CN105549125B - Rainfall measuring device, system and method - Google Patents
Rainfall measuring device, system and method Download PDFInfo
- Publication number
- CN105549125B CN105549125B CN201510994357.0A CN201510994357A CN105549125B CN 105549125 B CN105549125 B CN 105549125B CN 201510994357 A CN201510994357 A CN 201510994357A CN 105549125 B CN105549125 B CN 105549125B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- casing
- float
- rainfall
- rainwater
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 76
- 239000013307 optical fiber Substances 0.000 claims abstract description 58
- 239000013308 plastic optical fiber Substances 0.000 claims abstract description 44
- 238000005452 bending Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000002310 reflectometry Methods 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/14—Rainfall or precipitation gauges
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a kind of rainfall measuring device, described device includes：Casing, rainwater-collecting portion, scupper, fibre optical sensor, optical fiber float, slide bar, drain plug；Wherein, the slide bar is fixed on the bottom in the casing；The optical fiber float is arranged on the slide bar, and the optical fiber float slides up and down in the casing under the buoyancy of water along the slide bar；The optical fiber connector of the fibre optical sensor is fixed on the optical fiber float, and bending is produced with the slip of the optical fiber float；The optical fiber connector of the fibre optical sensor is coated with high reflectivity film；The bottom of the casing is provided with discharge outlet, and the drain plug matches and is arranged in the discharge outlet with the discharge outlet；Scupper is provided with the top of the casing, the rainwater-collecting portion is communicated by the scupper with the casing.The invention also discloses rainfall measurement system and method, the present invention carries out rainfall measurement based on plastic optical fiber flexural property, can be reliable in the presence of a harsh environment, accurate, economical, self-timing gathers and measures rainfall.
Description
Technical field
The present invention relates to meteorological observation technical field, more particularly to a kind of rainfall measuring device, system and method.
Background technology
Rainfall estimation is the big event of meteorological observation, and the important observation project of the department such as agricultural, water conservancy, electric power.
Rainfall gauge is a kind of instrument for being used for measuring the precipitation in somewhere in a period of time.At present, electronics tipping-bucket rain-gauge and rainbow
Suction rainfall gauge is relatively conventional.Electronics tipping-bucket rain-gauge needs power supply to power, can job insecurity in rugged environment；Rainbow
Suction rainfall gauge is mostly diary type, need to change recording sheet daily, and hand labor intensity is larger.
The content of the invention
To solve existing technical problem, the embodiment of the present invention provides a kind of rainfall measuring device, system and method,
Being capable of reliable in the presence of a harsh environment, accurate, economic and self-timing collection and measurement rainfall.
To reach above-mentioned purpose, what the technical scheme of the embodiment of the present invention was realized in：
A kind of rainfall measuring device, described device include：Casing, rainwater-collecting portion, scupper, fibre optical sensor, optical fiber
Float, slide bar, drain plug；
Wherein, the slide bar is fixed on the bottom in the casing；The optical fiber float is arranged on the slide bar, described
Optical fiber float slides up and down in the casing under the buoyancy of water along the slide bar；The optical fiber end of the fibre optical sensor
End is fixed on the optical fiber float, and bending is produced with the slip of the optical fiber float；The optical fiber of the fibre optical sensor
End is coated with high reflectivity film；
The bottom of the casing is provided with discharge outlet, and the drain plug matches with the discharge outlet and is arranged on the row
On the mouth of a river；
Scupper is provided with the top of the casing, the rainwater-collecting portion passes through the scupper and the casing phase
It is logical.
Wherein, it is provided with sieve-like screen pack at the upper end open in the rainwater-collecting portion.
Wherein, described device also includes draining float, and the draining float is connected with the drain plug；In the casing
The draining float pulls the drain plug that action is opened and closed under the buoyancy of water；
Wherein, the draining float is connected by bracing wire with the drain plug.
A kind of rainfall measurement system, the system include：Rainfall detection device and above-mentioned rainfall measuring device；The rain
Amount detecting device includes：D/A modular converters, tunable laser, optical circulator, photodetector, A/D modular converters and calculating
Machine；The D/A modular converters are used for the light intensity for the transmitting light for setting the tunable laser；The tunable laser transmitting
Light the optical circulator is entered by the first interface of the optical circulator, and entered by the second interface through the optical circulator
Enter the fibre optical sensor of the rainfall measuring device, the high reflectivity film of the fibre optical sensor optical fiber connector is by most of light
The optical circulator is reflected into again, and enters the photodetector, the light via the 3rd interface of the optical circulator
Electric explorer detects the luminous power data of the interface of optical circulator the 3rd and sent the luminous power data of detection to described
A/D modular converters, by sending the computer after the A/D module processings to, computer is according to current luminous power number
According to current rainfall is calculated.
Wherein, the computer, for establishing the relation between optical power change and water change in advance；And it is used for
The luminous power data that the A/D modular converters currently transmit are received, and are based on changing it according to the optical power change and water
Between relation, obtain the change of current water, and then obtain current rainfall.
A kind of rainfall measuring method, methods described include：
Rainwater is collected by rainwater-collecting portion and enters casing；
In casing under the buoyancy of rainwater, optical fiber float floats upwards along slide bar, the optical fiber connector of fibre optical sensor with
The optical fiber float and produce bending；
The light intensity of the transmitting light of tunable laser, the light that tunable laser is launched are set by D/A modular converters
Optical circulator is entered by the first interface of optical circulator, and passed via the second interface of the optical circulator into the optical fiber
Sensor；
Most of light is reflected into the optical circulator by the high reflectivity film of the fibre optical sensor optical fiber connector again,
And enter photodetector via the 3rd interface of the optical circulator；
The photodetector detects the luminous power data of the interface of optical circulator the 3rd and by the luminous power of detection
Data send A/D modular converters to, by sending computer to after the A/D module processings；
Current rainfall is calculated according to current luminous power data in computer.
Wherein, methods described also includes：The buoyancy float downward of draining float in the casing in rainwater；
When rainwater in the casing exceeds scheduled volume, the draining float draws the drain plug of the bottom half
Rise, the rainwater in the casing is discharged, stop rainfall measurement.
Wherein, methods described also includes：Computer predefines the relation between optical power change and water change；It is described
Current rainfall is calculated according to current luminous power data in computer, including：Receive what the A/D modular converters currently transmitted
Luminous power data, and based on according to the relation between the optical power change and water change, the change of current water is obtained, and then
Obtain current rainfall.
Rainfall measuring device provided in an embodiment of the present invention, system and method, rain is carried out based on plastic optical fiber flexural property
Measurement, can be reliable in the presence of a harsh environment, accurate, economical, self-timing gathers and measures rainfall.
Brief description of the drawings
In accompanying drawing (it is not necessarily drawn to scale), similar reference phase described in different views
As part.Similar reference numerals with different letter suffix can represent the different examples of similar component.Accompanying drawing with example and
Unrestricted mode generally shows each embodiment discussed herein.
Fig. 1 is the composition structural representation of rainfall measuring device of the embodiment of the present invention；
Fig. 2 is the composition structural representation of rainfall measurement system moderate rain amount detecting device of the embodiment of the present invention；
Fig. 3 is the flow chart of rainfall measuring method of the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of rainfall measuring device and method, and rainfall survey is carried out based on plastic optical fiber flexural property
Amount, can be reliable in the presence of a harsh environment, accurate, economical, self-timing gathers and measures rainfall.
In fiber optic communication and sensor-based system, there is bending loss to transmission quality and power budget etc. in plastic optical fiber
Large effect, meanwhile, the research in some new opplication fields can be carried out using the transmission characteristic under plastic optical fiber case of bending, such as
Intensity modulation type fibre optical sensor, there can be the bending loss of use value.Plastic optical fiber bending loss is ground in recent years
Study carefully the great attention for causing people.Meng Xian is micro- et al. (to be managed in Changchun in " tests and analysis of plastic optical fiber bending loss characteristics "
Itd is proposed in work college journal (natural science edition), bending loss becomes with the increase presentation index decreased of bending radius in plastic optical fiber
Gesture.Therefore, the rule that can change based on plastic optical fiber bending loss with bending radius, plastic optical fiber can be based on based on the rule
Flexural property carries out rainfall measurement, is surveyed using influence of the flexural property of plastic optical fiber to optical transport to make optical fiber passive rainfall
Amount device simultaneously provides corresponding measuring method.Fiber optic passive device has that electromagnetism interference, size are small, in light weight, intensity is high, resistance to
High temperature, it is corrosion-resistant the features such as, the measurement that is specifically adapted in adverse circumstances.
As shown in figure 1, the rainfall measuring device of the embodiment of the present invention can include：Plastic optical fiber sensor 1, optical fiber float
2nd, slide bar 3, drain plug 4, draining float 5, bracing wire 6, scupper 7, rainwater-collecting portion 8, casing 9.
The end of plastic optical fiber sensor 1 is coated with high reflectivity film, and on optical fiber float 2, optical fiber float 2 is arranged on
On slide bar 3, the optical fiber float 2 slides up and down in the casing 9 under the buoyancy of water along the slide bar 3, plastic light
The optical fiber connector of fiber sensor 1 is fixed on optical fiber float 2, and bending is produced with the slip of the optical fiber float 2；Plastic light
The optical fiber connector of fiber sensor 1 is coated with high reflectivity film.
The bottom of the casing 9 is provided with discharge outlet (not shown), and drain plug 4 matches and is arranged on the discharge outlet
In the discharge outlet.In practical application, draining float 5 can also be set in casing, draining float 5 is connected with drain plug 4,
In the amount of rainfall water more and more higher of casing 9, the buoyancy of rainwater floats draining float 5, and when rainwater reaches predetermined value, draining is floated
The buoyancy of rainwater is passed to drain plug 4 and can discharge the pull-up of drain plug 4, the interior rainwater collected of casing 9 by son 5.It is actual to answer
In, drain plug 4 can be connected with draining float 5 by bracing wire 6.
Wherein, rainwater-collecting portion 8 is in tubbiness, and bottom bung is entered inside casing 9 by the scupper 7 on the top of casing 9, with
Casing 9 is communicated, and the rainwater being collected into is sent into casing 9.Here, the top bung in rainwater-collecting portion 8 is additionally provided with sieve-like filtering
Net (not shown), to prevent from debris from falling into turn resulting in scupper 7 in rainwater-collecting portion 8 blocking.
Live rain collection is provided without electrical source of power, and the maintenance work to the later stage is also adapted in the region of bad environments
Also reduced with cost.The optical fiber end for being coated with the plastic optical fiber sensor 1 of reflectance coating is attached to one end of optical fiber float 2, and optical fiber floats
Son 2 is fixed between two slide bars 3, will and then be raised with the rise optical fiber float 2 of rate of water added, plastic optical fiber sensor 1
Optical fiber end will produce bending with the rise of optical fiber float 2, and the degree of crook of the optical fiber of plastic optical fiber sensor 1 will change it
Luminous power, by detecting the optical power change of plastic optical fiber sensor 1, changed according to predetermined optical power change and water
Between relation current rainfall can be calculated.
Present invention also offers a kind of rainfall measurement system, the rainfall measurement system includes rainfall as shown in Figure 1 and surveyed
Measure device and rainfall detection device as shown in Figure 2.
As shown in Fig. 2 rainfall detection device includes：D/A modular converters 10, tunable laser 11, optical circulator 12, light
Electric explorer 13, A/D modular converters 14 and computer 14.Wherein, tunable laser 11 is set to launch by D/A modular converters 10
The light intensity of light, the light that tunable laser 11 is launched enter optical circulator 12 by the first interface of optical circulator 12, and by passing through
The second interface of optical circulator 12 enters plastic optical fiber sensor 1, and the optical fiber connector of plastic optical fiber sensor 1 is coated with high reflectance
Film, most of light is reflected into optical circulator 12 by high reflectivity film again, and is entered via the 3rd interface of optical circulator 12
Enter photodetector 13, photodetector 13 detects the luminous power of the interface of optical circulator 12 the 3rd and by the luminous power number of detection
According to sending A/D modular converters 14 to, then send computer 15 after being handled by A/D modular converters 14 to and carry out calculating processing, finally
Obtain current rainfall.
The rainfall measurement system of the embodiment of the present invention sets tunable laser 11 to launch the light of light by D/A modular converters 10
By force, light is coated with high reflection by entering plastic optical fiber sensor 1, the optical fiber connector of plastic optical fiber sensor 1 after optical circulator 12
Rate film, light produce reflected light after being reflected by the high reflectivity film of optical fiber connector after entering plastic optical fiber sensor 1, reflected
Light returns to optical circulator 12 by plastic optical fiber sensor 1, and enters photodetector 13, and photodetector 13 detects reflected light
Luminous power, then computer 15 is given after being handled by A/D modular converters 14 and carries out calculating processing.
And then raised with the rise optical fiber float of rate of water added, it is different degrees of that different waters can cause plastic optical fiber to carry out
Bending, and different bending radius correspond to different reception light intensity.By computer 15 establish water and bending radius it
Between corresponding relation and the corresponding relation established between light intensity and bending radius, and then it is light to establish water with light intensity change
Relation between changed power is simultaneously stored in computer 15, you can is detecting the current fiber end reflections of plastic optical fiber sensor 1
Current rainfall is calculated after the luminous power of light.
Specifically, the value for setting D/A modular converters 10 is a certain fixed value, make the luminous power of tunable laser 11 steady
Fixed, before single mode plastic optical fiber sensor 1 is not bent, the light that is exported by the 3rd interface of optical circulator 12 is reference light, photoelectricity
Detector 13 detects the now luminous power of reference light and is sent into computer 15 after being changed by A/D modular converters 14, and by plastics
1 unbent radius of fibre optical sensor record deposit computer 15.
Rainwater is gathered, and rainwater is poured into rainwater-collecting portion 8, rainwater is entered in casing 9 by scupper 7, records water,
And then raised with the rise optical fiber float 2 of rate of water added, cause the different degrees of bending of the optical fiber of plastic optical fiber sensor 1.Collection
After rainwater, the light exported by the 3rd interface of optical circulator 12 is to produce reflected light after bending, and photodetector 13 detects
The luminous power in this time simultaneously passes through feeding computer 15 after the conversion of A/D modular converters 14.The optical fiber of plastic optical fiber sensor 1 produces
Luminous power after bending every time is tested during different degrees of bending and is passed through after A/D modular converters 14 are changed and is sent into computer 15.
Computer 15 is according to the luminous power data of multiple test record, and the loss as caused by bending is with the change of differently curved radius
Relation, and the water data recorded during multiple test, the corresponding relation established between optical power change and water change.
After plastic optical fiber bending, always occur to become along the energy radiation in bending radius direction, original fiber waveguide
For tunnelling ray, refraction mould, so as to cause bending loss, bending loss can be divided into macrobending loss and microbending loss.Plastic optical fiber
Macrobending loss is mainly derived from space filtering, mold leakage and Mode Coupling caused by bending, wherein being made with Spatial Filtering Effect
Into loss based on.Due to numerous patterns be present in plastic optical fiber, therefore it is difficult to expressed with Uniform Formula micro-bend caused
Loss.Theory analysis shows, generally, micro-bend to make to produce coupling between neighboring modes, couples stronger, micro-bend damage
Consumption is also bigger and relevant with micro-bend shape.
Theoretical according to D.Marcuse, when bending radius is R, bending loss coefficient is as shown in following formula (1)：
Wherein, u, W are respectively radially normalization phase constant and radially normalization attenuation constant, and β is axial propagation constant,
α is fiber core radius, and V is normalized frequency, kmIt is m rank modified Bessel functions.As can be seen that fibre-optical bending caused by loss according to
Rely in bending radius, fiber core radius and sandwich layer, cladding index.After plastic optical fiber determines, fiber core radius and sandwich layer, covering folding
Penetrate the parameters such as rate just to determine one by one, now loss is only relevant with bending radius caused by fibre-optical bending.
If use I0(α) represents the input optical power of plastic optical fiber, I∞(α) represents the output light work(of straight plastic optical fiber
Rate, α∞(α) represents the straight Transmission loss of plastic optical fiber, IRPlastic optical fiber is defeated when (α) expression bending curvature radius is R
Light power, αR(α) represents the straight Transmission loss of plastic optical fiber, then pure bending loss factor can lead to as caused by bending
Following formula (2) such as is crossed to draw：
Computer 15 obtains according to formula (1) and the relation of formula (2), and water data, the luminous power data recorded during test
Relation between optical power change and water change.After current luminous power is obtained, become according to optical power change and water
Relation between change, you can current rainfall is calculated.
As shown in figure 3, the embodiment of the present invention additionally provides a kind of rainfall measuring method, this method comprises the following steps：
Step 301：Rainwater is collected by rainwater-collecting portion and enters casing；
Step 302：In casing under the buoyancy of rainwater, optical fiber float floats upwards along slide bar, the light of fibre optical sensor
Fine end produces bending with the optical fiber float；
Step 303：The light intensity of the transmitting light of tunable laser, tunable laser hair are set by D/A modular converters
The light of injection enters optical circulator by the first interface of optical circulator, and enters institute via the second interface of the optical circulator
State fibre optical sensor；
Step 304：Most of light is reflected into described by the high reflectivity film of the fibre optical sensor optical fiber connector again
Optical circulator, and enter photodetector via the 3rd interface of the optical circulator；
Step 305：The photodetector detects the luminous power data of the interface of optical circulator the 3rd and will detection
Luminous power data send A/D modular converters to, by sending computer to after the A/D module processings；
Step 306：Current rainfall is calculated according to current luminous power data in computer.
Specifically, computer predefines the relation between optical power change and water change；The computer according to work as
Current rainfall is calculated in preceding luminous power data, including：The luminous power data that the A/D modular converters currently transmit are received,
And based on according to the relation between the optical power change and water change, current water change is obtained, and then obtain current rain
Amount.
Computer predefines the detailed process of relation between optical power change and water change as described above, no longer superfluous
State.
Wherein, methods described can also include：
Step 307：The buoyancy float downward of draining float in the casing in rainwater；Rainwater in the casing
During beyond scheduled volume, the rainwater in the casing is discharged, stopped by the draining float by the drain plug pull-up of the bottom half
Only rainfall measurement.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (9)
1. a kind of rainfall measuring device, it is characterised in that described device includes：Casing, rainwater-collecting portion, scupper, plastic light
Fiber sensor, optical fiber float, slide bar, drain plug；
Wherein, the slide bar is fixed on the bottom in the casing；The optical fiber float is arranged on the slide bar, the optical fiber
Float slides up and down in the casing under the buoyancy of water along the slide bar；The optical fiber end of the plastic optical fiber sensor
End is fixed on the optical fiber float, and bending is produced with the slip of the optical fiber float；The plastic optical fiber sensor
Optical fiber connector is coated with high reflectivity film；
The bottom of the casing is provided with discharge outlet, and the drain plug matches with the discharge outlet and is arranged on the discharge outlet
On；
Scupper is provided with the top of the casing, the rainwater-collecting portion is communicated by the scupper with the casing.
2. device according to claim 1, it is characterised in that be provided with sieve-like at the upper end open in the rainwater-collecting portion
Screen pack.
3. device according to claim 1, it is characterised in that described device also includes draining float, the draining float
It is connected with the drain plug；The draining float pulls the drain plug to be opened and closed under the buoyancy of water in the casing
Action.
4. device according to claim 3, it is characterised in that the draining float is connected by bracing wire and the drain plug
Connect.
5. a kind of rainfall measurement system, it is characterised in that the system includes：Rainfall detection device and such as Claims 1-4 times
Rainfall measuring device described in one；
The rainfall detection device includes：D/A modular converters, tunable laser, optical circulator, photodetector, A/D conversions
Module and computer；
The D/A modular converters are used for the light intensity for the transmitting light for setting the tunable laser；The tunable laser hair
The light penetrated enters the optical circulator by the first interface of the optical circulator, and by the second interface through the optical circulator
Into the plastic optical fiber sensor of the rainfall measuring device, the high reflectivity film of the plastic optical fiber sensor optical fiber connector
Most of light is reflected into the optical circulator again, and enters the photodetection via the 3rd interface of the optical circulator
Device, the photodetector detect the luminous power data of the interface of optical circulator the 3rd and pass the luminous power data of detection
The A/D modular converters are given, by sending the computer after the A/D module processings to, computer is according to current
Current rainfall is calculated in luminous power data.
6. system according to claim 5, it is characterised in that the computer, in advance establish optical power change with
Relation between water change；And the luminous power data currently transmitted for receiving the A/D modular converters, and it is based on root
According to the relation between the optical power change and water change, current water change is obtained, and then obtain current rainfall.
7. a kind of rainfall measuring method, it is characterised in that methods described includes：
Rainwater is collected by rainwater-collecting portion and enters casing；
In casing under the buoyancy of rainwater, optical fiber float floats upwards along slide bar, the optical fiber connector of plastic optical fiber sensor with
The optical fiber float and produce bending；
The light intensity of the transmitting light of tunable laser is set by D/A modular converters, and the light that tunable laser is launched passes through
The first interface of optical circulator enters optical circulator, and is passed via the second interface of the optical circulator into the plastic optical fiber
Sensor；
Most of light is reflected into the optical circulator by the high reflectivity film of the plastic optical fiber sensor optical fiber connector again,
And enter photodetector via the 3rd interface of the optical circulator；
The photodetector detects the luminous power data of the interface of optical circulator the 3rd and by the luminous power data of detection
A/D modular converters are sent to, by sending computer to after the A/D module processings；
Current rainfall is calculated according to current luminous power data in computer.
8. according to the method for claim 7, it is characterised in that methods described also includes：
The buoyancy float downward of draining float in the casing in rainwater；
When rainwater in the casing exceeds scheduled volume, the draining float, will by the drain plug pull-up of the bottom half
Rainwater discharge in the casing, stops rainfall measurement.
9. according to the method for claim 7, it is characterised in that
Methods described also includes：Computer predefines the relation between optical power change and water change；
Current rainfall is calculated according to current luminous power data in the computer, including：The A/D modular converters are received to work as
The luminous power data of preceding transmission, and based on according to the relation between the optical power change and water change, obtain current water
Change, and then obtain current rainfall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994357.0A CN105549125B (en) | 2015-12-28 | 2015-12-28 | Rainfall measuring device, system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994357.0A CN105549125B (en) | 2015-12-28 | 2015-12-28 | Rainfall measuring device, system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105549125A CN105549125A (en) | 2016-05-04 |
| CN105549125B true CN105549125B (en) | 2018-03-16 |
Family
ID=55828424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510994357.0A Active CN105549125B (en) | 2015-12-28 | 2015-12-28 | Rainfall measuring device, system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105549125B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082843B (en) * | 2019-06-05 | 2021-11-16 | 广西师范大学 | Inclined float type siphon weak reflection fiber grating rain gauge and rain gauge array |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424562A (en) * | 2008-12-04 | 2009-05-06 | 深圳太辰光通信有限公司 | Essential explosion-proof liquid level detection device and method |
| CN101839748A (en) * | 2009-10-22 | 2010-09-22 | 上海华魏光纤传感技术有限公司 | Reflecting type digital code type all-optical fiber liquid level sensing device |
| CN103345004A (en) * | 2013-06-17 | 2013-10-09 | 华中科技大学 | Rainfall monitoring network and rainfall monitoring method through utilization of fiber bragg grating hydrocone type rain gauge |
-
2015
- 2015-12-28 CN CN201510994357.0A patent/CN105549125B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424562A (en) * | 2008-12-04 | 2009-05-06 | 深圳太辰光通信有限公司 | Essential explosion-proof liquid level detection device and method |
| CN101839748A (en) * | 2009-10-22 | 2010-09-22 | 上海华魏光纤传感技术有限公司 | Reflecting type digital code type all-optical fiber liquid level sensing device |
| CN103345004A (en) * | 2013-06-17 | 2013-10-09 | 华中科技大学 | Rainfall monitoring network and rainfall monitoring method through utilization of fiber bragg grating hydrocone type rain gauge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105549125A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105444990B (en) | A kind of dynamic corrections device and method of test light insertion loss and Optical Return Loss | |
| CN109029769A (en) | High-precision temperature demodulation method based on distributed fiber Raman sensing technology | |
| CN109269535A (en) | Ocean multi-parameter integrated monitoring system and method based on micro-nano optical fiber half-coupler | |
| CN106643842A (en) | Distributed sensor and sensing method | |
| CN106197492A (en) | Fa-Po cavity length based on Optical Fiber Composite Fa-Po cavity structure and refractive index computational methods | |
| CN105043264A (en) | Fiber optic displacement sensor based on macro-bending loss effect | |
| CN202257801U (en) | Continuous optical wave adaptive large-dynamic-range signal processing module for optical fiber sensing system | |
| CN105549125B (en) | Rainfall measuring device, system and method | |
| CN110887525A (en) | CTD sensing array based on micro-nano optical fiber coupler SAGNAC ring | |
| CN202453113U (en) | Sensor for measuring temperature and salinity of seawater based on fibre Bragg grating (FBG) | |
| CN108254100B (en) | Optical fiber sensing liquid refractive index and temperature simultaneous measurement system and measurement method | |
| CN203672771U (en) | Optical fiber humidity sensor based on offset fusion splicing | |
| CN102645320A (en) | Plastic optical fiber transmission loss nondestructive detection method | |
| CN205537696U (en) | Steel construction strategic locations stress and strain monitoring and early warning system | |
| CN206469893U (en) | A kind of distributed sensor | |
| CN111323061A (en) | Disposable optical fiber depth thermometer measuring system | |
| CN104251844B (en) | A kind of hyperchannel seawater transparency measurement mechanism and method thereof | |
| CN204855016U (en) | Optics jettisons formula ocean temperature depth [record] section accuracy of measurement | |
| CN204758163U (en) | Perpendicular sea temperature measuring apparatu | |
| CN114719950A (en) | Step-by-step optical fiber multi-dimensional characteristic parameter acquisition and extraction method | |
| CN203981244U (en) | A kind of liquid level sensor based on thin core inclined optical fiber grating | |
| CN200968934Y (en) | Fiber surface plasma resonance based soil moisture sensor | |
| CN207008074U (en) | A kind of dual-core fiber seismic geophone of high sensitivity | |
| CN102128810B (en) | Seawater salinity detection device with prism model capable of refracting for multiple times | |
| CN207423316U (en) | Optical fiber liquid level sensing device based on capture card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 570311 Hai Rui Road, Longhua District, Haikou, Hainan Province, No. 23 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. Address before: 570000 13 floor, Xin Heng mansion, 123-8 Binhai Road, Longhua District, Haikou, Hainan. Patentee before: Hainan Power Technology Research Institute |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231206 Address after: Room 506, Huayu Building, Haifu Yiheng Road, Meilan District, Haikou City, Hainan Province, 571100 Patentee after: Hainan Electric Power Industry Development Co.,Ltd. Address before: 570311 Hai Rui Road, Longhua District, Haikou, Hainan Province, No. 23 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. |