CN217332907U - Automatic detection device of tipping bucket type rainfall sensor - Google Patents

Abstract

The utility model relates to a device for being directed at bucket-type rain gauge carries out the calibration, especially a device that is directed at bucket-type rain gauge carries out the calibration to on-line automation. The utility model discloses a tipping bucket formula rainfall sensor automatic checkout device, include: the rain gauge comprises a pipeline communicated between a water supply container and a rain gauge to be measured, a pump and a valve arranged in the pipeline, a power supply and power supply system, a power supply controller, a data detection sensor, a detection and calculation module, an operation and display module, interfaces among the modules and a standard water storage container. The utility model discloses a setting is decided the container and is supplied water to the rain gauge of being surveyed, therefore it does not exist the number of times that relies on the tipping bucket among the prior art, can objectively actually measure total water injection volume, and the number of times that the rethread survey tipping bucket overturned and the time that corresponds the survey process realize examining and determine the rain gauge accurately.

Description

Automatic detection device for tipping bucket type rainfall sensor

Technical Field

The utility model relates to a device for being directed at bucket-type rain gauge carries out the calibration, especially a device that on-line automatic is directed at bucket-type rain gauge and is carried out calibration. The utility model discloses an including in the device: the rain gauge comprises a pipeline communicated between a water supply container and the rain gauge to be measured, a pump and a valve arranged in the pipeline, a power supply and power supply system, a power supply controller, a data detection sensor, a detection and calculation module, an operation and display module and interfaces among the modules.

Background

A rain gauge is a commonly used measuring instrument in the meteorological field, a tipping bucket rain gauge is mostly adopted at the present stage, a tipping bucket rain sensor is arranged in the rain gauge, the rain gauge collects rainfall through a water receiver, the rainfall flows into a tipping bucket after filtration, when a certain amount of rainwater is filled into the tipping bucket, the tipping bucket turns over under the action of gravity to empty the water in the tipping bucket, and meanwhile, the tipping bucket on the other side starts to receive water. The tipping bucket drives the magnetic steel arranged on the tipping bucket to scan the reed switch once when turning over each time, and the reed switch is instantaneously closed once due to magnetization, so that the rainfall of one bucket is converted into a pulse signal, and the rainfall received by the rain gauge is determined according to the pulse signal.

To determine the accuracy of the rain gauge, its capacity needs to be calibrated. The Chinese patent application 202010685865.1 discloses an online calibration system for a rainfall sensor based on a peristaltic pump, which comprises an upper computer and a calibrator, wherein the calibrator is formed by a computer and is connected with a tipping bucket type rain gauge, the upper computer is wirelessly connected with the calibrator, the calibrator comprises a single chip microcomputer, a peristaltic pump and an electromagnetic valve, one end of the peristaltic pump is connected with a water storage chamber through a water inlet pipe, the other end of the peristaltic pump is connected with a water bearing device of the tipping bucket type rain gauge through a water outlet pipe, the electromagnetic valve is arranged between the tipping bucket type rain gauge and the water storage chamber, and the peristaltic pump and the electromagnetic valve are electrically connected with the single chip microcomputer. The device can only measure the times of the tipping bucket and obtain the total water injection amount according to the times when the calibration is carried out, and the device cannot accurately measure the data of the total water injection amount and the tipping bucket times of the rain gauge, which are required by the verification regulation, because the error of the operation of the peristaltic pump and the deviation of the water injection amount of the tipping bucket can occur under the influence of certain conditions. In addition, when different rainfall is simulated, the influence of the flow velocity of the injection tipping bucket also influences the movement of the tipping bucket, so that abnormal metering errors are caused.

Disclosure of Invention

The utility model provides a can overcome the not enough tipping bucket formula rainfall sensor automatic checkout device of prior art.

The utility model discloses a tipping bucket formula rainfall sensor automatic checkout device, include: intercommunication water supply container and quilt survey the pipeline between the rain gauge, set up in pump and valve, power supply and electrical power generating system, electrical source controller, data detection sensor, detection and calculation module, operation and display module in the pipeline to and the interface between each module, the utility model discloses in be provided with a standard water container, the pump be two-way pump, a water input port intercommunication standard water container of two-way pump, another water input port intercommunication standard water container, its another water input port communicates respectively by the rain gauge and the water supply container, and this water input port intercommunication is provided with the valve in the pipeline that is detected the rain gauge and communicates the pipeline of water supply container respectively. The utility model discloses it injects standard water storage container with the water of two-way pump in the water supply container when the operation, makes the different reverse operation of two-way pump again to be applicable to the tipping bucket of being surveyed the pluviometer with the velocity of flow corresponding to different rainfall in being applicable to the water injection in the standard water storage container, measure the total number of times that overturns when the tipping bucket after the water yield flows out completely under different rainfall standard water storage container respectively, and correspond the time interval of survey process. The present invention herein used with a bi-directional pump is any pump that can operate bi-directionally, such as a peristaltic pump, a gear pump, a double plunger pump, etc.

Preferably, the utility model discloses a tipping bucket formula rain sensor automatic checkout device, the valve in the pipeline that communicates two-way pump and be detected the pluviometer and the pipeline of intercommunication water supply container is the solenoid valve.

Preferably, the utility model discloses a tipping bucket formula rain sensor automatic checkout device's standard water storage container is provided with overflow mouth and level sensor.

Preferably, the utility model discloses a bidirectional pump among tipping bucket formula rainfall sensor automatic checkout device is the gear pump.

More preferably, the utility model discloses a tipping bucket formula rain sensor automatic checkout device, operation wherein and display module are the touch-sensitive screen.

According to the above content, the device of the utility model is provided with the standard water storage container in the calibration device of the prior art, and the water in the standard water storage container is introduced into the tipping bucket to be tested in the calibration process, so the total input water quantity is unique and definite, and the device does not have the times depending on the tipping bucket in the prior art, can objectively measure the total water injection quantity, and realizes the accurate calibration of the rain gauge by measuring the overturning times of the tipping bucket and the time corresponding to the measuring process; the gear pump used by the utility model can better control the water flow rate and the speed, so that the gear pump can better match with the corresponding rainfall; when the utility model discloses a rechargeable lithium cell is when the power, can be used to field work to can realize outdoor on-the-spot automatic calibration very conveniently, improve the degree of accuracy of on-the-spot calibration. The utility model discloses but the water flow velocity of flow is even, and the device operation is stable, and examination or calibration can be accomplished certainly, moreover the utility model discloses a device volume is also not big, and it is more convenient to carry, transport.

Drawings

Fig. 1 is a schematic diagram of an embodiment of the apparatus of the present invention, in which: the rain gauge detection device comprises a water supply container and a tee joint, a tee joint (for communicating a detected rain gauge with a left port of a bidirectional pump) 1, a tee joint (for communicating the detected rain gauge with a left port of the bidirectional pump) 3, a tee joint communicated with a left water inlet port of a quilt pipe 1 and a left water inlet port of the bidirectional pump 4, a bidirectional pump 5, a right water inlet port of the bidirectional pump 6, a pipeline communicated with a right water inlet port of the bidirectional pump and a standard water container 7, a water level sensor arranged on the standard water container 8, a standard water container 9, an overflow water inlet of the standard water container 10, an RS 232/485 interface 11, a computer 12, a touch operation screen 13, a control bus 14, an address bus 15, a data bus 16, a singlechip 17, a signal acquisition interface of the detected rain gauge 18, a storage battery 19, a power supply controller 20, a power supply plug 21, a power supply circuit 22, a detected rain gauge 23, a water supply container 24 and a control interface 25.

Detailed Description

The present invention will be explained in detail with reference to fig. 1.

It can be seen from the attached figure 1 that the utility model discloses a tipping bucket formula rainfall sensor automatic checkout device by: the system comprises a water supply container 1, a bidirectional pump 5, a standard water storage container 9, a power supply and power supply system consisting of a storage battery 19 and a power supply controller 20, a detection and calculation module consisting of a computer 12, a single chip microcomputer 17 and a touch operation screen 13, an operation and display module and a control bus 14, an address bus 15, a data bus 16, a signal acquisition interface 18 and a control interface 25 of a rain gauge to be determined, an RS 232/485 interface 11, a tee joint 2, a pipeline for communicating the water supply container 24 with a left water delivery port of the bidirectional pump 5 and a pipeline for communicating the standard water storage container 9 with a right water delivery port of the bidirectional pump 5. Wherein: the standard water storage container 9 is a standard glass measuring device required in the verification regulation, and the areas of water receiving openings of the tipping bucket type rainfall sensors used in China at present are respectively 200cm ² 、314cm ² And 397cm ² The volume of the standard water storage container is respectively 200mL, 314mL and 397mL according to the working principle of the rainfall sensor, the volume is equivalent to the precipitation of 10mm of each rainfall sensor, the corresponding standard water storage container is selected according to the area of a water receiving opening before the rainfall sensor is verified/calibrated, and an overflow opening 10 and a water level sensor are further arranged on the standard water storage container. The utility model discloses well tee bend 2's one end pipeline 1 intercommunication water supply container 24, other end pipeline 2 intercommunication are examined and determine rain gauge 23, third end pipeline 3 intercommunication two-way pump's left side water delivery port 4, and all are provided with the solenoid valve on pipe 1 and pipe 2 and pipe 7 (this valve is not shown in figure 1).

The following is a specific embodiment of the present invention, and this embodiment is to calibrate and detect when the rainfall is common grave of 314 rain measuring barrels, and the volume of the tipping bucket is 3.14 ml. The utility model discloses the standard water container volume that uses in the device is 314ml, and the bidirectional pump who uses is the gear pump.

In the embodiment, when calibration and verification are performed, firstly, a valve arranged on a pipeline of a tee joint 2 communicated with a rain gauge to be verified is closed, electromagnetic valves on a pipe 1 and a pipe 7 are opened, then a bidirectional pump 5 is started to pump water in a water supply container 24 into a standard water storage container 9, an overflow port of the standard water storage container 9 is like overflow water after the standard water storage container 9 is filled with water, meanwhile, a water level meter detects a signal reaching a water level, an MCU sends a signal for stopping pumping water, the electromagnetic valves arranged on the pipe 1 and the pipe 7 are closed, the electromagnetic valves arranged on the pipe 2 and the pipe 7 are opened, the bidirectional pump 5 is started to run reversely, the water flow speed output by the bidirectional pump corresponds to the rainfall with corresponding rain intensity according to the rotating speed of the touch operation screen, water is injected into the rain gauge 24 in a controlled manner, the overturning frequency of a tipping bucket in the rain gauge 23 is obtained through a signal acquisition interface 18 of the rain gauge, and the total measuring time is measured, and meanwhile, the required verification data is obtained through communication and calculation with the detection and calculation module through the control bus 14, the address bus 15, the data bus 16, the control interface 25 and the RS 232/485 interface 11. For example, when the measured overturning times of the tipping bucket are equal to 100 times after the water in the standard water storage container completely flows out within 600 seconds, the measured rain gauge meets the requirement of the verification regulation under the condition of small rain amount and is a qualified rain gauge.

The utility model discloses a can not adopt in the device preceding the tee bend structure, and directly communicate the water delivery port of two-way pump respectively with different pipelines, so will form the utility model discloses another embodiment of structure.

Claims (5)

1. A tipping bucket formula rain sensor automatic checkout device includes: the rain gauge detection device is characterized in that a standard water storage container is arranged in the device, the pump is a bidirectional pump, one water input port of the bidirectional pump is communicated with the standard water storage container, the other water input port of the bidirectional pump is respectively communicated with the detected rain gauge and the water supply container, and the water input port is communicated with the pipeline of the detected rain gauge and the pipeline communicated with the water supply container and is respectively provided with a valve.

2. The automatic detecting device of a dump bucket rainfall sensor according to claim 1 wherein the valves in the pipe connecting the bidirectional pump to the detected rainfall meter and the pipe connecting the water supply container are solenoid valves.

3. The automatic detecting device of a dump bucket rainfall sensor according to claim 1 or 2 wherein the standard water storage container is provided with an overflow port and a water level sensor.

4. The automatic detecting device of a tipping bucket rainfall sensor of claim 3 wherein the operating and displaying module is a touch screen.

5. The automatic detecting device of a dump bucket rainfall sensor of claim 4 wherein the bidirectional pump is a gear pump.

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