CN109932759A - Rainfall gauge - Google Patents
Rainfall gauge Download PDFInfo
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- CN109932759A CN109932759A CN201910260159.XA CN201910260159A CN109932759A CN 109932759 A CN109932759 A CN 109932759A CN 201910260159 A CN201910260159 A CN 201910260159A CN 109932759 A CN109932759 A CN 109932759A
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Abstract
The present invention provides a kind of rainfall gauges, are related to precipitation gage measuring appratus apparatus field.The rainfall gauge includes: water receiving funnel, inner funnel, U-tube measuring cylinder, water-level float and water level sensor；The U-tube measuring cylinder includes the first measuring cylinder and the second measuring cylinder, and first measuring cylinder is identical with the cylinder radius of second measuring cylinder, and first measuring cylinder is connected to the bottom of second measuring cylinder；Wherein, the inner funnel is arranged in below the water outlet of the water receiving funnel, and the water outlet of the inner funnel connects the water inlet of first measuring cylinder；The water outlet port radius of the water receiving funnel is greater than the water inlet port radius of first measuring cylinder；Water-level float is arranged in the inside of second measuring cylinder, and the water level sensor is set to the surface of water-level float in second measuring cylinder, the water level of the U-tube measuring cylinder is measured with the position based on the water-level float.The rainfall gauge improves the measurement accuracy of rainfall.
Description
Technical field
The present invention relates to precipitation gage measuring appratus apparatus fields, more particularly, to a kind of rainfall gauge.
Background technique
Precipitation is a kind of important meteorological element, and the observation of precipitation is either for meteorology, the hydrology, ocean, environment
Observation still all has great importance to the safety of aviation, railway traffic.Rainfall gauge (rainfall recorder, or amount rain
Meter, rain gage) be a kind of important instrument for measuring the precipitation in somewhere in a period of time, its measurement accuracy and for
The broad applicability of various raininess conditions is directly related to the accuracy and reliability of measured data, seems to rainfall observation
It is particularly important.
There are many udometric type, common are siphon rainfall recorder, weighing type rain gauge, tipping-bucket rain-gauge etc., mesh
Preceding udometric principal mode is based on tipping bucket type.But the problem that tipping-bucket rain-gauge is low there is also measurement accuracy.Therefore,
How udometric measurement accuracy is improved as urgent problem to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of rainfall gauge, by keeping the water outlet port radius of water receiving funnel big
Rain is improved in the water inlet port radius of the first measuring cylinder of U-tube measuring cylinder to realize the physics amplification to the water level that measured rainfall
The measurement accuracy of meter.
In a first aspect, the embodiment of the invention provides a kind of rainfall gauges, comprising: water receiving funnel, inner funnel, U-tube measurement
Cylinder, water-level float and water level sensor；The U-tube measuring cylinder includes the first measuring cylinder and the second measuring cylinder, and described first surveys
Graduated cylinder is identical with the cylinder radius of second measuring cylinder, and first measuring cylinder is connected to the bottom of second measuring cylinder；
Wherein, the water inlet of the water receiving funnel is cylindrical；The inner funnel is arranged in below the water outlet of the water receiving funnel, institute
The water outlet for stating inner funnel connects the water inlet of first measuring cylinder；The water inlet port radius of the water receiving funnel is greater than described the
The water inlet port radius of one measuring cylinder；Water-level float is arranged in the inside of second measuring cylinder, and the water level sensor is set to institute
The surface of water-level float in the second measuring cylinder is stated, the U-tube measuring cylinder is measured with the position based on the water-level float
Water level.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein also
Including water receiving solenoid valve, the water receiving solenoid valve is set to the water outlet of the water receiving funnel.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein institute
The bottom for stating the first measuring cylinder and second measuring cylinder is provided with measuring cylinder water outlet.
The possible embodiment of second with reference to first aspect, the embodiment of the invention provides the third of first aspect
Possible embodiment, wherein further include water draining beak, the measuring cylinder water outlet is also connected with the water draining beak.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein further include drain solenoid valve, the drain solenoid valve is mounted on the water draining beak and the measurement
The junction of cylinder water outlet.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein also
Including the control unit being connect with the water level sensor；The water level sensor is also used to measure obtained water level numerical value letter
Breath is sent to described control unit.
The 5th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 6th kind of first aspect
Possible embodiment, wherein the rainfall gauge further includes water receiving solenoid valve and drain solenoid valve, and described control unit is also distinguished
It is connected with the water receiving solenoid valve and the drain solenoid valve, described control unit is also used to control the water receiving solenoid valve and institute
State the open and-shut mode of drain solenoid valve.
With reference to first aspect and first aspect the first any one of to the 6th kind of possible embodiment, the present invention
Embodiment provides the 7th kind of possible embodiment of first aspect, wherein the barrel of first measuring cylinder and described
The barrel of two measuring cylinders mutually attaches.
With reference to first aspect, the embodiment of the invention provides the 8th kind of possible embodiments of first aspect, wherein institute
It is flat for stating the bottom connectivity part of the first measuring cylinder and second measuring cylinder.
With reference to first aspect, the embodiment of the invention provides the 9th kind of possible embodiments of first aspect, wherein institute
State the precision for the water level numerical information that water level sensor measurement obtains and the water inlet port radius and described first of the water receiving funnel
The water inlet port radius of measuring cylinder is related.
The embodiment of the invention provides a kind of rainfall gauges, comprising: water receiving funnel, inner funnel, U-tube measuring cylinder, water level are floating
Son and water level sensor；U-tube measuring cylinder includes the first measuring cylinder and the second measuring cylinder, the first measuring cylinder and the second measuring cylinder
Cylinder radius is identical, and the first measuring cylinder is connected to the bottom of the second measuring cylinder；Wherein, the water outlet of water receiving funnel is arranged in inner funnel
Below mouthful, the water outlet of inner funnel connects the water inlet of the first measuring cylinder；The water outlet port radius of water receiving funnel is greater than the first measurement
The water inlet port radius of cylinder；Water-level float is arranged in the inside of second measuring cylinder, and water level sensor is set to water level in the second measuring cylinder
The surface of float, with the water level of the position measurement U-tube measuring cylinder based on water-level float.The rainfall gauge is by making water receiving funnel
Water outlet port radius be greater than U-tube measuring cylinder the first measuring cylinder water inlet port radius, to realize the object to the water level that measured rainfall
Reason amplification, improves the measurement accuracy of rainfall.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of rainfall gauge that the embodiment of the present invention one provides；
Fig. 2 is a kind of water receiving funnel that the embodiment of the present invention one provides；
Fig. 3 is a kind of rainfall gauge provided by Embodiment 2 of the present invention；
Fig. 4 is a kind of rainfall gauge that the embodiment of the present invention three provides.
Icon: 1- water receiving funnel；2- inner funnel；3-U type pipe measuring cylinder；4- water-level float；5- water level sensor；6- water receiving
Solenoid valve；7- water draining beak；8- drain solenoid valve；9-U type pipe measuring cylinder high limit；10- shell；11- control unit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
There are many existing rainfall gauge types, siphon rainfall recorder, weighing type rain gauge and tipping-bucket rain-gauge etc.,
Current udometric principal mode is based on tipping bucket type.Rainfall can be converted to the table in the form of switching value by tipping-bucket rain-gauge
The amount of digital information output shown.The working principle of tipping-bucket rain-gauge are as follows: rainwater enters raingauge receiver by the mouth of a river of holding of the top, falls
Enter water receiving funnel, flows into tipping bucket through bell mouth, when water accumulating volume reach a certain height (such as 0.1 millimeter), tipping bucket disequilibrium
It overturns.And tipping bucket is toppled over each time, all makes switch connection circuit, conveys a pulse signal to logger, logger control is certainly
Note pen gets off rainfall record, and and so on rainfall measurement can be got off.According to the design principle of tipping-bucket rain-gauge
It is found that it mainly utilizes fixed volume to convert, overturning is 0.1mm every time, and counting is controlled by balancing, reaches measurement rainfall
Purpose.Therefore the tipping-bucket rain-gauge problem relatively low there is also measurement accuracy, be mainly reflected in: measured value is discontinuous, deposits
In the measurement error of a tipping bucket rainfall, because tipping bucket often topples over once one pulse signal of output, when the rainfall in tipping bucket does not have
Have when reaching overturning, the rainfall in tipping bucket is not included in rainfall measurement value.There are invalid rainfall, keep measurement result less than normal, are turning over
It struggles against in switching process, if going back rain in water receiving funnel, a portion rainwater will be and then lost in overturning, this part rainwater
It is invalid to be considered as, and not within counting, this results in final measurement result less than normal.
Based on this, a kind of rainfall gauge provided in an embodiment of the present invention, comprising: water receiving funnel, inner funnel, U-tube measuring cylinder,
Water-level float and water level sensor；Rainwater can flow through inner funnel by water receiving funnel in real time, and flow into U-tube measuring cylinder,
It is discontinuous and there are problems that invalid rainfall to avoid measured value existing for tipping-bucket rain-gauge；Due to the water inlet of water receiving funnel
Port radius is greater than the water inlet port radius of the first measuring cylinder of U-tube measuring cylinder, so the water level numerical value that rainfall gauge measurement obtains is
Numerical value after being amplified, and radius it is smaller graduated cylinder measurement accuracy it is higher, therefore, which can be used for improving rainfall
Measurement accuracy.
To be carried out first to a kind of rainfall gauge disclosed in the embodiment of the present invention detailed convenient for understanding the present embodiment
It introduces.
Embodiment one:
The embodiment of the invention provides a kind of rainfall gauges, as shown in Figure 1, comprising: water receiving funnel 1, inner funnel 2, U-tube are surveyed
Graduated cylinder 3, water-level float 4 and water level sensor 5.U-tube measuring cylinder 3 includes the first measuring cylinder and the second measuring cylinder, the first measurement
Cylinder is identical with the cylinder radius of the second measuring cylinder, and the first measuring cylinder is connected to the bottom of the second measuring cylinder.
Wherein, the water inlet of water receiving funnel 1 is cylindrical；Inner funnel 2 is arranged in below the water outlet of water receiving funnel 1, interior
The water outlet of funnel 2 connects the water inlet of the first measuring cylinder；The water inlet port radius of water receiving funnel 1 is greater than the water inlet of the first measuring cylinder
Port radius.
As shown in Fig. 2, the water inlet of water receiving funnel 1 is in the shape of cylinder, after rainwater falls into water receiving funnel 1, from water receiving
The water outlet of funnel 1 flows out, and then flows into inner funnel 2, and the bell mouth of inner funnel 2 is below the water outlet of water receiving funnel 1, rain
Water enters in the first measuring cylinder of U-tube measuring cylinder 3 from the outflow of the water outlet of inner funnel 2.
Since the first measuring cylinder is connected to the bottom of the second measuring cylinder, rainwater can enter second from the first measuring cylinder and survey
In graduated cylinder.Inner funnel 2 is provided between water receiving funnel 1 and U-tube measuring cylinder 3, so that 3 both ends of U-tube measuring cylinder are and greatly
Gas is directly connected to, regardless of whether rain is flowed into real time in the first measuring cylinder, is all satisfied the first measuring cylinder of U-tube measuring cylinder 3
It is equal with the second measuring cylinder opening air pressure, i.e. the first measuring cylinder and the equal external physical condition of the second measuring cylinder water level.
Since the first measuring cylinder is identical with the radius of the second measuring cylinder, when rainwater flows into U-tube measuring cylinder 3, first is surveyed
Graduated cylinder and the water level of the second measuring cylinder are identical.Since the water inlet port radius of water receiving funnel 1 is greater than the water inlet half of the first measuring cylinder
Diameter, its smaller measurement accuracy of the radius of graduated cylinder can be higher, and rainwater enters U-tube measuring cylinder 3 by water receiving funnel 1 and inner funnel 2
Afterwards, quilt can be realized by the proportionate relationship between the water inlet port radius of water receiving funnel 1 and the water inlet port radius of the first measuring cylinder
The physics amplification to measure rainfall, to improve Precipitation measurement precision.
Water-level float 4 is arranged in the inside of second measuring cylinder, and water level sensor 5 is set to water-level float in the second measuring cylinder
Surface, with the water level based on the position of water-level float 4 measurement U-tube measuring cylinder.
Due to connection inner funnel 2 water outlet be the first measuring cylinder water inlet, and water-level float 4 be located at second measurement
In cylinder, avoids and caused significantly during rainwater enters U-tube measuring cylinder 3 because water-level float 4 is by water impact
Float up and down, realize in measuring cylinder water level continuous-stable measure.
Water level sensor 5 is located at the surface of water-level float 4 in the second measuring cylinder, for the position according to water-level float 4
The water level value in the second graduated cylinder is measured, by measurement the distance between water-level float 4 and water level sensor variation, is changed into second
The variation of water level value in measuring cylinder.Above-mentioned water level sensor can be electro-optical distance measurement sensor, floating ball type liquid level sensor, floating drum
Formula liquid level sensor, static pressure type liquid level sensor, throw-in type liquid level sensor, capacitive liquid level transmitter, supersonic liquid level become
Any one sensor in device and radar level transmitter is sent, there is the sensor of measurement water level value function can also make for other
For the water level sensor for measuring the second measuring cylinder water level.
It can also be other embodiments, in practical applications, the first measuring cylinder and the second measuring cylinder can be set to
Measuring cylinder with scale value can obtain the water level of the second measuring cylinder by way of manually reading measuring cylinder water level numerical value
Value.
Since the water inlet port radius of water receiving funnel 1 and the water inlet port radius of the first measuring cylinder are different, the first measuring cylinder and the
The radius of two measuring cylinders is identical, can be by between water inlet port radius and the water inlet port radius of the first measuring cylinder of water receiving funnel 1
Proportionate relationship, in the second measuring cylinder that the practical rainfall water level and water level sensor being calculated in water receiving funnel are read
Water level numerical value between relationship.
The embodiment of the invention provides a kind of rainfall gauges, by measuring the water outlet port radius of water receiving funnel greater than U-tube
The water inlet port radius of first measuring cylinder of cylinder improves udometric survey to realize the physics amplification to tested rainfall water level
Accuracy of measurement.
Embodiment two:
The embodiment of the invention provides a kind of rainfall gauges, as shown in Figure 3, comprising: water receiving funnel 1, inner funnel 2, U-tube are surveyed
Graduated cylinder 3, water-level float 4 and water level sensor 5.U-tube measuring cylinder 3 includes the first measuring cylinder and the second measuring cylinder, the first measurement
Cylinder is identical with the cylinder radius of the second measuring cylinder, and the first measuring cylinder is connected to the bottom of the second measuring cylinder.
Wherein, the water inlet of water receiving funnel 1 is cylindrical；Inner funnel 2 is arranged in below the water outlet of water receiving funnel 1, interior
The water outlet of funnel 2 connects the water inlet of the first measuring cylinder；The water inlet port radius of water receiving funnel 1 is greater than the water inlet of the first measuring cylinder
Port radius.Water-level float 4 is arranged in the inside of second measuring cylinder, and water level sensor 5 is set to water-level float in the second measuring cylinder
Surface, with the water level based on the position of water-level float 4 measurement U-tube measuring cylinder.
As shown in figure 3, the rainfall gauge further includes water receiving solenoid valve 6, water receiving solenoid valve 6 is set to the water outlet of water receiving funnel
Place.The water outlet of water receiving funnel is arranged in water receiving solenoid valve 6, rainwater can be made to pass through by controlling the opening of water receiving solenoid valve 6
It crosses inner funnel and flows into U-tube measuring cylinder 3, when controlling the closing of water receiving solenoid valve 6, rainwater can be ended and flow into U-tube measuring cylinder
3。
The bottom of first measuring cylinder and the second measuring cylinder is provided with measuring cylinder water outlet.As shown in figure 3, the rainfall gauge also wraps
Water draining beak 7 is included, measuring cylinder water outlet is also connected with water draining beak 7.The setting of the bottom connectivity part of first measuring cylinder and the second measuring cylinder
Have measuring cylinder water outlet, measuring cylinder water outlet is connected with water draining beak 7, so as to before detection or after the completion of detection by first
Rainwater in measuring cylinder and the second measuring cylinder excludes clean.
The rainfall gauge further includes drain solenoid valve 8, and drain solenoid valve 8 is mounted on the company of water draining beak 7 Yu measuring cylinder water outlet
Meet place.The rainwater in U-tube measuring cylinder 3 can be made to be discharged by water draining beak by opening drain solenoid valve 8, it is electric when closing draining
When magnet valve, the rainwater in U-tube measuring cylinder 3 can be prevented to be discharged.
Can also be other embodiments, can be the high limit of rainfall gauge setting in actual use, such as spit shown in, should
Rainfall gauge further includes U-tube measuring cylinder high limit 9, when the rainwater in the second measuring cylinder of U-tube measuring cylinder is more than U-tube measuring cylinder
Height is prescribed a time limit, and the measurement range of U-tube measuring cylinder 3 is had exceeded, can be by the way that water receiving solenoid valve 6 is turned off manually, and truncation rainwater continues
It is flowed by inner funnel 2 in the first measuring cylinder and the second measuring cylinder of U-tube measuring cylinder 3, opens drain solenoid valve 8, make U-tube
Rainwater discharge in measuring cylinder 3, avoids measurement error caused by causing invalid rainfall measurement.
As shown in figure 3, the rainfall gauge further includes shell 10, shell 10 can protect udometric interior arrangement, can also be with
Rain, which floats, when avoiding measuring the amount of rainfall causes measurement error in the second measuring cylinder.
The embodiment of the invention provides a kind of rainfall gauges, install water receiving solenoid valve, Yi Jipai in the water outlet of water receiving funnel
The junction installation draining electronic valve of water nozzle and measuring cylinder water outlet passes through manual control water receiving solenoid valve and drain solenoid valve
Switch state avoids the measurement error of invalid rainfall, and it is too late to solve from technical principle existing rainfall gauge heavy rain metering
When, the problem that light rain is reactionless and measurement error is big,
Embodiment three:
The embodiment of the invention provides a kind of rainfall gauges, as shown in figure 4, the rainfall gauge includes: water receiving funnel 1, inner funnel
2, U-tube measuring cylinder 3, water-level float 4, water level sensor 5 and water draining beak 7.U-tube measuring cylinder 3 includes the first measuring cylinder and the
The cylinder radius of two measuring cylinders, the first measuring cylinder and the second measuring cylinder is identical, and the bottom of the first measuring cylinder and the second measuring cylinder connects
It is logical.And first the bottom of measuring cylinder and the second measuring cylinder be provided with measuring cylinder water outlet.Measuring cylinder water outlet also with 7 phase of water draining beak
Even.
Wherein, the water inlet of water receiving funnel 1 is cylindrical；Inner funnel 2 is arranged in below the water outlet of water receiving funnel 1, interior
The water outlet of funnel 2 connects the water inlet of the first measuring cylinder；The water inlet port radius of water receiving funnel 1 is greater than the water inlet of the first measuring cylinder
Port radius.Water-level float 4 is arranged in the inside of second measuring cylinder, and water level sensor 5 is set to water-level float in the second measuring cylinder
Surface, with the water level based on the position of water-level float 4 measurement U-tube measuring cylinder.
As shown in figure 4, the rainfall gauge further includes the control unit 11 connecting with water level sensor, water level sensor 5 is also used
Control unit 11 is sent in the water level numerical information for obtaining measurement.Water level sensor 5 connects control unit 11, can will hold
Water level numerical information in continuous the second measuring cylinder measured, real-time Transmission is to control unit 11.
The rainfall gauge further includes water receiving solenoid valve 6 and drain solenoid valve 8, control unit 11 also respectively with water receiving solenoid valve 6
It is connected with drain solenoid valve 8, control unit 11 is also used to control the open and-shut mode of water receiving solenoid valve 6 and drain solenoid valve 8.Water receiving
Solenoid valve 6 is set to the water outlet of water receiving funnel.Drain solenoid valve 8 is mounted on the connection of water draining beak 7 Yu measuring cylinder water outlet
Place.
Solenoid valve is respectively set in the water outlet and measuring cylinder water outlet of water receiving funnel 1, and solenoid valve is in control unit 11
The lower sequence of control opens closure, for avoiding generating invalid rainfall measurement error.Water receiving solenoid valve 6 and drain solenoid valve 8 it is suitable
Sequence opens closing course are as follows: when rainwater flows into U-tube measuring cylinder 3 through water receiving funnel and reaches measuring cylinder high limit 9, closes water receiving
Solenoid valve 6, truncation rainwater continue to flow into the first measuring cylinder and the second measuring cylinder of U-tube measuring cylinder 3, open simultaneously draining electricity
The water in U-tube measuring cylinder 3 is discharged in magnet valve 8；After water emptying, drain solenoid valve 8 is closed, opens water receiving solenoid valve 6,
Rainwater is set to continue to flow into U-tube measuring cylinder 3.Caused by rainwater continues to flow into when this control process avoids measuring cylinder draining
Invalid rainfall measurement error.
The barrel of first measuring cylinder and the barrel of the second measuring cylinder mutually attach.The bottom of first measuring cylinder and the second measuring cylinder
Connectivity part is flat.
Above-mentioned rainfall gauge is optimized the structure of U-tube measuring cylinder 3 from structure, as shown in figure 4, U-tube measures
First measuring cylinder of cylinder 3 and the barrel of the second measuring cylinder are tightly attached onto, and the bottom of the first measuring cylinder and the second measuring cylinder
Connectivity part be it is flat, ensure that the first measuring cylinder and the second measuring cylinder be from top to bottom cross-section product, realize to tested drop
The linear physics of rainfall amplifies.
Water level sensor 5 measures the precision of obtained water level numerical information and the water inlet port radius and first of water receiving funnel 1
The water inlet port radius of measuring cylinder is related.Specifically, set the water inlet port radius of water receiving funnel 1 as R, the first measuring cylinder and the second measurement
The water inlet port radius of cylinder is r, and the method by weight of volume, height of water level is the rainwater of L in water receiving funnel, flows into U-tube
After the first measuring cylinder and the second measuring cylinder of measuring cylinder 3, the height of water level in the second measuring cylinder is l, then calculates formula are as follows:
In the case where the water inlet port radius R of water receiving funnel 1 is greater than the water inlet port radius r of the first measuring cylinder, wait measure rainfall
Height L is enlarged into the height of water level l in the second measuring cylinder of U-tube measuring cylinder 3, and the calculating of the amplification factor K realized is calculated
Formula are as follows:
Compared to using water level sensor directly to measure rainfall water level, above-mentioned rainfall gauge is amplified by physics, can be by rainfall
Measurement accuracy improves K times.In the case where identical measurement accuracy requires, then the measurement accuracy of water level sensor will can be required to drop
The 1/K of low direct measurement method.It is easy to implement the rainfall measurement of high-precision and low cost.
As an alternative embodiment, in actual use, when measuring the amount of rainfall using above-mentioned rainfall gauge, using step
It is rapid as follows:
Step 1, before Precipitation measurement starts, rainfall gauge is initialized first.Control unit output control letter
Number, water receiving solenoid valve is closed, truncation rainwater flows into the first measuring cylinder and the second measuring cylinder of U-tube measuring cylinder, opens draining
Solenoid valve is discharged the water in U-tube measuring cylinder, while starting the timer inside control unit.In drainage procedure, control is single
Member persistently reads the water level numerical value of water level sensor transmission, judges whether water empties according to water level numerical value.
Step 2, after in the first measuring cylinder and the second measuring cylinder of U-tube measuring cylinder water empty after, control unit is defeated
Signal is controlled out, closes drain solenoid valve, opens water receiving solenoid valve.The measurement that can start progress rainfall makes rainwater flow into U
Type pipe measuring cylinder, control unit persistently read and record the water level numerical value of water level sensor transmission.
Step 3 is prescribed a time limit when the measurement height that water level numerical value reaches U-tube measuring cylinder, and control unit exports control signal again,
Water receiving solenoid valve is closed, truncation rainwater continues to flow into U-tube measuring cylinder, opens drain solenoid valve, is discharged in U-tube measuring cylinder
Water completes a measurement period.
Step 4, after water emptying after, control unit output control signal, close drain solenoid valve, open water receiving electromagnetism
Valve makes rainwater flow into U-tube measuring cylinder, opens a new measurement period.Control unit persistently reads water level sensor transmission
Water level numerical value, and it is cumulative with the water level numerical value of the measurement period stored in timer.
Step 5, after control unit internal timer reaches continuous measuring hours setting, water that control unit will be accumulative
Bit value divided by the udometric water level value physics amplification factor, then divided by continuous measuring hours, exports as unit of mm/min
Rainfall measurement value, timer reset.
It is above-mentioned that udometric to be suitable for rainfall in continuous measuring hours using step be more than U-tube measuring cylinder total measurement (volume)
The case where.If the rainfall in continuous measuring hours is smaller, U-tube measuring cylinder total measurement (volume) is not reached, then work step can
To leap to step 5 from step 2, the intermediate drainage procedure of step 3 and step 4 is omitted.
Illustratively, water inlet port radius can be used for the water receiving funnel 1 of 10cm when assembling above-mentioned rainfall gauge, first
The radius of graduated cylinder and the second graduated cylinder is 1cm, then the rainfall gauge is 50 times to the physics amplification factor of rainfall water level value.Water level passes
Sensor can use photoelectric sensor, and the range measurement accuracy of the water level sensor is ± 1mm.Import physics amplification factor
Afterwards, being converted into rainfall measurement accuracy is ± 0.02mm.Measurement essence much higher than common tipping-bucket rain-gauge minimum resolution 0.1mm
Degree.
The embodiment of the invention provides a kind of rainfall gauges, by distinguishing below water receiving funnel and below U-tube measuring cylinder
Solenoid valve is set, sequentially opens closure under control unit control, avoids generating invalid rainfall measurement error, the rainfall gauge is from whole
It is realized on body under the conditions of various rainfall intensities, to continuous, the precise measurement of rainfall, there is low cost, versatile, knot
The advantage that structure is simple, measurement result is true and reliable.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of rainfall gauge characterized by comprising water receiving funnel, inner funnel, U-tube measuring cylinder, water-level float and water level pass
Sensor；The U-tube measuring cylinder includes the first measuring cylinder and the second measuring cylinder, first measuring cylinder and second measuring cylinder
Cylinder radius it is identical, and first measuring cylinder is connected to the bottom of second measuring cylinder；Wherein,
The water inlet of the water receiving funnel is cylindrical；The inner funnel is arranged in below the water outlet of the water receiving funnel, institute
The water outlet for stating inner funnel connects the water inlet of first measuring cylinder；The water inlet port radius of the water receiving funnel is greater than described the
The water inlet port radius of one measuring cylinder；
Water-level float is arranged in the inside of second measuring cylinder, and the water level sensor is set to water level in second measuring cylinder
The surface of float measures the water level of the U-tube measuring cylinder with the position based on the water-level float.
2. rainfall gauge according to claim 1, which is characterized in that further include water receiving solenoid valve, the water receiving solenoid valve is set
It is placed in the water outlet of the water receiving funnel.
3. rainfall gauge according to claim 1, which is characterized in that the bottom of first measuring cylinder and second measuring cylinder
Portion is provided with measuring cylinder water outlet.
4. rainfall gauge according to claim 3, which is characterized in that further include water draining beak, the measuring cylinder water outlet also with
The water draining beak is connected.
5. rainfall gauge according to claim 4, which is characterized in that it further include drain solenoid valve, the drain solenoid valve peace
Mounted in the junction of the water draining beak and the measuring cylinder water outlet.
6. rainfall gauge according to claim 1, which is characterized in that further include the control list being connect with the water level sensor
Member；The water level sensor is also used to the water level numerical information that measurement obtains being sent to described control unit.
7. rainfall gauge according to claim 6, which is characterized in that the rainfall gauge further includes water receiving solenoid valve and draining electricity
Magnet valve, described control unit are also connected with the water receiving solenoid valve and the drain solenoid valve respectively, and described control unit is also used
In the open and-shut mode for controlling the water receiving solenoid valve and the drain solenoid valve.
8. rainfall gauge according to any one of claims 1 to 7, which is characterized in that the barrel of first measuring cylinder and institute
The barrel for stating the second measuring cylinder mutually attaches.
9. rainfall gauge according to claim 1, which is characterized in that the bottom of first measuring cylinder and second measuring cylinder
Portion's connectivity part is flat.
10. rainfall gauge according to claim 1, which is characterized in that the water level numerical value that the water level sensor measurement obtains
The precision of information is related to the water inlet port radius of the water inlet port radius of the water receiving funnel and first measuring cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910260159.XA CN109932759A (en) | 2019-04-01 | 2019-04-01 | Rainfall gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910260159.XA CN109932759A (en) | 2019-04-01 | 2019-04-01 | Rainfall gauge |
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| Publication Number | Publication Date |
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| CN109932759A true CN109932759A (en) | 2019-06-25 |
Family
ID=66989052
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910260159.XA Pending CN109932759A (en) | 2019-04-01 | 2019-04-01 | Rainfall gauge |
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| CN (1) | CN109932759A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253432A (en) * | 2011-06-27 | 2011-11-23 | 南京信息工程大学 | SCM (single chip microcomputer) based ultrasonic rainfall measurement device |
| CN206096516U (en) * | 2016-10-14 | 2017-04-12 | 北京美科华仪科技有限公司 | Level gauge formula hyetometer |
| CN208060751U (en) * | 2018-04-20 | 2018-11-06 | 付金乐 | Mangneto displacement sensor formula rainfall gauge |
| CN209486333U (en) * | 2019-04-01 | 2019-10-11 | 济南众联电子科技有限公司 | Rainfall gauge |
-
2019
- 2019-04-01 CN CN201910260159.XA patent/CN109932759A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253432A (en) * | 2011-06-27 | 2011-11-23 | 南京信息工程大学 | SCM (single chip microcomputer) based ultrasonic rainfall measurement device |
| CN206096516U (en) * | 2016-10-14 | 2017-04-12 | 北京美科华仪科技有限公司 | Level gauge formula hyetometer |
| CN208060751U (en) * | 2018-04-20 | 2018-11-06 | 付金乐 | Mangneto displacement sensor formula rainfall gauge |
| CN209486333U (en) * | 2019-04-01 | 2019-10-11 | 济南众联电子科技有限公司 | Rainfall gauge |
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