CN202126501U - Automatic snow depth measuring device based on laser sensor - Google Patents
Automatic snow depth measuring device based on laser sensor Download PDFInfo
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- CN202126501U CN202126501U CN2011202280352U CN201120228035U CN202126501U CN 202126501 U CN202126501 U CN 202126501U CN 2011202280352 U CN2011202280352 U CN 2011202280352U CN 201120228035 U CN201120228035 U CN 201120228035U CN 202126501 U CN202126501 U CN 202126501U
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Abstract
The utility model provides an automatic snow depth measuring device based on a laser sensor, which comprises a laser distance measuring sensor, a support, a ground reference board, a data processing unit, a communication unit and an automatic weather station or a terminal computer. Output signals of the laser distance measuring sensor are collected and processed by the data processing unit and input into the automatic weather station or the terminal computer through the communication unit. The laser distance measuring sensor is installed on the support which is fixed on the ground, the ground reference board is horizontally installed, and an optical lens of the laser distance measuring sensor is arranged opposite to the ground reference board. The automatic snow depth measuring device can obtain real-time, high precision and stable measuring data, and is simple in structure and low in cost.
Description
Technical field
The utility model relates to the meteorological observation field, the particularly a kind of device that can measure snow depth automatically.
Background technology
Snow depth is an important observation data in the aerological sounding, and what snow depth was measured is the vertical range that the accumulated snow surface arrives ground.Conventional measurement is to adopt common gage to be inserted in the observation place, and the scale mark of observing the snow face bury through manual work is normally centimetre being unit.Traditional this observation procedure is wasted time and energy, and stochastic error is big, and operation easier is big during inclement weather, is difficult to realize real-time monitoring.The method that adopts image recognition is also arranged, replace the artificial image of gathering snow scale, calculate dark snow scale and the relation of Bai Xue through image recognition software then, draw the degree of depth of snow through camera.Though this method can be real-time obtains the snow depth data,, under the situation of heavy snow or low visibility, the error of IMAQ is very big, and view data to take storage space big, the counting yield of computing machine is also low.Also have through the method for ultrasonic ranging and measure snow depth, because ultrasonic sensor receives Effect of Environmental such as temperature, wind bigger, measurement result is not very stable.
Summary of the invention
Current artificial observation snow depth method wastes time and energy in order to solve, error is big; Can't realize the problem of real-time monitored, the utility model provides a kind of device that can realize the automatic measurement snow depth, can be in real time, high precision, stable acquisition measurement data; And it is simple in structure, with low cost.
The utility model solves the technical scheme that its technical matters adopted:
A kind of automatic snow survey based on laser sensor installs deeply; It is characterized in that: this device comprises laser range sensor, support, ground reference plate, data processing list, communication unit, automatic weather station or terminal computer; The output signal of said laser range sensor is through data processing unit collection and processing, and through communication unit input automatic weather station or terminal computer; Said laser range sensor is rack-mount, and support fixes on the ground, and the ground reference plate level is installed on the ground, and the optical lens of laser range sensor and ground reference plate are oppositely arranged.
When laser range sensor records the snow face after the distance of laser probe, deduct the snow face with laser probe to the initial distance of ground reference plate and obtain snow depth to the distance of laser probe.Through communication unit the correlation behavior parameter of snow depth is sent to automatic weather station or terminal computer then.Whenever at a distance from emission in 5 seconds once, per minute obtains 12 data to laser signal, removes singular value, and remaining data is made the data that arithmetic on average obtains current minute then.Simultaneously, record current environment temperature by temperature sensor, read in single-chip microcomputer, the data after the wherethrough reason will be sent along with parameters such as states together then.
The utility model is compared prior art and is had following beneficial effect:
The utility model can be realized the automatic measurement of snow depth, the method for the manual measurement snow depth that has replaced wasting time and energy, and the measurement data of acquisition has real-time, high-precision characteristics, and this apparatus structure is simple, and is with low cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the surface structure synoptic diagram of the utility model.
Fig. 2 is the principle of work process flow diagram of the utility model.
Fig. 3 is a laser snow depth working sensor principle schematic.
Among Fig. 1: the 1-base; The 2-support; 3-data processing and communication unit; The 4-web member; The 5-laser range sensor; 6-ground reference plate; 7-automatic weather station or terminal computer.
Embodiment
In Fig. 1, laser range sensor (5) is installed on the support (2) through web member (4), and control and communication unit (single-chip microcomputer) (3) are installed on the support (2), and ground reference plate (6) level is installed and be concordant with ground.Data processing unit (adopting single-chip microcomputer msp430) links to each other with automatic weather station or terminal computer (7) through communication unit (RS-232 interface).
In Fig. 2; After laser range sensor (5) records the range information of the snow face on the ground reference plate (6); Send to data processing unit, the process data processing unit is converted into the degree of depth of snow, again relevant information is sent to automatic weather station or terminal computer (7) through communication unit.
In Fig. 3, laser snow depth working sensor principle is that through the phase differential judging distance that detection laser transmits and receives, the lasing light emitter of high stability is to obtain the key that the precise phase difference detects.Object is detected by laser pickoff the echoed signal of laser, and through amplifier, the one tunnel delivers to the laser intensity testing circuit, and one the tunnel delivers to phase difference detector.Processor utilizes the variation of laser intensity signal to discern from the echo of snow face.The frequency standard signal utilization of phase difference detector transmits and carries out obtaining behind the frequency multiplication of phase locked loop; Frequency standard signal is by rolling counters forward; The gate-control signal of counting is undertaken producing behind the phase demodulation by transmitting and receiving signal, and the count value that counting circuit obtains is calculated into distance by processor.
Through temperature detection and control to laser instrument, can make the emissive power of laser instrument remain on stable status, help obtaining more stable echoed signal, avenge the identification of face echo reliably.Through the self-correcting circuit, can carry out detection feedback to output power on the one hand, be used for measuring the phase drift that receives the amplifying circuit generation on the other hand, improve the accuracy of phase measurement.
Claims (1)
1. the automatic snow survey based on laser sensor installs deeply; It is characterized in that: this device comprises laser range sensor, support, ground reference plate, data processing list, communication unit, automatic weather station or terminal computer; The output signal of said laser range sensor is through data processing unit collection and processing, and through communication unit input automatic weather station or terminal computer; Said laser range sensor is rack-mount, and support fixes on the ground, and the ground reference plate level is installed on the ground, and the optical lens of laser range sensor and ground reference plate are oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202280352U CN202126501U (en) | 2011-06-30 | 2011-06-30 | Automatic snow depth measuring device based on laser sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202280352U CN202126501U (en) | 2011-06-30 | 2011-06-30 | Automatic snow depth measuring device based on laser sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126501U true CN202126501U (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202280352U Expired - Fee Related CN202126501U (en) | 2011-06-30 | 2011-06-30 | Automatic snow depth measuring device based on laser sensor |
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| Country | Link |
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| CN (1) | CN202126501U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330048A (en) * | 2014-11-28 | 2015-02-04 | 南京理工大学 | Image-based railway snow depth measurement device and method |
| CN104567713A (en) * | 2014-12-29 | 2015-04-29 | 南京理工大学 | Multi-spot snow-depth measuring method and device |
| CN104613892A (en) * | 2014-12-31 | 2015-05-13 | 中国铁路总公司 | Video detection technology and laser ranging technology integrated compound snow depth monitoring system |
| JP2019158846A (en) * | 2018-03-16 | 2019-09-19 | 株式会社デンソーウェーブ | Snow accumulation detection device and snow accumulation detection system |
-
2011
- 2011-06-30 CN CN2011202280352U patent/CN202126501U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330048A (en) * | 2014-11-28 | 2015-02-04 | 南京理工大学 | Image-based railway snow depth measurement device and method |
| CN104567713A (en) * | 2014-12-29 | 2015-04-29 | 南京理工大学 | Multi-spot snow-depth measuring method and device |
| CN104567713B (en) * | 2014-12-29 | 2017-08-04 | 南京理工大学 | A kind of multiple spot snow depth measuring method and device |
| CN104613892A (en) * | 2014-12-31 | 2015-05-13 | 中国铁路总公司 | Video detection technology and laser ranging technology integrated compound snow depth monitoring system |
| CN104613892B (en) * | 2014-12-31 | 2017-12-12 | 中国铁路总公司 | Merge the compound snow depth monitoring system of video detection technology and laser ranging technique |
| JP2019158846A (en) * | 2018-03-16 | 2019-09-19 | 株式会社デンソーウェーブ | Snow accumulation detection device and snow accumulation detection system |
| JP7021576B2 (en) | 2018-03-16 | 2022-02-17 | 株式会社デンソーウェーブ | Snow cover detection device and snow cover detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yunping Inventor after: Wang Bailin Inventor after: Zhuang Wei Inventor after: Gu Hejun Inventor before: Liu Yunping Inventor before: Gu Hejun Inventor before: Zhuang Wei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU YUNPING GU HEJUN ZHUANG WEI TO: LIU YUNPING WANG BOLIN ZHUANG WEI GU HEJUN |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20130630 |