain m x n test points.

According to the invention, m × n test points are uniformly selected by scanning the XOY plane of the test prototype, so that the comprehensive coverage of the infrared detection direction of the whole test prototype is realized.

Determining the test point of the mobile test specifically as follows:

and selecting at least ten points which must be in the infrared induction area of the test prototype as test points.

According to the scheme, the test point sampling and selecting method is adopted to select the plurality of test points in the infrared induction area determined by the proximity test, so that the test is more accurate and complete, and the test workload is greatly reduced.

In a further embodiment, the test point based on the proximity test performs the proximity test by using a simulation target according to a preset proximity test case, specifically:

driving the simulation target to step on a Z axis at a preset speed at each test point of the approach test according to a preset test step width until the test prototype receives or cannot receive the infrared information, and recording the current space test coordinate of the simulation target;

the step of outputting the performance data of the test prototype according to the integrated received infrared information specifically comprises the following steps:

and determining the infrared induction area of the test prototype according to all the recorded space test coordinates.

According to the scheme, the simulation target is driven by utilizing the short-distance preset test step width and the slow preset speed, so that the problem of infrared information capture failure or capture omission caused by low sensitivity of the infrared sensing strip is effectively avoided, and the infrared information acquisition of the test point is more accurate and complete; whether the simulated target is close to the simulated target or not is judged through the change of the collected infrared information energy value, so that the critical point of the infrared induction area is determined, the infrared induction area of the test prototype is directly generated by connecting all the critical points, and the automatic identification and drawing of the infrared induction area are realized.

In a further embodiment, the mobile test is performed on the test point based on the mobile test by using the simulation target according to a preset mobile test case, specifically:

moving the simulation target left and right for each preset number of times at each test point of the mobile test at least four different speeds, and capturing all infrared information received in the mobile process by the test prototype;

the four different speeds include 20mm/sec, 40mm/sec, 60mm/sec, 100 mm/sec; the preset times are not less than 10.

The step of outputting the performance data of the test prototype according to the integrated received infrared information specifically comprises the following steps:

and calculating the slow rising rate or slow falling rate and rising angle or falling angle of the infrared energy data according to all the received infrared information, recording the corresponding trigger rate, obtaining a detection identification result, and further obtaining the accuracy data and sensitivity data of the test prototype.

According to the scheme, the simulation target is driven to move left and right for each preset number of times by taking the test point as a starting point at different test rates, and the test is repeated, so that the interference of data errors on the test is effectively avoided, and the test accuracy is improved; according to the change of data (the slow rising rate or slow falling rate and rising angle or falling angle of infrared energy data), whether the sample testing machine can recognize the movement of the simulation target can be simply and efficiently judged, so that the accuracy data and the sensitivity data of the test prototype can be intuitively obtained.

In a further embodiment, the test prototype is a vehicle-mounted central control display screen integrated with infrared detection equipment, and the infrared induction strip is arranged in the infrared detection equipment.

According to the scheme, the infrared detection device integrated on the vehicle-mounted central control display screen is directly subjected to performance test, so that the inconsistency between the independent detection result of the infrared detection device and the detection result after integrated installation is effectively avoided, the test result of the vehicle-mounted infrared detection function can be visually obtained, the factory detection efficiency of the vehicle-mounted device is greatly improved, and the detection cost is reduced.

The invention also provides a performance detection system of the infrared detection equipment, which operates the performance detection method of the infrared detection equipment, and comprises a test prototype, a main control module, a driving assembly and a simulation target, wherein the main control module and the driving assembly are electrically connected with each other;

the test prototype is used for emitting infrared radiation to the infrared interested area;

the main control module is used for controlling the driving assembly to reach a corresponding test point according to a preset proximity test case and a preset mobile test case;

the driving component is used for responding to the driving of the main control module;

the simulation target is used for simulating a detected target, responding to the infrared radiation and reflecting infrared information;

the test prototype is also used for acquiring the infrared information;

the main control module is also in data connection with the test prototype and is used for receiving and calculating the infrared information acquired by the test prototype, further determining the infrared sensing area of the test prototype, calculating the slow rising rate or slow falling rate and rising angle or falling angle of the infrared energy data so as to judge whether the simulation target moves or not, and further obtaining the accuracy data and sensitivity data of the test prototype.

According to the basic scheme, a highly automated test system is established through the data connection of the main control module, the driving assembly and the simulation manipulator and the test prototype, the simulation manipulator is utilized to simulate and detect the recognition target, the controllability of the detection recognition target is improved, and the control and accuracy of the test system on the test process are further improved; the driving assembly is utilized to drive the simulation manipulator, so that the simulation manipulator can freely move on a space test point, and the performance test efficiency is further improved through the electric drive of the driving assembly; the main control module is connected with the test prototype and the drive assembly, so that the infrared detection identification data and the actual motion track of the simulation manipulator can be accurately acquired, and the automatic output from the reflected infrared information to the equipment performance is realized under the algorithm processing of the built-in preset proximity test case and the preset mobile test case, so that the equipment performance test is highly automated, the test speed and accuracy are greatly improved, the test period is shortened, and the test cost is reduced.

In a further embodiment, the drive assembly comprises a power device and a transport rail mechanism; the power device comprises a servo motor; the conveying track mechanism comprises an X-axis conveying track, a Y-axis conveying track and a Z-axis conveying track which are combined and connected to form a space moving structure.

According to the scheme, the three-axis driving assembly with the space moving structure is arranged, the simulation target is fixed on the driving assembly, and the simulation target can move freely in a three-dimensional space, so that the infrared information receiving critical point can be effectively detected, and the infrared induction area range of the test prototype can be effectively divided.

In a further embodiment, the simulation target comprises at least two test assemblies of different reflectance, the test assemblies comprising a simulation manipulator.

According to the scheme, the simulation manipulators with different reflection coefficients are arranged, so that detection targets with different skin colors or colors are effectively simulated, the strength of the test prototype on the detection capability of different skin colors or colors is further obtained, and the test result is more comprehensive.

In a further embodiment, the test prototype is a vehicle-mounted central control display screen integrated with infrared detection equipment, and the infrared induction strip is arranged in the infrared detection equipment.

According to the scheme, the infrared detection device integrated on the vehicle-mounted central control display screen is directly subjected to performance test, so that the inconsistency between the independent detection result of the infrared detection device and the detection result after integrated installation is effectively avoided, the test result of the vehicle-mounted infrared detection function can be visually obtained, the factory detection efficiency of the vehicle-mounted device is greatly improved, and the detection cost is reduced.

The invention also provides performance detection equipment of the infrared detection equipment, which comprises the performance detection system of the infrared detection equipment, or operates the performance detection method of the infrared detection equipment.

Based on the system, the basic scheme establishes highly automated test equipment through the data connection of the main control module, the driving assembly and the simulation manipulator and the test prototype, realizes the automation of equipment performance test and the automated output from reflected infrared information to equipment performance, greatly improves the test speed and accuracy, shortens the test period and reduces the test cost.

Drawings

Fig. 1 is a flowchart of a performance detection method of an infrared detection device according to embodiment 1 of the present invention;

fig. 2 is a schematic diagram illustrating selection of a test point of a mobile test provided in embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of the proximity test provided in example 1 of the present invention;

FIG. 4 is a schematic diagram of the mobile test provided in embodiment 1 of the present invention;

fig. 5 is a virtual 3D diagram of an infrared sensing area obtained by a proximity test provided in embodiment 1 of the present invention;

FIG. 6 is a flow chart of the operation of the proximity test provided in embodiment 1 of the present invention;

fig. 7 is a flowchart of the mobile test provided in embodiment 1 of the present invention;

fig. 8 is a frame connection diagram of a performance detection system of an infrared detection device according to embodiment 2 of the present invention;

wherein: testing a prototype 0 and an infrared induction strip 01; the system comprises a main control module 1, a driving assembly 2, a simulation target 3 and an infrared sensing area R.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which are given solely for the purpose of illustration and are not to be construed as limitations of the invention, including the drawings which are incorporated herein by reference and for illustration only and are not to be construed as limitations of the invention, since many variations thereof are possible without departing from the spirit and scope of the invention.