CN101702036B - Infrared sky instrument - Google Patents
Infrared sky instrument Download PDFInfo
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- CN101702036B CN101702036B CN2009102229885A CN200910222988A CN101702036B CN 101702036 B CN101702036 B CN 101702036B CN 2009102229885 A CN2009102229885 A CN 2009102229885A CN 200910222988 A CN200910222988 A CN 200910222988A CN 101702036 B CN101702036 B CN 101702036B
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Abstract
The invention relates to an infrared sky instrument comprising an infrared temperature measurement unit, a two-dimension scanning platform, a controller and a control and data collection processing microcomputer. The infrared temperature measurement unit is a rapidly-response non-contact infrared temperature measurement thermometer; the two-dimension scanning platform comprises an azimuth scanning mechanism and a pitch scanning mechanism; the controller comprises a stepping motor driver (Motor Driver) satisfying the use requirements of a stepping motor, a micro chip computer and a communication interface chip; the two-dimension scanning platform drives the rapidly-response infrared temperature measurement unit to carry out all-day sky stereoscan under the control of the controller and thedata collection processing micro computer and stores the measured cloud base infrared radiation bright temperature values in the conditions of specified azimuth and elevation into the control and data collection processing micro computer. After the scanning is finished, the infrared radiation bright temperature values corresponding to different azimuths and elevations are spliced together to forman all-sky infrared radiation bright temperature distribution chart. The measurement can be carried out whenever in the day or at night as infrared radiation of clouds are measured. The infrared sky instrument can substitute the original cloud observation means, and can obtain all-weather refined cloud data of sky cloud form and cloud cover.
Description
Technical field
The present invention relates to the infrared brightness temperature measuring equipment of a kind of all-sky, can be used as the utility unit, the particularly device of measurement at night of sky cloud form and cloud amount analysis to measure in meteorological and the atmospheric exploration.
Background technology
The acquisition of the data of early stage surface weather observation medium cloud mainly relies on the human eye time sight, because people's individual difference, subjective, working strength is also bigger; In the recent period the device of similar functions has visible light all-sky photographic system, adds the ball that is in the light that blocks the sunshine direct projection by the camera of hairtail glasses head (180 ° of visual fields) and forms, and it can obtain the information of cloud by the all-sky cloud is taken pictures.Because it can only carry out the differentiation of gray shade scale by comparison film, and is not enough to the judgement resolution of cloud form and cloud amount, and can only measure by day, makes the data of cloud full and accurate inadequately, complete.
Summary of the invention
The purpose of this invention is to provide a kind of device as sky cloud form and cloud amount analysis to measure in meteorological and the atmospheric exploration.
The present invention solves the technical scheme that its technical matters takes: infrared sky instrument is made up of infrared thermography unit and two-dimensional scan platform and controller, control and data acquisition process microcomputer.The two-dimensional scan platform drives the infrared thermography unit all-sky is carried out stereoscanning under controller, control and data acquisition process control of microcomputer, and the bright temperature value of the cloud base infrared radiation at measured appointment orientation, the elevation angle is stored in control and the data acquisition process microcomputer.Behind the end of scan, the bright temperature value of the infrared radiation at corresponding different azimuth, the elevation angle is carried out picture mosaic, form the bright temperature distribution plan of all-sky infrared radiation.Owing to be that the infrared radiation of cloud is measured, therefore no matter by day or all can carry out night.The alternative cloud observation method in the past of infrared sky instrument, obtain round-the-clock, to the differentiation of sky cloud form and the cloud amount data of the cloud of refinement more.
Infrared thermography unit (1) is to respond noncontact infrared measurement of temperature thermometer fast, and it directly is sent to the bright temperature value of the target infrared radiation in the visual field in control and the data acquisition process microcomputer.
Two-dimensional scan platform (2) is made up of azimuth scan mechanism (11) and pitching scanning mechanism (12), azimuth scan mechanism is made up of azimuth-drive motor group (6) and orientation reductor (7), azimuth-drive motor group output shaft drives the orientation reductor, and the orientation speed reducer output shaft drives pitching scanning mechanism and infrared thermography unit (8) on its top and does azimuth rotation; The pitching scanning mechanism is made up of pitching motor group (10) and pitching reducer (9), and pitching motor group output shaft drives pitching reducer, and the pitching reducer output shaft only drives the infrared thermography unit and does pitch rotation
Controller (3) is made up of the stepper motor driver that satisfies the stepper motor request for utilization (Motor Drive) and single-chip microcomputer, communication interface chip, controller is accepted instruction that control and data acquisition process microcomputer (4) the send scanning sequence that brings into operation, single-chip microcomputer inputs to driver separately with orientation and pitching driving pulse and the direction signal (J3, J4) of output, drives the two-dimensional scan platform and drives the infrared thermography unit and carry out two-dimensional scan; Simultaneously, export the signal that arrives the designated parties position and the elevation angle to control and data acquisition process microcomputer.
Control and data acquisition process microcomputer regularly send the beginning scan instruction to controller, and the while orders about the infrared thermography unit according to the signal that puts in place of this controller loopback and carries out bright temperature signals collecting of infrared radiation and storage; After a scan period finishes, the bright temperature distribution plan of all-sky infrared radiation is handled and finally provided to data.
During work, control and data acquisition process microcomputer send the beginning scan instruction to controller, this controller control two-dimensional scan platform drive infrared thermography unit do in 0 °～90 ° scopes, at interval less than this visual field, infrared thermography unit etc. elevation angle lifting, on the different elevations angle, do 0 °～360 ° or 360 °～0 ° horizontal scanning in orientation of different scanning speed; Also constantly to the signal that puts in place of control and data acquisition process microcomputer output arrival assigned address, this control and data acquisition process microcomputer order about the infrared thermography unit and carry out bright temperature signals collecting of infrared radiation and storage after receiving the signal that puts in place at the scanning process middle controller; After a scan period finished, the bright temperature distribution plan of all-sky infrared radiation of overhead 180 ° of visual fields, native system present position is handled and finally provided to control and data acquisition process microcomputer to signal data.
Owing to adopted above-mentioned technical scheme, the beneficial effect that the present invention has is: infrared sky instrument by day or all can obtain the bright temperature distribution plan of all-sky infrared radiation of overhead 180 ° of visual fields, the width of cloth native system present position night in 4.5 minutes time just can obtain the analysis to measure result of cloud form and cloud amount and distribution by corresponding inverting pattern.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an infrared sky instrument synoptic diagram of the present invention;
Fig. 2 is the structural drawing (facing) of two-dimensional scan platform of the present invention;
Fig. 3 is the structural drawing (overlooking) of two-dimensional scan platform of the present invention;
Fig. 4 is the schematic diagram of controller of the present invention;
Fig. 5 is that synoptic diagram is calculated in scanning of the present invention;
Fig. 6 is scanning of the present invention, signals collecting program flow diagram.
Embodiment
Referring to accompanying drawing, describe the present invention.
Referring to accompanying drawing 1, infrared sky instrument is made up of infrared thermography unit and two-dimensional scan platform and controller, control and data acquisition process microcomputer.
The infrared thermography unit is to respond noncontact infrared measurement of temperature thermometer fast, and it directly is sent to the bright temperature value of the target infrared radiation in the visual field in control and the data acquisition process microcomputer.Its technical indicator is:
Temperature-measuring range :-100 ℃～500 ℃
Response wave length scope: 8～14um
Response time: 25ms
The distance than: 25: 1, being equivalent to field angle was 2.3 °
Environment for use temperature :-20 ℃～60 ℃
Data-interface: RS232C
Send the beginning scan instruction by control and data acquisition process microcomputer to controller, controller control two-dimensional scan platform drive the infrared thermography unit do in 0 °～90 ° scopes, be spaced apart 2.25 ° etc. elevation angle lifting, on the different elevations angle, do 0 °～360 ° or 360 °～0 ° horizontal scanning in orientation of different scanning speed; Also constantly to the signal that puts in place of control and data acquisition process microcomputer output arrival assigned address, control and data acquisition process microcomputer order about the infrared thermography unit and carry out bright temperature signals collecting of infrared radiation and storage after receiving the signal that puts in place at the scanning process middle controller; After a scan period finished, the bright temperature distribution plan of all-sky infrared radiation of overhead 180 ° of visual fields, native system present position is handled and finally provided to control and data acquisition process microcomputer to signal data.
Referring to accompanying drawing 2, accompanying drawing 3, the two-dimensional scan platform is made up of azimuth scan mechanism (11) and pitching scanning mechanism (12).Azimuth scan mechanism is made up of azimuth-drive motor group (6) and orientation reductor (7), and azimuth-drive motor group output shaft drives the orientation reductor, and the orientation speed reducer output shaft drives pitching scanning mechanism and infrared thermography unit (8) on its top and does azimuth rotation; The pitching scanning mechanism is made up of pitching motor group (10) and pitching reducer (9), and pitching motor group output shaft drives pitching reducer, and the pitching reducer output shaft only drives the infrared thermography unit and does pitch rotation
Its technical indicator is:
Orientation moment: 1.018Nm
Orientation rotating speed :≤52 °/Sec
Azimuth angle error :≤0.12 °
Pitching moment: 2.112Nm
Pitching rotating speed :≤18 °/Sec
Angle of pitch error :≤0.12 °
Referring to accompanying drawing 4, controller is made up of the stepper motor driver that satisfies the stepper motor request for utilization (Motor Drive) and single-chip microcomputer, communication interface chip.Single-chip microcomputer (U1) is by the beginning scan instruction of communication interface chip (U2) reception from control and data acquisition process microcomputer, single-chip microcomputer inputs to orientation and pitching driving pulse and direction signal (J3, J4) separately driver (Motor Drive1 (2)) respectively and drives the two-dimensional scan platform and drive the infrared thermography unit all-sky is scanned, at the scanning process middle controller also constantly to the signal that puts in place of control and data acquisition process microcomputer output arrival assigned address.
The distance of infrared thermography unit is than being 25: 1, and being equivalent to field angle is 2.3 °.Accomplish that seamless all-sky covers scanning, the elevation angle needs lifting 40 times for 0 °～90 °, and each 2.25 °, behind elevation angle of every lifting, the scanning of 0 °～360 ° or 360 °～0 ° is carried out in the orientation.
Referring to accompanying drawing 5, the speed of azimuth scan be according to the response time of infrared thermography unit, distance than and the elevation angle determine the sampled measurements number of times of distance when having determined the different elevation angle.Along with the lifting at the elevation angle, the spatial area of the required covering of azimuth scan can be more and more littler, and therefore, the number of times of sampled measurements is also fewer and feweri, and the speed of azimuth scan is also progressively accelerated.
The calculating of measuring number of times M during difference elevation angle A:
R＝r*cosA
B＝Atan(L/2R)
M＝360/(2*B)
Wherein, r/L be the infrared thermography unit distance than.
Referring to accompanying drawing 6, scanning and position put in place and upload, data acquisition storage and processing procedure.After controller is received the beginning scan instruction, controller control two-dimensional scan platform drive the infrared thermography unit do in 0 °～90 ° scopes, be spaced apart 2.25 ° etc. elevation angle lifting, on the different elevations angle, do 0 °～360 ° or 360 °～0 ° horizontal scanning in orientation of different scanning speed; Also constantly to the signal that puts in place of control and data acquisition process microcomputer output arrival assigned address, control and data acquisition process microcomputer order about the infrared thermography unit and carry out bright temperature signals collecting of infrared radiation and storage after receiving the signal that puts in place at the scanning process middle controller; After a scan period finished, the bright temperature distribution plan of all-sky infrared radiation of overhead 180 ° of visual fields, native system present position is handled and finally provided to control and data acquisition process microcomputer to signal data.Behind the end of scan, return the beginning scan instruction state of waiting for.
Its technical indicator is:
Azimuth scan scope: 0 °～360 ° or 360 °～0 °
Azimuth scan speed: along with the lifting of elevation angle A by 36 °/Sec～120 °/Sec
Elevation Scanning scope: 0～90 °
Lifting interval, the elevation angle: 2.25 °
Infrared sky instrument of the present invention sends the beginning scan instruction by control and data acquisition process microcomputer to controller, controller control two-dimensional scan platform drive the infrared thermography unit do in 0 °～90 ° scopes, be spaced apart 2.25 ° etc. elevation angle lifting, on the different elevations angle, do 0 °～360 ° or 360 °～0 ° horizontal scanning in orientation of different scanning speed; Also constantly to the signal that puts in place of control and data acquisition process microcomputer output arrival assigned address, control and data acquisition process microcomputer order about the infrared thermography unit and carry out bright temperature signals collecting of infrared radiation and storage after receiving the signal that puts in place at the scanning process middle controller; After a scan period finished, the bright temperature distribution plan of all-sky infrared radiation of overhead 180 ° of visual fields, native system present position is handled and finally provided to control and data acquisition process microcomputer to signal data.
Claims (1)
1. infrared sky instrument system is characterized in that: be made up of infrared thermography unit and two-dimensional scan platform and controller, control and data acquisition process microcomputer;
Above-mentioned infrared thermography unit is to respond noncontact infrared measurement of temperature thermometer fast, it directly is sent to the bright temperature value of the target infrared radiation in the visual field in above-mentioned control and the data acquisition process microcomputer, this control and data acquisition process microcomputer send the beginning scan instruction to above-mentioned controller, above-mentioned controller is controlled above-mentioned two-dimensional scan platform and is driven above-mentioned infrared thermography unit and do in 0 °～90 ° scopes, at interval less than this visual field, infrared thermography unit etc. elevation angle lifting, on the different elevations angle, do 0 °～360 ° or 360 °～0 ° horizontal scanning in orientation of different scanning speed, above-mentioned controller is also constantly exported the signal that puts in place that arrives assigned address to this control and data acquisition process microcomputer in scanning process, above-mentioned control and data acquisition process microcomputer order about this infrared thermography unit and carry out bright temperature signals collecting of infrared radiation and storage after receiving the signal that puts in place, after a scan period finished, the bright temperature distribution plan of all-sky infrared radiation of overhead 180 ° of visual fields, native system present position is handled and finally provided to above-mentioned control and data acquisition process microcomputer to signal data; Above-mentioned two-dimensional scan platform (2) is made up of azimuth scan mechanism (11) and pitching scanning mechanism (12), this azimuth scan mechanism is made up of azimuth-drive motor group (6) and orientation reductor (7), this azimuth-drive motor group output shaft drives this orientation reductor, and this orientation speed reducer output shaft drives pitching scanning mechanism and infrared thermography unit (8) on its top and does azimuth rotation; Above-mentioned pitching scanning mechanism is made up of pitching motor group (10) and pitching reducer (9), and this pitching motor group output shaft drives this pitching reducer, and this pitching reducer output shaft only drives the infrared thermography unit and does pitch rotation; The speed of azimuth scan be according to the response time of infrared thermography unit, the distance than and the elevation angle determine, the sampled measurements number of times of distance when having determined the different elevation angle, lifting along with the elevation angle, the spatial area of the required covering of azimuth scan can be more and more littler, therefore, the number of times of sampled measurements is also fewer and feweri, and the speed of azimuth scan is also progressively accelerated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102229885A CN101702036B (en) | 2009-11-16 | 2009-11-16 | Infrared sky instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102229885A CN101702036B (en) | 2009-11-16 | 2009-11-16 | Infrared sky instrument |
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| CN101702036A CN101702036A (en) | 2010-05-05 |
| CN101702036B true CN101702036B (en) | 2010-12-08 |
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| CN2009102229885A Active CN101702036B (en) | 2009-11-16 | 2009-11-16 | Infrared sky instrument |
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| CN102520463B (en) * | 2011-11-01 | 2015-04-22 | 中国科学院大气物理研究所 | All-sky visible light cloud imaging system |
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| CN102636267B (en) * | 2012-03-31 | 2013-10-30 | 中国科学院安徽光学精密机械研究所 | Sky brightness instrument |
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| US11781903B2 (en) | 2014-09-29 | 2023-10-10 | View, Inc. | Methods and systems for controlling tintable windows with cloud detection |
| TWI727931B (en) | 2014-09-29 | 2021-05-21 | 美商唯景公司 | Combi-sensor systems |
| US11566938B2 (en) | 2014-09-29 | 2023-01-31 | View, Inc. | Methods and systems for controlling tintable windows with cloud detection |
| EP3875996A1 (en) | 2014-09-29 | 2021-09-08 | View, Inc. | Sunlight intensity or cloud detection with variable distance sensing |
| TWI746446B (en) | 2015-07-07 | 2021-11-21 | 美商唯景公司 | Viewcontrol methods for tintable windows |
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| CN109863425B (en) * | 2016-10-06 | 2022-07-01 | 唯景公司 | System and method for infrared cloud detector |
| CN108594329B (en) * | 2017-12-29 | 2020-09-01 | 中国科学院云南天文台 | Full-sky-domain infrared cloud meter and measuring method |
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Application publication date: 20100505 Assignee: Jiangsu Provincial Radio Inst Co., Ltd. Assignor: Inst. of Atmospheric Physics, Chinese Academy of Sciences Contract record no.: 2013320000087 Denomination of invention: Infrared sky instrument Granted publication date: 20101208 License type: Exclusive License Record date: 20130312 |
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