High-precision rainfall sensor capable of automatically detecting and reporting horizontal data

Abstract

The utility model relates to a high-precision rainfall sensor capable of automatically detecting and reporting horizontal data, belonging to a tipping bucket type rainfall sensor. Comprising a rain receiving opening assembly, an outer cylinder, a base, a water injection funnel, a tipping bucket support, a metering tipping bucket assembly, a left tipping bucket inclination angle supporting column assembly, a right tipping bucket inclination angle supporting column assembly, a reed switch, a spirit bubble, a horizontal supporting plate, a supporting plate horizontal adjusting device and a drainage funnel. The system further comprises an electronic tilt angle sensor assembly, a data acquisition terminal, a signal communication unit, a signal display control terminal and a remote data measurement and control unit. The electronic tilt angle sensor assembly is mounted on the horizontal support plate; the output end of the electronic tilt angle sensor assembly is connected with the input end of the data acquisition terminal; the output end of the data acquisition terminal is connected with the input end of the signal communication unit; the output end of the signal communication unit is in communication connection with the signal display control terminal and the remote data measurement and control unit. The rainfall station has the advantages of simple structure, convenience in installation and maintenance and capability of quickly maintaining the rainfall station which affects the measurement accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tipping bucket rain sensor technical field, especially a rain sensor of high-precision automatic detection, report horizontal data. BACKGROUND

[0002] The tipping bucket rain sensor is the most widely used precipitation measuring instrument in the world, and the known tipping bucket rain sensor has the advantages of simple structure, long service life, low price, no power consumption and remote measurement, and is widely used in hydrology, water conservancy, agriculture, meteorology, flood control and disaster reduction, transportation and other fields.

[0003] The tipping bucket rain sensor comprises a rain receiving opening assembly 1, an outer cylinder 2, a base 3, a water injection funnel 4, a tipping bucket support 5, a metering tipping bucket assembly 6, a left tipping bucket inclination support column assembly 7, a right tipping bucket inclination support column assembly 8, a reed tube 9, a level bubble 10, a horizontal support plate 11, a support plate horizontal adjusting device 12 and a drainage funnel 13.

[0004] The lower end of the outer cylinder 2 is connected with the base 3, and the upper end of the outer cylinder 2 has the rain receiving opening assembly 1 which is inserted into the outer cylinder 2; the support plate horizontal adjusting device 12 is connected on the base 3, and the horizontal support plate 11 is connected on the support plate horizontal adjusting device 12; the tipping bucket support 5 is connected on the horizontal support plate 11, and the upper end of the tipping bucket support 5 has the water injection funnel 4, and the water receiving opening of the water injection funnel 4 is located below the water outlet of the rain receiving opening assembly 1; the metering tipping bucket assembly 6 is connected on the tipping bucket support 5, and the metering tipping bucket assembly 6 swings left and right with the tipping bucket support 5 as the fulcrum; the left tipping bucket inclination support column assembly 7 and the right tipping bucket inclination support column assembly 8 are connected on the horizontal support plate 11 below the metering tipping bucket assembly 6, and the left tipping bucket inclination support column assembly 7 and the right tipping bucket inclination support column assembly 8 are located on the two sides of the fulcrum of the tipping bucket support 5; the level bubble 10 is connected between the left tipping bucket inclination support column assembly 7 and the right tipping bucket inclination support column assembly 8; the tipping bucket shaft support is arranged on the tipping bucket support 5, the tipping bucket shaft 6-1 is installed on the tipping bucket shaft support; and the two drainage funnels 13 are arranged below the two bucket tips of the metering tipping bucket assembly 6.

[0005] The metering tipping bucket assembly 6 comprises a tipping bucket shaft 6-1, a middle partition plate 6-2, a left tipping bucket 6-3, a right tipping bucket 6-4 and a permanent magnet 6-5; the middle partition plate 6-2 is arranged between the left tipping bucket 6-3 and the right tipping bucket 6-4, the middle partition plate 6-2 divides the two tipping buckets into the symmetrical left tipping bucket 6-3 and the right tipping bucket 6-4, the tipping bucket shaft 6-1 is arranged on the bottom surface of the tipping bucket at the lower end of the middle partition plate 6-2; and the permanent magnet 6-5 is connected on the side wall of the left tipping bucket 6-3 and the right tipping bucket 6-4.

[0006] The left and right buckets 6-3 and 6-4 are mutually draining or water storage buckets. When one of the buckets is filled with a certain amount of water, the bucket is turned to the other side with the bucket shaft 6-1 as the axis, and the downward turning bucket is the draining bucket, and the upward turning bucket is the water storage bucket. The buckets are turned repeatedly, and the water inlet of the water storage bucket is located below the water outlet of the water injection funnel 4. Permanent magnets 6-5 are installed on the buckets, and reed switches 9 are installed at corresponding positions on the bucket support 5. During the turning of the bucket, the permanent magnet 6-5 approaches the reed switch 9 and then leaves immediately, causing the contacts in the reed switch 9 to be closed and opened once, so that a signal is generated each time the bucket is turned. The rainfall collection display instrument and the data processing system collect and accumulate the signals to display the rainfall and process the data.

[0007] The rainfall enters the water injection funnel 4 through the water inlet, and then enters the water storage bucket of the bucket. When the total turning moment MF generated by the change of the water body in the water storage bucket is greater than the total reverse moment MN generated by the self-weight of the bucket body and other factors, the bucket is turned instantly, and the collected rainfall is discharged. At this time, the bucket on the other side becomes a water storage bucket to bear the water storage function, and the rainfall is measured in this way.

[0008] The torque dynamic balance principle equation is:

[0009] MN=MK…………………………………(1)

[0010] (1) In the formula: MK is the reverse moment of the bucket body (including the bucket chamber shell, the middle partition plate, the permanent magnet, and the bucket shaft), and the unit is gram-centimeter (g-cm). MK=FK×LK, FK is the weight of the bucket body, and the unit is gram (g), and LK is the length of the force arm of the bucket body, and the unit is centimeter (cm);

[0011] MF=MS…………………………………(2)

[0012] (2) In the formula: MS is the dynamic moment generated by the weight of the water body in the water storage bucket, which changes with the total amount of water storage and the displacement of the center of gravity of the water body, and the unit is gram-centimeter (g-cm). MS=FS×LS, FS is the weight of the water body, and the unit is gram (g), and LS is the length of the force arm of the water body, and the unit is centimeter (cm);

[0013] In actual use, the tipping bucket rain sensor is often installed on a vertical rod. Due to settlement of the foundation or deformation of the vertical rod, without automatic horizontal detection, and without timely discovery by the maintenance personnel and adjustment of the tipping bucket rain sensor back to the horizontal state through the support plate horizontal adjustment device 12, the tipping bucket rain sensor will be in an overall inclined state, the dynamic balance of the moment is destroyed, the length of the bucket body force arm (LK) and the length of the water body force arm (LS) in the principle equation of the dynamic balance of the moment are changed, thereby greatly affecting the accuracy of the rain sensor, and serious imbalance will also cause water overflow outside the tipping bucket, resulting in measurement failure.

[0014] In many rain observation projects, the rain stations are distributed relatively dispersedly, the distance between adjacent sites is relatively large, and several hundred or even thousands of rain stations need to be set up in one rain observation project. Without the sensor with automatic horizontal detection and reporting, the maintenance personnel often do not have targeted and predictive maintenance, and only when a large error occurs in the accuracy of the rain sensor can the problem be found and processed.

[0015] In the practical working state, most tipping bucket rain sensors are in an inclined state, and the accuracy of the rain sensor will be greatly affected, making it difficult to reflect the real rainfall situation.

[0016] In summary, the disadvantages and shortcomings of the known tipping bucket rain sensor are:

[0017] 1. Most tipping bucket rain sensors are in an inclined state, and the accuracy of the rain sensor will be greatly affected, making it difficult to reflect the real rainfall situation.

[0018] 2. Due to settlement of the foundation or deformation of the vertical rod, without automatic horizontal detection, and without timely discovery by the maintenance personnel and adjustment of the tipping bucket rain sensor back to the horizontal state through the support plate horizontal adjustment device 12, the tipping bucket rain sensor will be in an overall inclined working state for a long time, thereby greatly affecting the accuracy and reliability of the rain sensor.

[0019] 3. The rain stations are distributed relatively dispersedly, the distance between adjacent sites is relatively large, and several hundred or even thousands of rain stations need to be set up in one rain observation project. Without the sensor with automatic horizontal detection and reporting, the maintenance personnel often do not have targeted and predictive maintenance, and only when a large error occurs in the accuracy of the rain sensor can the problem be found and processed.

[0020] 4. The existing sensor is installed with a mechanical level bubble, and the mechanical level bubble has low resolution, no digital signal output, and cannot be used for remote monitoring. Content of the utility model

[0021] The utility model discloses a task is overcome the prior art's shortcoming and the insufficient place, provide a high accuracy automatic detection, report horizontal data's raindrop sensor, solve the existing tipping bucket raindrop sensor to be in the inclined state work, do not get the maintenance in time, lead to the measurement accuracy, the reliability poor problem of poor.

[0022] In order to realize the above-mentioned purpose, the utility model discloses a tipping bucket raindrop sensor includes: rain inlet assembly, outer tube, base, water injection funnel, tipping bucket support, metering tipping bucket assembly, left tipping bucket inclination support column assembly, right tipping bucket inclination support column assembly, reed, level bubble, horizontal support plate, support plate horizontal adjusting device and drainage funnel, wherein, the metering tipping bucket assembly includes: tipping bucket shaft, middle baffle, left bucket chamber, right bucket chamber and permanent magnet,

[0023] Still include: electronic inclination sensor assembly, data acquisition terminal, signal communication unit, signal display control terminal and remote data measurement and control unit (RTU);

[0024] Electronic inclination sensor assembly is installed on horizontal support plate, the output of electronic inclination sensor assembly is connected with the input of data acquisition terminal, the output of data acquisition terminal is connected with the input of signal communication unit, the output of signal communication unit is respectively connected with signal display control terminal and remote data measurement and control unit (RTU) communication.

[0025] The electronic inclination sensor assembly includes: electronic inclination sensor, electronic inclination sensor signal cable and electronic inclination sensor cover, the electronic inclination sensor is fixed in the inside of electronic inclination sensor cover, electronic inclination sensor signal cable is connected between the output of electronic inclination sensor and the input of data acquisition terminal, and the signal collected by electronic inclination sensor is transmitted to data acquisition terminal.

[0026] The data acquisition terminal includes: electronic inclination sensor signal acquisition circuit and single-chip microcomputer, the input of electronic inclination sensor signal acquisition circuit is connected with electronic inclination sensor signal cable, the output of electronic inclination sensor signal acquisition circuit is connected with the input port of single-chip microcomputer, and the output port of single-chip microcomputer is connected with the input of signal communication unit.

[0027] The signal communication unit includes: bluetooth communication interface module and remote communication interface module, signal transmission is implemented between bluetooth communication interface module and signal display control terminal, and short-range wireless communication is realized, and signal transmission is implemented between remote communication interface module and remote data measurement and control unit (RTU), and long-range wireless communication is realized.

[0028] The output signal of the Bluetooth communication interface module is communicated with a signal display control terminal, signal transmission is implemented between the Bluetooth communication interface module and the signal display control terminal, application software APP is installed on the signal display control terminal, and data of the electronic inclination sensor can be acquired and displayed on the APP after the APP is started.

[0029] The remote communication interface module is communicated with a remote data measurement and control unit (RTU), signal transmission from the remote communication interface module to the remote data measurement and control unit (RTU) is implemented, data is transmitted to the cloud by the remote data measurement and control unit (RTU), and the user can acquire the data of the level meter from the cloud by using a computer or a mobile phone.

[0030] The signal display control terminal is a mobile phone or a tablet computer.

[0031] Advantages, since the above technical scheme is adopted, the tipping bucket rain sensor can automatically detect the offset angle of the sensor when the ground subsides or the stand rod deforms, and the offset angle signal is transmitted to the single-chip microcomputer, the single-chip microcomputer judges whether the inclination angle of the tipping bucket rain sensor exceeds the early warning value, and the single-chip microcomputer outputs through the signal communication unit. The user can directly observe the rain station whose inclination angle exceeds the early warning value by using a computer or a mobile phone, and can know the inclination angle and the corresponding position, so that the rain station can be quickly and accurately maintained, and the accuracy of the tipping bucket rain sensor can be timely adjusted. Not only the problems of poor measurement accuracy and reliability caused by the tipping bucket rain sensor working in an inclined state are solved, but also the problems of great project maintenance difficulty and the need for a large amount of manpower and financial resources are solved.

[0032] Since the electronic inclination sensor assembly is adopted, the precision and sensitivity are greatly improved compared with the original level bubble, and the defects and disadvantages of the mechanical level bubble, such as poor precision and lack of remote digital signal transmission, are solved.

[0033] Advantages: in the technical scheme of the utility model, when the ground subsides or the stand rod deforms, the user can directly observe the rain station whose inclination angle exceeds the early warning value by using a computer or a mobile phone, and can know the inclination angle and the corresponding position, so that the rain station can be quickly and accurately maintained, and the accuracy of the tipping bucket rain sensor can be timely adjusted.

[0034] The electronic inclination sensor assembly greatly improves the precision and sensitivity compared with the original level bubble, and solves the defects and disadvantages of the mechanical level bubble, such as poor precision and lack of remote digital signal transmission.

[0035] The present application has the advantages of simple structure, easy installation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1The utility model discloses a structure schematic view.

[0037] Figure 2 The utility model discloses a data acquisition terminal control block diagram.

[0038] Figure 3 The utility model discloses a data acquisition terminal and signal communication unit's electric principle diagram.

[0039] In the figure, 1, rain inlet assembly, 2, outer tube, 3, base, 4, water injection funnel, 5, skip hoist support, 6, metering skip hoist assembly, 7, left skip hoist inclination support assembly, 8, right skip hoist inclination support assembly, 9, reed, 10, level bubble, 11, horizontal support plate, 12, support plate level adjusting device, 13, drainage funnel, 14, electronic inclination sensor, 15, data acquisition terminal, 16, signal communication unit, 17, signal display control terminal, 18, remote data measurement and control unit (RTU).

[0040] 6-1, skip hoist axle, 6-2, middle partition, 6-3, left skip hoist chamber, 6-4, right skip hoist chamber, 6-5, permanent magnet.

[0041] 14-1, electronic inclination sensor, 14-2, electronic inclination sensor signal cable.

[0042] 15-1, electronic inclination sensor signal acquisition circuit, 15-2, single-chip microcomputer.

[0043] 16-1, bluetooth communication interface module, 16-2, remote communication interface module. DETAILED DESCRIPTION

[0044] Example 1: Figure 1 The utility model discloses a high accuracy automatic detection, report level data's rain sensor, skip hoist rain sensor includes: rain inlet assembly 1, outer tube 2, base 3, water injection funnel 4, skip hoist support 5, metering skip hoist assembly 6, left skip hoist inclination support assembly 7, right skip hoist inclination support assembly 8, reed 9, level bubble 10, horizontal support plate 11, support plate level adjusting device 12 and drainage funnel 13;

[0045] The lower end of the outer cylinder 2 is connected with the base 3, the upper end of the outer cylinder 2 has the rain receiving opening assembly 1, the rain receiving opening assembly 1 is inserted into the outer cylinder 2; the base 3 is connected with the horizontal support plate level adjusting device 12, the horizontal support plate level adjusting device 12 is connected with the horizontal support plate 11; the tipping bucket support 5 is connected with the horizontal support plate 11, the upper end of the tipping bucket support 5 has the water injection funnel 4, the water receiving opening of the water injection funnel 4 is below the water outlet of the rain receiving opening assembly 1; the tipping bucket support 5 is connected with the measuring tipping bucket assembly 6, the measuring tipping bucket assembly 6 swings left and right with the tipping bucket support 5 as the fulcrum; the horizontal support plate 11 below the measuring tipping bucket assembly 6 is connected with the left tipping bucket inclination support column assembly 7 and the right tipping bucket inclination support column assembly 8, the left tipping bucket inclination support column assembly 7 and the right tipping bucket inclination support column assembly 8 are located on both sides of the fulcrum of the tipping bucket support 5; the horizontal bubble 10 is connected between the left tipping bucket inclination support column assembly 7 and the right tipping bucket inclination support column assembly 8; the tipping bucket support 5 has a tipping bucket shaft support, the tipping bucket shaft 6-1 is installed on the tipping bucket shaft support; the two water drainage funnels 13 are below the two bucket tips of the measuring tipping bucket assembly 6.

[0046] The measuring tipping bucket assembly 6 comprises the tipping bucket shaft 6-1, the middle partition plate 6-2, the left tipping bucket 6-3, the right tipping bucket 6-4 and the permanent magnet 6-5; the middle partition plate 6-2 is between the left tipping bucket 6-3 and the right tipping bucket 6-4, the middle partition plate 6-2 divides the two tipping buckets into the symmetrical left tipping bucket 6-3 and the right tipping bucket 6-4, the tipping bucket shaft 6-1 is on the bottom surface of the tipping bucket at the lower end of the middle partition plate 6-2; the permanent magnet 6-5 is connected on the side wall of the left tipping bucket 6-3 and the right tipping bucket 6-4.

[0047] The left tipping bucket 6-3 and the right tipping bucket 6-4 are each other's water draining bucket or water storage bucket, when one of the tipping buckets is filled with a certain amount of water, the tipping bucket turns to the other side with the tipping bucket shaft 6-1 as the axis, the one turning downward is the water draining bucket and the one turning upward is the water storage bucket, the water storage bucket's water receiving opening is below the water outlet of the water injection funnel 4; the permanent magnet 6-5 is installed on the tipping bucket, the reed switch 9 is installed on the corresponding position of the tipping bucket support 5, in the process of the tipping bucket turning, the permanent magnet 6-5 approaches the reed switch 9 and then leaves, which makes the contact in the reed switch 9 close and open once, so that a signal is generated each time the tipping bucket turns, the rainfall collection display instrument and the data processing system collect the signal to display the rainfall and process the data.

[0048] The rainfall enters the water injection funnel 4 from the rain receiving opening, then enters the water storage bucket of the tipping bucket, when the total turning moment MF caused by the change of the water in the water storage bucket is greater than the total reverse moment MN caused by the weight of the tipping bucket and other factors, the tipping bucket turns instantly, the received rainfall is drained, the other tipping bucket becomes the water storage bucket at this time, and the rainfall is measured in this way.

[0049] It also includes: rainwater inlet assembly 1, outer tube 2, base 3, water injection funnel 4, skip support 5, metering skip assembly 6, left skip angle support assembly 7, right skip angle support assembly 8, dry reed 9, horizontal bubble 10, horizontal support plate 11, support plate horizontal adjustment device 12 and drainage funnel 13; wherein the metering skip assembly 6 comprises: skip shaft 6-1, middle partition plate 6-2, left skip chamber 6-3, right skip chamber 6-4 and permanent magnet 6-5.

[0050] It also includes: electronic inclination sensor assembly 14, data acquisition terminal 15, signal communication unit 16, signal display control terminal 17 and remote data measurement and control unit (RTU) 18.

[0051] The electronic inclination sensor assembly 14 is installed on the horizontal support plate 11; the output end of the electronic inclination sensor assembly 14 is connected with the input end of the data acquisition terminal 15; the output end of the data acquisition terminal 15 is connected with the input end of the signal communication unit 16; the output end of the signal communication unit 16 is respectively connected with the signal display control terminal 17 and the remote data measurement and control unit (RTU) 18.

[0052] The electronic inclination sensor assembly 14 comprises: electronic inclination sensor 14-1, electronic inclination sensor signal cable 14-2 and electronic inclination sensor cover; the electronic inclination sensor 14-1 is fixed inside the electronic inclination sensor cover; the electronic inclination sensor signal cable 14-2 is connected between the output end of the electronic inclination sensor 14-1 and the input end of the data acquisition terminal 15, and transmits the signals collected by the electronic inclination sensor 14-1 to the data acquisition terminal 15.

[0053] The data acquisition terminal 15 comprises: electronic inclination sensor signal acquisition circuit 15-1 and single-chip microcomputer 15-2; the electronic inclination sensor signal cable 14-2 is connected to the input end of the electronic inclination sensor signal acquisition circuit 15-1; the output end of the electronic inclination sensor signal acquisition circuit 15-1 is connected with the input port of the single-chip microcomputer 15-2, and the output port of the single-chip microcomputer 15-2 is connected with the input end of the signal communication unit 16.

[0054] The signal communication unit 16 comprises: Bluetooth communication interface module 16-1 and remote communication interface module 16-2; the Bluetooth communication interface module 16-1 realizes short-distance wireless communication; the remote communication interface module 16-2 realizes long-distance wireless communication; wherein:

[0055] The output signal of the Bluetooth communication interface module 16-1 is connected with the signal display control terminal 17, signal transmission is implemented between the Bluetooth communication interface module 16-1 and the signal display control terminal 17, application software APP is installed on the signal display control terminal 17, and the data of the electronic inclination sensor 14-1 can be obtained after starting the APP, which is displayed on the APP.

[0056] The remote communication interface module 16-2 is in communication connection with a remote data measurement and control unit (RTU) 18, realizes signal transmission from the remote communication interface module 16-2 to the remote data measurement and control unit (RTU) 18, and the remote data measurement and control unit (RTU) 18 transmits data to the cloud, so that the user can obtain the level meter data from the cloud by using a computer or a mobile phone.

[0057] The signal display control terminal 17 is a mobile phone or a tablet computer.

Claims

1. A high-precision automatic detection, reporting horizontal data rain sensor, comprising: Rainfall inlet assembly, outer cylinder, base, water injection funnel, skip support, metering skip assembly, left skip angle support assembly, right skip angle support assembly, reed, level bubble, horizontal support plate, support plate horizontal adjustment device and water drainage funnel; wherein the metering skip assembly comprises a skip shaft, a middle partition plate, a left skip chamber, a right skip chamber and a permanent magnet; It is characterized by further comprising: an electronic inclination sensor assembly, a data acquisition terminal, a signal communication unit, a signal display control terminal and a remote data measurement and control unit (RTU); The electronic inclination sensor assembly is installed on the horizontal support plate; the output end of the electronic inclination sensor assembly is connected with the input end of the data acquisition terminal; the output end of the data acquisition terminal is connected with the input end of the signal communication unit; the output end of the signal communication unit is respectively connected in communication with the signal display control terminal and the remote data measurement and control unit (RTU).

2. The rain sensor of claim 1, wherein the rain sensor is characterized in that: The electronic inclination sensor assembly comprises an electronic inclination sensor, an electronic inclination sensor signal cable and an electronic inclination sensor cover; the electronic inclination sensor is fixed inside the electronic inclination sensor cover; the electronic inclination sensor signal cable is connected between the output end of the electronic inclination sensor and the input end of the data acquisition terminal, and transmits the signals collected by the electronic inclination sensor to the data acquisition terminal.

3. The rain sensor of claim 1, wherein the rain sensor is characterized in that: The data acquisition terminal comprises an electronic inclination sensor signal acquisition circuit and a single-chip microcomputer; the electronic inclination sensor signal acquisition circuit is connected with the electronic inclination sensor signal cable at the input end; the output end of the electronic inclination sensor signal acquisition circuit is connected with the input port of the single-chip microcomputer, and the output port of the single-chip microcomputer is connected with the input end of the signal communication unit.

4. The rain sensor of claim 1, wherein the rain sensor is characterized in that: The signal communication unit comprises a Bluetooth communication interface module and a remote communication interface module; the Bluetooth communication interface module and the signal display control terminal implement signal transmission and realize short-distance wireless communication; the remote communication interface module and the remote data measurement and control unit (RTU) implement signal transmission and realize long-distance wireless communication.

5. The rain sensor of claim 4, wherein the rain sensor is characterized in that: The output signal of the Bluetooth communication interface module is connected in communication with the signal display control terminal, and implements signal transmission between the Bluetooth communication interface module and the signal display control terminal; an application software APP is installed on the signal display control terminal, and after the APP is started, the data of the electronic inclination sensor can be acquired and displayed on the APP.

6. The rain sensor of claim 4, wherein the remote The communication interface module is connected in communication with the remote data measurement and control unit (RTU), and realizes signal transmission from the remote communication interface module to the remote data measurement and control unit (RTU); the remote data measurement and control unit (RTU) transmits data to the cloud, and the user can acquire the data of the level meter from the cloud by using a computer or a mobile phone.

7. The rain sensor of claim 1, wherein the rain sensor is characterized in that: The signal display control terminal is a mobile phone or a tablet computer.

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