CN209961332U

CN209961332U - Photometric monitoring system with real-time feedback in environmental simulation

Info

Publication number: CN209961332U
Application number: CN201822168239.6U
Authority: CN
Inventors: 侯丽敏; 宋俊
Original assignee: Shanghai Haozhan Intelligent Technology Co Ltd
Current assignee: Shanghai Fuzhan Intelligent Technology Co ltd; Shanghai Haozhan Testing Technology Co.,Ltd.
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2020-01-17
Anticipated expiration: 2028-12-24

Abstract

The photometric monitoring system with real-time feedback in environmental simulation mainly comprises 6 parts: the method comprises the steps that an imaging type measuring module located at the top of a cockscomb acquires abnormal area data inside the cockscomb, a measuring module located at the top of a cabin acquires feature identification area data of three areas, a illuminometer inside the cabin acquires accurate data of a light color environment at a high speed, and an imaging luminance meter is used for analyzing data of overall uniformity and light color, and when light color difference exists between the areas and is not matched with set parameters, feedback adjustment is carried out. The utility model discloses a luminosity monitoring system can guarantee arbitrary luminance, and the stability of the space light environment under the arbitrary work often can reduce the requirement of lamps and lanterns uniformity, prolongs the life of necessary maintenance cycle and lamps and lanterns.

Description

Photometric monitoring system with real-time feedback in environmental simulation

Technical Field

The utility model relates to a light environment simulation monitoring adjusting device belongs to ambient light test control technical field.

Background

The space inner surface of the light environment simulation system is composed of LED light emitting matrixes to form a uniformly luminous inner surface, and the space inner surface simulates sky natural light or environment light of a fixed space. In addition to satisfying the illumination condition of a fixed position in the experimental space, the uniformity of light color of the inner surface of the space is also a necessary satisfying condition.

For a small-sized and low-power light source box, an LED light source module is often used as a light emitting body, and the requirement of light color adjustment also exists, but the light color consistency on the surface of the light emitting body cannot be ensured. The dimming feedback mode for the small light source box aims to adjust the light color of the test point of the light source box to meet the set requirement, and the light color consistency of the surface of the light source is not concerned. The adjusting mode is only suitable for the conditions of small size and no concern on the surface color consistency of the light source.

The light environment simulation system for simulating the sky natural light environment focuses on the light color information of the central experimental area, the light color consistency of the inner surface of the light environment space is also particularly important, the perception of people on the light environment in the light environment work efficiency experiment is directly influenced, the experiment result is influenced, and the light color regulation feedback of a central point single point cannot meet the requirement.

Disclosure of Invention

The utility model aims to provide a luminosity monitoring system with real-time feedback in luminous environment simulation, which monitors the brightness and the chromaticity of each region in real time through an imaging test means; when the difference exists, the system can give the module dimming parameters and control the LED modules of the areas needing dimming to adjust the light color, so that the light color of each area is kept consistent.

The technical scheme of the utility model as follows:

the device of the utility model mainly comprises 6 parts: the system comprises an imaging measurement module for acquiring and acquiring imaging data of the whole light environment in real time, an area data measurement module for acquiring light color information of one or more specific areas in the light environment, a monitoring device arranged in the center of the light environment, a plurality of sensing modules distributed in the environment, a light modulation control module for light color modulation, a communication module for connecting each module with a communication system, and a control system for information feedback modulation.

The imaging measurement module is arranged in the center of the light environment dome and can identify and acquire region data in the light environment according to the characteristics of three regions divided in the standard sky model.

The regional data measurement module is arranged at the top of the test object in the light environment and is used for acquiring the light color information of one or more specific regions in the light environment

The sensing module can be distributed in the inner space of the test object and comprises an illuminometer and a luminance meter. The illuminometer is an accurate light-splitting type color illuminometer, and a grating and a sensor array are arranged in the illuminometer; the luminance meter is based on a CCD color imaging luminance meter and is internally provided with a fisheye digital camera.

The control system can monitor and feed back in real time in the light color adjusting process until the light color meets the set conditions.

The utility model has the advantages that:

1. the space light environment with any brightness and any work time can be ensured.

2. The range of typical color acquisition is greatly increased.

3. The requirements for lamp consistency can be reduced, the necessary maintenance period can be prolonged, and the service life of the lamp can be prolonged.

Drawings

FIG. 1CIE Standard sky partitioning

FIG. 2 feedback correction System zoning

FIG. 3 is a flow chart of a feedback correction system

Detailed Description

To better illustrate the objects and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings.

The utility model discloses a luminosity monitoring system who has real-time feedback in environmental simulation mainly comprises 6 parts: the imaging type measuring module positioned at the top of the cockscomb acquires abnormal area data inside the cockscomb, the measuring module positioned at the top of the cabin acquires feature identification area data of three areas, an illuminometer inside the cabin acquires accurate data of a photochromic environment at a high speed, and the imaging luminance meter is used for analyzing data of integral uniformity and photochromic analysis. For the feedback correction mechanism adopted by the system, the related equipment mainly comprises a luminometer and an imaging luminance meter, and the photochromic problem caused by time or other factors can be relieved by using the mechanism.

After the data are identified by software partition, the data are fed back to a correction index, then are transmitted back to the controller through a high-speed network cable, and are decoded and converted into WW \ CW dual-channel dimming numerical values, so that the light color interference of other regions is integrally solved, and the environment abnormity is actually detected and solved in the feedback correction process.

Illustrated in fig. 1 as a CIE standard sky partition. In the initial stage of the simulation phase, the integral cancave light color control system simulates and verifies a standard sky model with reference to a CIE to design the brightness distribution of the cancave, but the integral cancave light color control system has the advantages that the sky type is designed in a guiding manner, and a certain optimization needs to be carried out on the CIE regulation and control brightness distribution model in the simulation of the high-altitude light color environment so as to correct the brightness change obtained by ground monitoring. In consideration of simplifying and accurately realizing the most real sky regulation and control effect, the optimization result is to correspond the area of the sky model to the brightness of the lamp, and finally the reappearance of the illumination and color temperature environment of the cabin position in the high air is realized.

Fig. 2 is a block diagram of the feedback correction system. Differential processing is adopted for the actual partitions, and the 145 partitions of the standard sky model are finally changed into 8-20 + 2-20 groups of partitions according to the actual installation structure; and for the actual partition of the model given by the CIE standard sky, the actual partition directly corresponds to the driving addresses of the main control of the lamp and the next level of the main control under the three large-area partition and is related to the actual pixels of the lamp, so that other custom weather conditions including 15 sky types can be accurately restored.

The illumination meter in the feedback correction mechanism is a color illuminometer, is a grating light splitting type and is used for data acquisition, and the measurement speed can reach 5 times/s by combining SDK software, so that the front-end data acquisition with quick feedback is realized. In addition, when the brightness is low in the simulated night environment, the illuminance measurement in scotopic vision can be satisfied, and the collected X, Y, Z data is output.

The imaging brightness meter in the feedback correction mechanism is a CCD color imaging brightness meter, and a digital camera is used as a feedback acquisition element. In the feedback link, the fisheye camera is used for determining abnormity, in addition, the area uniformity and the characteristic area identification result are fed back, and finally, the XYZ tristimulus values are output by combining the spectrophotometer, so that the follow-up feedback adjustment is facilitated.

Fig. 3 is a flow chart of the feedback correction system. A feedback correction button is added on a control software interface, after the button is clicked, software can calculate the color coordinate and the brightness corresponding to the image collected by the sensor, compare the color coordinate and the brightness with the set target parameters, if the color coordinate and the brightness exceed the threshold value, reset the parameters, perform light mixing calculation again, approach the optimal value circularly, and correct the result.

The calibration system can be suitable for a light environment laboratory or space in other shapes such as a globoid light environment simulation system or a square shape.

The feedback algorithm described above may also be replaced with PID, fuzzy feedback control algorithms and other feedback algorithms.

Claims

1. A photometric monitoring system with real-time feedback in environmental simulation, comprising:

the imaging measurement module can acquire images and information of the luminous surface in the luminous environment in real time and acquire integral imaging data of the luminous environment; the regional data measurement module can acquire the light color information of one or more regions in the light environment;

the plurality of sensing modules comprise a monitoring device in the light environment center and a plurality of sensing devices distributed in the environment, and the light color information of the central area of the monitoring device in the light environment center is monitored;

the dimming control module sends a dimming signal to adjust the light color of the light source in the light environment;

the communication module is in communication connection with the imaging measurement module, the area data measurement module, the sensing module, the dimming control module and the control system;

and the control system receives optical monitoring data of the imaging measurement module, the area data measurement module and the sensing module, and feeds back light color information of the areas when light color difference exists among the areas and the areas are not matched with the set parameters, so as to control the dimming control module to adjust.

2. The photometric monitoring system with real time feedback for environmental simulation as recited in claim 1 wherein the control system can monitor and feed back the light color during the adjustment of the light color in real time until the light color meets the set condition.

3. The photometric monitoring system with real time feedback for environmental simulation of claim 1 wherein the imaging measurement module is located in the center of a light environment dome.

4. The photometric monitoring system with real time feedback in environmental simulation of claim 1 wherein the regional data measuring module is disposed on top of the test object within the light environment and the sensing module is distributed within the internal space of the test object.

5. The photometric monitoring system with real time feedback for environmental simulation of claim 1 wherein the imaging measurement module can identify and obtain regional data in light environment according to the characteristics of three regions divided in the standard sky model.

6. The system of claim 1, wherein the control system is capable of recovering customized weather conditions including 15 sky types based on color illumination and color imaging brightness measurements.

7. The photometric monitoring system with real time feedback in environmental simulation according to any one of the claims 1 to 6 wherein the sensing module comprises a luminometer.

8. The photometric monitoring system with real time feedback for environmental simulation according to any one of claims 1 to 6 wherein the sensing module comprises a luminance meter.

9. The photometric monitoring system with real time feedback in environmental simulation according to claim 7 wherein the illuminometer is a precision-split color illuminometer.

10. The photometric monitoring system with real time feedback in environmental simulation of claim 7 wherein the luminometer has built in grating and sensor arrays.

11. The photometric monitoring system with real time feedback in environmental simulation according to claim 8 wherein the luminance meter is based on a CCD color imaging luminance meter.

12. The photometric monitoring system with real time feedback in environmental simulation of claim 8 wherein the luminance meter comprises a fish eye digital camera.