CN101893724B - Automatic freezing observation method and device for ground meteorological observation - Google Patents
Automatic freezing observation method and device for ground meteorological observation Download PDFInfo
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- CN101893724B CN101893724B CN2010102541687A CN201010254168A CN101893724B CN 101893724 B CN101893724 B CN 101893724B CN 2010102541687 A CN2010102541687 A CN 2010102541687A CN 201010254168 A CN201010254168 A CN 201010254168A CN 101893724 B CN101893724 B CN 101893724B
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- icing
- ware
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- mini fan
- image
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Abstract
The invention relates to an automatic freezing observation device for ground meteorological observation, which comprises a water container. The water container is a shallow cylindrical metal freezing vessel; the center of the freezing vessel is fixed with a positioning shaft; the positioning shaft is sleeved with a floating turntable of which the diameter is smaller than the internal diameter of the freezing vessel; the center of the floating turntable is provided with a round hole of which the diameter is slightly greater than the external diameter of the positioning shaft; a micro fan is fixed on the edge of the freezing vessel and connected with a power supply; and an image acquisition device is fixed above the freezing vessel, and the data output end of the image acquisition device is connected with the data input end of a computer. The automatic freezing observation device realizes automatic observation by automatically acquiring images and identifying the freezing weather phenomenon occurs in a ground meteorological observation field or not instead of manual freezing observation.
Description
Technical field
The present invention relates to a kind of icing devices and methods therefor of automatic observation that is applied to surface weather observation.
Background technology
When the weather station carries out surface weather observation at present, whether general all be to be frozen by the water in the evaporating dish in the special observation personnel observation field, artificial observation relies on range estimation to judge whether to take place the phenomenon of freezing, need time sight every day, observe one day and be divided into 24 times, 8 times or 3 different frequencies, there is very big artificial difference in artificial observation, the result of observation is inaccurate, because observing frequency is oversize at interval, causes in time reflecting observed result, can't judge what whether the phenomenon of freezing took place.
The utility model content
The purpose of this invention is to provide a kind of icing automatic observation process and device, solve artificial inaccurate, untimely technical matters surface weather observation in surface weather observation.
For achieving the above object, the present invention adopts following technical scheme: a kind of icing automatic observation device that is used for surface weather observation, comprise a water container, described water container is the icing ware of shallow columnar metal matter, the center fixation of icing ware has a locating shaft, be with the floating rotating disk of a diameter on the locating shaft less than the ware internal diameter that freezes, the central authorities of floating rotating disk have one with the bigger circular hole of locating shaft external diameter, edge at the ware that freezes is fixed with a mini fan, mini fan is connected with power supply, the oblique upper of icing ware is fixed with image acquisition device, and the data output end of image acquisition device is connected with the data input pin of computing machine.
Described computing machine comprises: be used to receive the input/output module of captured image data, go into/output interface of output module is connected with the input interface of CPU; Read the time block of pictures taken when being used to formulate, the time module input interface be connected with the output interface of CPU; CPU also connects the identification module that is used for discerning automatically pictures taken; Be used to check whether to the detection module that will compare the picture time; The comparison module that is used for the pictures taken difference of comparison mini fan blowing front and back; The signal input output interface of above-mentioned CPU connects the memory module that is used to store pictures taken, comparative result; The signal input output interface of above-mentioned CPU connects the display module that is used to show comparative result.
On the described floating rotating disk pattern is arranged.
The external diameter of described floating rotating disk is littler 10~20 millimeters than icing ware internal diameter.
The circular hole of described floating rotating disk is bigger 0.5~1.5 millimeter than the external diameter of locating shaft.
Described floating rotating disk be density less than water, and the thin slice that does not absorb water.
The thickness of described floating rotating disk is 1~2 millimeter.
Described image acquisition device is a ccd video camera.
Be connected timer between described mini fan and the power supply.
Described method based on the icing automatic observation device that is used for surface weather observation has following steps: step 1: image acquisition device is taken the image of the preceding ware water surface that freezes of mini fan blowing.
Step 2: start mini fan, breeze to the water surface of the ware that freezes.
Step 3: image acquisition device is taken the image of the icing ware water surface in mini fan blowing back.
Step 4: by the time block of computing machine, regularly the photographic images in the reading images collector reaches memory module with image.
Step 5: judge whether that by detection module needs compare the time of photographic images.
Step 6: identification module automatically identifies the image of continuous shooting, and is sent to comparison module.
Step 7: comparison module compares the image before and after the mini fan blowing, and relatively whether the image before and after is identical, judged whether icing phenomenon.
Step 8: if judge that the image before and after the mini fan blowing unlatching is identical, then for freezing; If judge that the image before and after the mini fan blowing unlatching is inequality, then freeze.
Step 9: whether repeating step one to eight, continue observation and freeze.
Compared with prior art the present invention has following characteristics and beneficial effect: device design of the present invention is ingenious, and floating rotating disk is installed on locating shaft, is fixed on the surface of water in the ware that freezes, and can effectively reduce the water evaporation in the ware that freezes.Image acquisition device is taken floating rotating disk and image is sent to computing machine, because the pattern that design has shape to differ on the floating dish, computing machine is by discerning accurately and rapidly the image of taking, whether judge floating rotating disk rotates, and the rotation by floating rotating disk, calculate function and just find when just beginning to freeze whether the water surface has icing phenomenon to occur.
The present invention obtains automatically in the realtime graphic that has adopted image acquisition device to the observation site, in time send photographic images to computing machine, the automatic recognition function of computing machine can be discerned rapidly and accurately to image, and whether the icing weather phenomenon of judging in the very first time in the surface weather observation field takes place.Thereby substitute artificial observation, overcome untimely, the inaccurate shortcoming of traditional artificial observation, realize robotization the icing meteorological observation in ground to the weather phenomenon of freezing.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing.
Fig. 1 is an apparatus structure synoptic diagram of the present invention.
Fig. 2 is a module diagram of the present invention.
Fig. 3 is a processing flow chart of the present invention.
Reference numeral: 1-computing machine, 2-image acquisition device, the icing ware of 3-, the floating rotating disk of 4-, 5-locating shaft, 6-mini fan, 7-water, 8-circular hole.
Embodiment
Referring to shown in Figure 1, this icing automatic observation device that is used for surface weather observation, comprise a water container, described water container is the icing ware 3 of shallow columnar metal matter, the center fixation of icing ware has a locating shaft 5, be with the floating rotating disk 4 of a diameter on the locating shaft less than the ware internal diameter that freezes, floating rotating disk swims on the surface of water 7, described floating rotating disk is that density is less than water, and the thin slice that does not absorb water, different pattern is arranged on the surface, and its external diameter is littler 10~20 millimeters than icing ware 3 internal diameters, and thickness is 1~2 millimeter.There is a circular hole 8 with 0.5~1.5 millimeter of locating shaft 5 external diameter in the central authorities of floating rotating disk, by screw retention one mini fan 6 are arranged at the edge of the ware that freezes, and mini fan 6 is connected with power supply, and with power supply between be connected timer.The oblique upper of icing ware is fixed with image acquisition device 2, and image acquisition device is a ccd video camera.The data output end of image acquisition device is connected with the data input pin of computing machine 1.
Referring to module diagram shown in Figure 2, the input end that being used to of the data output end of described image acquisition device 2 and computing machine 1 receives the input/output module of captured image data is connected; The output interface of input/output module is connected with the input interface of CPU; Read the time block of pictures taken when being used to formulate, the time block input interface is connected with the output interface of CPU; Read the picture instruction when CPU sends, then input/output module is passed to CPU with the picture that receives; CPU also connects the identification module that is used for discerning automatically pictures taken; Be used to check whether to the detection module that will compare the picture time; The comparison module that is used for the pictures taken difference of comparison mini fan blowing front and back; Final CPU transfers to the memory module that is used to store pictures taken, comparative result with comparative result by a signal input output interface, comparative result is transferred to the display module that is used to show comparative result by another signal output interface.
Referring to shown in Figure 3, described method based on the icing automatic observation device that is used for surface weather observation has following steps: step 1: image acquisition device is taken the image of the preceding ware water surface that freezes of mini fan blowing.
Step 2: start mini fan, breeze to the water surface of the ware that freezes.
Step 3: image acquisition device is taken the image of the icing ware water surface in mini fan blowing back.
Step 4: by the time block of computing machine, regularly the photographic images in the reading images collector reaches memory module with image.
Step 5: judge whether that by detection module needs compare the time of photographic images.
Step 6: identification module automatically identifies the image of continuous shooting, and is sent to comparison module.
Step 7: comparison module compares the image before and after the mini fan blowing, and relatively whether the image before and after is identical, judged whether icing phenomenon.
Step 8: if judge that the image before and after the mini fan blowing unlatching is identical, then for freezing; If judge that the image before and after the mini fan blowing unlatching is inequality, then freeze.
Step 9: whether repeating step one to eight, continue observation and freeze.
Claims (9)
1. icing automatic observation device that is used for surface weather observation, comprise a water container, it is characterized in that: described water container is the icing ware (3) of shallow columnar metal matter, the center fixation of icing ware has a locating shaft (5), be with the floating rotating disk (4) of a diameter on the locating shaft less than the ware internal diameter that freezes, the central authorities of floating rotating disk have one with the bigger circular hole (8) of locating shaft (5) external diameter, edge at the ware that freezes is fixed with a mini fan (6), mini fan (6) is connected with power supply, the oblique upper of icing ware is fixed with image acquisition device (2), and the data output end of image acquisition device is connected with the data input pin of computing machine (1);
Described computing machine comprises:
Be used to receive the input/output module of captured image data, the output interface of input/output module is connected with the input interface of CPU; Be used for regularly reading the time block of pictures taken, the time block input interface is connected with the output interface of CPU; CPU also connects the identification module that is used for discerning automatically pictures taken; Be used to check whether to the detection module that will compare the picture time; The comparison module that is used for the pictures taken difference of comparison mini fan blowing front and back; The signal input output interface of above-mentioned CPU connects the memory module that is used to store pictures taken, comparative result; The signal input output interface of above-mentioned CPU connects the display module that is used to show comparative result.
2. the icing automatic observation device that is used for surface weather observation according to claim 1 is characterized in that: on the described floating rotating disk (4) different pattern is arranged.
3. the icing automatic observation device that is used for surface weather observation according to claim 1 is characterized in that: the external diameter of described floating rotating disk is littler 10~20 millimeters than icing ware (3) internal diameter.
4. the icing automatic observation device that is used for surface weather observation according to claim 1 is characterized in that: the circular hole of described floating rotating disk (8) is bigger 0.5~1.5 millimeter than the external diameter of locating shaft (5).
5. the icing automatic observation device that is used for surface weather observation according to claim 1 is characterized in that: described floating rotating disk be density less than water, and the thin slice that does not absorb water.
6. the icing automatic observation device that is used for surface weather observation according to claim 1 is characterized in that: the thickness of described floating rotating disk is 1~2 millimeter.
7. the icing automatic observation device that is used for surface weather observation according to claim 1 is characterized in that: described image acquisition device (2) is a ccd video camera.
8. the icing automatic observation device that is used for surface weather observation according to claim 1 is characterized in that: be connected timer between described mini fan (6) and the power supply.
9. an application rights requires any described method that is used for the icing automatic observation device of surface weather observation of 1-8, it is characterized in that following steps are arranged:
Step 1: image acquisition device is taken the image of the preceding ware water surface that freezes of mini fan blowing;
Step 2: start mini fan, breeze to the water surface of the ware that freezes;
Step 3: image acquisition device is taken the image of the icing ware water surface in mini fan blowing back;
Step 4: by the time block of computing machine, regularly the photographic images in the reading images collector reaches memory module with image;
Step 5: judge whether that by detection module needs compare the time of photographic images;
Step 6: identification module automatically identifies the image of continuous shooting, and is sent to comparison module;
Step 7: comparison module compares the image before and after the mini fan blowing, and relatively whether the image before and after is identical, judged whether icing phenomenon;
Step 8: if judge that the image before and after the mini fan blowing unlatching is identical, then for freezing; If judge that the image before and after the mini fan blowing unlatching is inequality, then freeze;
Step 9: whether repeating step one to eight, continue observation and freeze.
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CN2010102541687A CN101893724B (en) | 2010-08-16 | 2010-08-16 | Automatic freezing observation method and device for ground meteorological observation |
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CN2010102541687A CN101893724B (en) | 2010-08-16 | 2010-08-16 | Automatic freezing observation method and device for ground meteorological observation |
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CN102073070A (en) * | 2011-01-13 | 2011-05-25 | 华中科技大学 | Freezing detection method based on image processing |
CN102830445B (en) * | 2012-09-06 | 2015-07-01 | 中国气象局气象探测中心 | Method and device for automatically observing freezing in surface meteorological observation |
CN109751988A (en) * | 2019-02-14 | 2019-05-14 | 重庆融创视讯科技有限公司 | A kind of real-time ice and snow of road based on naked eye 3D technology monitors analyte sensors automatically |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5557261A (en) * | 1994-05-06 | 1996-09-17 | Nichols Research Corporation | Ice monitoring and detection system |
CN101556142A (en) * | 2009-03-11 | 2009-10-14 | 湖南大学 | Visual detection method of ice coating thickness of overhead lines |
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JP2794543B2 (en) * | 1994-11-01 | 1998-09-10 | 新潟電機株式会社 | Road area snow presence detection device |
JP2707426B2 (en) * | 1995-03-31 | 1998-01-28 | 名古屋電機工業株式会社 | Road surface condition detection device |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5557261A (en) * | 1994-05-06 | 1996-09-17 | Nichols Research Corporation | Ice monitoring and detection system |
CN101556142A (en) * | 2009-03-11 | 2009-10-14 | 湖南大学 | Visual detection method of ice coating thickness of overhead lines |
Non-Patent Citations (1)
Title |
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叶林等.结冰传感器摄像标定方法的研究.《仪表技术与传感器》.2006,(第11期),36-37,41. * |
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