CN104236475B - One is taken precautions against natural calamities snow depth monitoring system and the long-range antidote of snow depth sensor angles - Google Patents
One is taken precautions against natural calamities snow depth monitoring system and the long-range antidote of snow depth sensor angles Download PDFInfo
- Publication number
- CN104236475B CN104236475B CN201410459186.7A CN201410459186A CN104236475B CN 104236475 B CN104236475 B CN 104236475B CN 201410459186 A CN201410459186 A CN 201410459186A CN 104236475 B CN104236475 B CN 104236475B
- Authority
- CN
- China
- Prior art keywords
- snow depth
- ground
- depth sensor
- snow
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 239000000729 antidote Substances 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000013507 mapping Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The one of the anti-disaster monitoring technical field that the invention discloses a kind of snow depth sensor is taken precautions against natural calamities snow depth monitoring system and the long-range antidote of snow depth sensor angles, and snow depth of taking precautions against natural calamities monitoring system includes vertical pole, cross bar, video camera, snow depth sensor.The long-range antidote of snow depth sensor angles reduces ratio by calculate shot by camera photo and actual place scope, is calculated the changing value at snow depth sensor perturbations angle, utilizes changing value to obtain accurate snow depth.
Description
Technical field
The invention belongs to the anti-disaster monitoring technical field of snow depth sensor, particularly relate to snow of taking precautions against natural calamities
Deep monitoring system and the long-range antidote of snow depth sensor angles.
Background technology
At present, the meteorological monitoring sensor such as snow depth sensor is widely used in railway anti-disaster monitoring skill
Art field, by reporting to the police to snow depth, it is ensured that traffic safety.Snow depth sensor is when mounted
Can there is an angle tilted with vertical direction, this angle is input in snow depth sensor,
Due to snow depth value=snow depth sensor to ground distance-snow depth sensor to accumulated snow surface away from
From, wherein, the distance of snow depth sensor to ground can shift to an earlier date to be measured at the scene, and snow depth senses
Device is to distance=snow depth sensor and the cosine of an angle value * snow depth inclined vertically on accumulated snow surface
The length of the infrared ray of sensor injection.But frequently occur when earth shock, time length snow
The installation folder of deep sensor easily loosens, due to gravity factor, snow depth sensor and vertical direction
The angle of inclination can diminish, and if according further to original angle calculation snow depth value, measurement result
Error will be produced.Traditional method is, to scene, sensor angles is re-started measurement.
Summary of the invention
It is an object of the invention to, it is provided that one is taken precautions against natural calamities snow depth monitoring system and snow depth sensor angle
Spend long-range antidote, be used for solving existing snow depth monitoring system and the snow depth sensor angles of taking precautions against natural calamities
The problem cannot remotely corrected after change.
To achieve these goals, the present invention propose technical scheme be one take precautions against natural calamities snow depth monitoring
System, the vertical pole 1 in system is arranged bottom it perpendicular to the ground to be fixed with ground by backing, level
Cross bar 2 left end is fixed on vertical pole 1 top, and video camera 3 is fixed on cross bar right-hand member perpendicular to the ground,
Camera lens is made to be facing perpendicularly to ground；At water balance bar 2 keeps left end perpendicular to the ground direction to
Right bank α angle installs snow depth sensor 4, and the infrared ray making snow depth sensor 4 penetrate arrives
The point that the point reaching ground is mapped to ground with video camera 3 optical center overlaps；At snow depth sensor
The mount point of 4 is mapped at ground and arranges marking rod 5；Described snow depth sensor 4 and video camera
3 inclined angle alpha=0 °, direction, mounting distance snow depth to be ensured sensor vertical ground time, injection
Infrared ray arrive ground point be still included in video camera coverage.
Described 0 ° < α < 90 °.
Described snow depth sensor can automatically be measured the launch point of infrared ray and arrive with infrared ray
Distance between the point on accumulated snow surface.
Described marking rod height > the highest snow depth.
A kind of snow depth sensor angles remotely side of rectification based on described snow depth monitoring system of taking precautions against natural calamities
Method, it is characterised in that described method comprises the steps:
Step 1: measure snow depth sensor to ground vertical away from, measurement camera lens center
It is mapped to the point on ground and snow depth sensor maps to the distance between the point on ground；
Step 2: calculating shot by camera photo reduces ratio with actual place scope；
Step 3: calculate snow depth sensor according to the ratio that reduces and become with Vertical Square plane inclination
Inclination angle after change；
Step 4: the inclination angle after the change will calculated in step 3 is input to snow depth sensing
In device, calculate snow depth value.
Accompanying drawing explanation
Fig. 1 is snow depth monitoring system of taking precautions against natural calamities, the most 1.-vertical pole, 2.-cross bar, 3.-shooting
Machine, 4.-snow depth sensor, 5.-marking rod；
Fig. 2 is the application long-range antidote of snow depth sensor angles and unused the method and reality
The comparison diagram of snow depth measured value；The most 1.-actual snow depth sensor and the inclination angle of vertical direction
The snow depth value curve that during degree β change, unused forwarding method of the present invention is measured；2.-actual snow depth sensing
The inclination angle beta of device and vertical direction has used the snow depth value that forwarding method of the present invention is measured when changing
Curve.
Detailed description of the invention
Below in conjunction with the accompanying drawings, preferred embodiment is elaborated.Under it is emphasized that
State bright that be merely exemplary rather than in order to limit the scope of the present invention and application thereof.
Embodiment 1:
In conjunction with Fig. 1 it can be seen that snow depth sensing system of taking precautions against natural calamities includes that arrange perpendicular to the ground indulges
Bar 1, the bottom of vertical pole fixed with ground by backing, and vertical pole top arranges a horizontal cross bar 2,
The left end of cross bar is horizontally fixed on vertical pole top, and cross bar is d away from ground level；The right side at cross bar
End fixes video camera 3 perpendicular to the ground, makes camera lens be facing perpendicularly to ground.When not snowing,
The central region of video camera is ground D point.The field range of video camera is with on ground
ACBE point is the rectangle on summit, with the α angle that is tilted to the right perpendicular to the ground at the P point of water balance bar
Installing snow depth sensor 4, the Infrared making snow depth sensor emission go out just is penetrated at ground D
Point, if P point is vertically mapped to N point on ground.And marking rod 5, labelling are set at N point
Bar height > the highest snow depth h；Field survey d and ND.
After snowing, if snow depth is h, the Infrared that snow depth sensor emission goes out should be penetrated
μ point on accumulated snow surface, the central region of video camera is the x point on accumulated snow surface, i.e. video camera
Central region and x point also D point on same vertical line.Marking rod 5 is from accumulated snow surface n
Point passes.
But when there being vibrations to occur, such as train process, the installation folder easily pine of snow depth sensor
Dynamic, due to gravitational effect, inclined angle alpha can reduce, after vibrations stop, if at P point
It is reduced to β angle, then now snow depth sensor emission goes out with direction tilt alpha angle perpendicular to the ground
Infrared is penetrated and is moved to the left to m point, p in the position on accumulated snow surface by original μ point level
The n point that point is vertically mapped on accumulated snow surface, μ, m, n and x 4 is at same level line
On, p, n and N are on same vertical line.
Now video camera is taken pictures, and obtains with A ' C ' B ' E ' (respectively correspondingly face ABCE) as summit
The rectangle photo on accumulated snow surface, it can be seen that the top n' point of marking rod is (corresponding real from photo
The red some m' point that place, border accumulated snow surface location n) and infrared ray are mapped on accumulated snow surface is (right
Answer actual field area snow surface position m).If it is corresponding with actual place x, m and n on photo
Point be respectively x', m' and n', owing to x' point is exactly the symmetrical centre point of photo, therefore permissible
Distance x'n' is obtained, due to the distance=reality of accumulated snow surface x point to n point by measuring photo
D point in ground i.e. can get the scaling of photo and actual place to the distance of N point, i.e. xn=DN
RatioOwing to can obtain the distance of m' point and x' point by measuring photo, then lead to
Cross distance mx of the available corresponding actual field area snow surface of scaling k, then have
Nm=nx-mx, wherein nx=ND, ND measures.Owing to Pm is exactly snow depth sensor
The launch point of the infrared ray of injection and infrared ray are mapped to the distance between the point on accumulated snow surface,
Can be obtained by snow depth sensor, away from ground level d, sensor is set to 0, angle of inclination beta sets
Being set to 0 °, now pm=h, i.e. the infrared ray of snow depth sensor injection is to accumulated snow surface
Length Pm is equal to the snow depth value of sensor measurement.Therefore then inclination angleβ is defeated
Enter in snow depth sensor, by drawing snow depth degree.Snow depth degree of depth h=d-cos β × Pm；
Fig. 2 is the application long-range antidote of snow depth sensor angles and unused the method and reality
The comparison diagram of snow depth measured value；
Wherein, during the inclination angle beta change of actual snow depth sensor and vertical direction unused
The snow depth value curve that invention forwarding method is measured；Actual snow depth sensor and the inclination angle of vertical direction
The snow depth value curve that forwarding method of the present invention is measured has been used during degree β change；Abscissa is actual snow depth
Sensor and the inclination angle beta of vertical direction, vertical coordinate is to measure snow depth value h', actual snow depth
Value is h.It can be seen that unused the inventive method calculate snow depth time, along with snow depth sensor with
The inclination angle beta of vertical direction becomes larger, and the slope of curve is increasing, the snow depth i.e. measured
It is worth increasing with actual snow depth value error, and has used the inventive method, along with snow depth sensor
Becoming larger with the inclination angle beta of vertical direction, curve is almost straight line, i.e. measures
Snow depth value is of substantially equal with actual snow depth value.
Claims (5)
1. snow depth of taking precautions against natural calamities a monitoring system, is characterized in that, the vertical pole (1) in system sets perpendicular to the ground
Putting and fixed with ground by backing bottom it, horizontal cross bar (2) left end is fixed on vertical pole (1) top, takes the photograph
Camera (3) is fixed on horizontal cross bar right-hand member perpendicular to the ground, makes camera lens be facing perpendicularly to ground；?
Horizontal cross bar (2) the α angle that is tilted to the right of direction perpendicular to the ground that keeps left at end installs snow depth sensor (4),
The infrared ray making snow depth sensor (4) penetrate arrives the point on ground and reflects with video camera (3) optical center
The point being mapped to ground overlaps；Mount point at snow depth sensor (4) is mapped at ground and arranges marking rod
(5)；Described snow depth sensor (4) is vertical with mounting distance snow depth the to be ensured sensor of video camera (3)
During straight inclined angle alpha=0 °, direction, ground, the infrared ray of injection arrives the point on ground and is still included in video camera
In coverage.
One the most according to claim 1 take precautions against natural calamities snow depth monitoring system, it is characterised in that described
0°<α<90°。
One the most according to claim 1 take precautions against natural calamities snow depth monitoring system, it is characterised in that described
Snow depth sensor can automatically measure the launch point of infrared ray and infrared ray arrive accumulated snow surface point it
Between distance.
One the most according to claim 1 take precautions against natural calamities snow depth monitoring system, it is characterised in that described
Marking rod height > the highest snow depth.
5. a snow depth sensor angles based on snow depth monitoring system of taking precautions against natural calamities described in claim 1 is remotely rectified
Correction method, it is characterised in that described method comprises the steps:
Step 1: measure the snow depth sensor vertical dimension to ground, measure camera lens centralizing mapping
To point and the snow depth sensor maps on ground to the point on ground, the distance between these 2；
Step 2: calculating shot by camera photo reduces ratio with actual place scope；
Step 3: calculate after snow depth sensor and Vertical Square plane inclination change according to the ratio that reduces
Inclination angle；
Step 4: the inclination angle after the change will calculated in step 3 is input in snow depth sensor,
Calculate snow depth value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459186.7A CN104236475B (en) | 2014-09-10 | 2014-09-10 | One is taken precautions against natural calamities snow depth monitoring system and the long-range antidote of snow depth sensor angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459186.7A CN104236475B (en) | 2014-09-10 | 2014-09-10 | One is taken precautions against natural calamities snow depth monitoring system and the long-range antidote of snow depth sensor angles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104236475A CN104236475A (en) | 2014-12-24 |
| CN104236475B true CN104236475B (en) | 2016-09-14 |
Family
ID=52225027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410459186.7A Expired - Fee Related CN104236475B (en) | 2014-09-10 | 2014-09-10 | One is taken precautions against natural calamities snow depth monitoring system and the long-range antidote of snow depth sensor angles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104236475B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084679A (en) * | 2017-03-28 | 2017-08-22 | 无锡信大气象传感网科技有限公司 | The method of measurement snow depth based on laser imaging |
| CN113534297B (en) * | 2021-07-16 | 2023-04-18 | 新疆林科院森林生态研究所 | Device and method capable of accurately monitoring accumulated snow depth of forest in real time |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001083262A (en) * | 1999-09-13 | 2001-03-30 | Yokogawa Electric Corp | Snowfall measuring system |
| CN202562445U (en) * | 2012-03-29 | 2012-11-28 | 中国气象局气象探测中心 | Snow depth multipoint self-operated measuring device based on laser range-finding principle |
| CN103438822A (en) * | 2013-09-11 | 2013-12-11 | 无锡信大气象传感网科技有限公司 | Accumulated snow depth monitoring system based on controllable light source |
-
2014
- 2014-09-10 CN CN201410459186.7A patent/CN104236475B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001083262A (en) * | 1999-09-13 | 2001-03-30 | Yokogawa Electric Corp | Snowfall measuring system |
| CN202562445U (en) * | 2012-03-29 | 2012-11-28 | 中国气象局气象探测中心 | Snow depth multipoint self-operated measuring device based on laser range-finding principle |
| CN103438822A (en) * | 2013-09-11 | 2013-12-11 | 无锡信大气象传感网科技有限公司 | Accumulated snow depth monitoring system based on controllable light source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104236475A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108106801A (en) | Bridge tunnel disease non-contact detection system and detection method | |
| CN111260870B (en) | Accurate target positioning method | |
| CN102175416B (en) | Multi-camera dynamic calibration method for measuring model attitude angle in wind tunnel test | |
| KR101748180B1 (en) | Method and apparatus of measuring size of object in image | |
| CN102661717A (en) | Monocular vision measuring method for iron tower | |
| US20150049187A1 (en) | Method, Device and Computer Programme for Extracting Information About One or More Spatial Objects | |
| CN110610518A (en) | Target pose measurement system and method based on feature point position correction | |
| CN104973092B (en) | A kind of rail subgrade settlement measurement method based on mileage and image measurement | |
| CN104061865B (en) | A kind of navigating ship altitude measurement system and measuring method thereof | |
| CN103234555A (en) | Photoelectric stabilized platform assembly zero calibration method | |
| CN110285770B (en) | Bridge deflection change measuring method, device and equipment | |
| GB2559196A (en) | Determining a position of a vehicle on a track | |
| CN106643567B (en) | A kind of method of calibration and system of lane shift system producing line scaling board | |
| CN106408601A (en) | GPS-based binocular fusion positioning method and device | |
| JP2007322407A (en) | Measuring method for displacement, position, attitude by image processing having background as reference | |
| CN103017666A (en) | Method and assembly for determining the position of a measurement point in geometric space | |
| CN105974398A (en) | Leveling method before radar laser target calibration | |
| CN106979803A (en) | A kind of method of the measurement discharge of river based on unmanned plane of taking photo by plane | |
| CN103148832A (en) | Detection method of installation inclination angle of video camera | |
| CN104236475B (en) | One is taken precautions against natural calamities snow depth monitoring system and the long-range antidote of snow depth sensor angles | |
| CN105527656A (en) | Tower-type airport runway foreign body positioning method | |
| CN103196429A (en) | Method for quickly obtaining and measuring orthophotoquad of city skyline contour line facede | |
| US8230609B1 (en) | Survey pole positioning system | |
| CN104406569B (en) | Radiation brightness and the photogrammetric height of cloud base measuring system for combining and method | |
| Whitehead et al. | Measuring daily surface elevation and velocity variations across a polythermal arctic glacier using ground-based photogrammetry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 |