Pluviometer capable of passively transmitting raindrop information

Abstract

The invention provides a rain gauge capable of passively transmitting raindrop information, which comprises a shell, a rain receiving funnel, a tipping bucket, two water diversion funnels, an optical cable, an optical cable monitoring host and a processing terminal, the rain receiving funnel, the tipping bucket and the two water diversion funnels are sequentially arranged in the shell from top to bottom, and the optical cable, the optical cable monitoring host and the processing terminal are sequentially connected. A tipping bucket partition plate for dividing the tipping bucket into two cavities is arranged in the tipping bucket, and the tipping bucket is rotatably connected with the shell; two water diversion funnels are correspondingly arranged below the water outlets of the two cavities of the tipping bucket; two sensing optical cables are formed on the optical cable in a winding mode at intervals and are correspondingly arranged below the water outlets of the two water diversion funnels. According to the embodiment, the optical cable monitoring host is arranged to collect the optical signals of the sensing optical cable when the raindrops drip, and the processing terminal can determine the rainfall process according to the optical signals. Therefore, according to the rain gauge, on the premise that the rainfall process is determined, power supply of an external power source is omitted, and energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rain gauges, in particular to a rain gauge that passively transmits raindrop information. Background Art

[0002] The tipping bucket rain gauge is an instrument used to observe rainfall. It can convert rainfall into digital information output to meet the needs of information transmission, processing, recording and display.

[0003] At present, the most widely used tipping bucket rain gauge is that rainwater enters the water receiver through the water receiving port at the top, falls into the water diversion funnel and flows into the tipping bucket. The two sides of the bottom of the tipping bucket are connected to the tipping bucket bracket through the rotating shaft. The middle of the tipping bucket is divided into two water chambers by a partition. When the amount of water in the tipping bucket reaches a certain capacity, the tipping bucket loses balance and overturns. Then the rainwater falls into the water chamber on the other side of the tipping bucket, and then the tipping bucket begins to flip back and forth. Every time the tipping bucket tips over, the switch connects the circuit and transmits a pulse signal to the recorder, which records the rainfall. In this way, the rainfall process can be measured.

[0004] Therefore, related tipping bucket rain gauges all require an external power supply to provide power to collect and transmit relevant information about raindrops when tipping over, which will result in energy consumption. If an external solar panel is connected, it will affect the energy supply of the solar panel on rainy days, making the rain gauge unable to work normally. Summary of the invention

[0005] The content of the present invention is used to introduce the concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of the present disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] Some embodiments of the present invention provide a rain gauge for passively transmitting raindrop information to solve the technical problems mentioned in the above background technology section.

[0007] The rain gauge comprises a housing, a rain collecting funnel, a tipping bucket, two water diversion funnels, an optical cable, an optical cable monitoring host and a processing terminal which are sequentially arranged in the housing from top to bottom, wherein:

[0008] The rain collecting funnel is connected to the opening at the top of the shell;

[0009] A bucket partition is provided in the bucket to divide the bucket into two chambers, and the bucket is rotatably connected to the shell; two water diversion funnels are correspondingly provided below the water outlets of the two chambers of the bucket;

[0010] Two sensing optical cables are formed by winding the optical cable at intervals, and the two sensing optical cables are correspondingly arranged under the water outlets of two water diversion funnels;

[0011] The optical cable monitoring host is used to collect the optical signal of the sensing optical cable and transmit it to the processing terminal; the processing terminal is used to determine the rainfall process according to the optical signal.

[0012] Optionally, a bracket is fixedly provided in the shell, the rain collecting funnel is fixedly provided to the top of the bracket, and the tipping bucket is rotatably connected to the tipping bucket via a rotating shaft.

[0013] Optionally, a counterweight is provided at the top of the dump bucket partition.

[0014] Optionally, the inductive optical cable is coiled in a fiber coiling box.

[0015] Optionally, the optical cable between the two sensing optical cables is coiled to form an isolation optical cable.

[0016] Optionally, the processing terminal performs noise reduction processing on the optical signal and obtains light intensity information of the optical signal.

[0017] Optionally, the processing terminal compares the light intensity information of the light signal with the initial light intensity information to determine the difference in light intensity, and the difference in light intensity is used to characterize the vibration amplitude of the raindrops.

[0018] Optionally, in response to the light intensity difference exceeding a preset threshold, it indicates that raindrops are falling.

[0019] Optionally, the time interval between two adjacent light intensity differences exceeding a preset threshold is used to characterize the vibration frequency of raindrops.

[0020] Optionally, the processing terminal determines the mass of raindrops and the dripping frequency according to the vibration amplitude and the vibration frequency, thereby determining the rainfall process.

[0021] The above-mentioned embodiment of the present invention has the following beneficial effects: the rain gauge for passively transmitting raindrop information of the present invention collects the optical signal of the sensing optical cable when raindrops fall by setting an optical cable listening host, and the processing terminal can determine the rainfall process according to the optical signal. In this way, the rain gauge of the present application can save the power supply of the external power supply and reduce energy consumption under the premise of determining the rainfall process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The schematic diagram is a structural diagram of an embodiment of a rain gauge for passively transmitting raindrop information according to the present invention.

[0024] Description of reference numerals:

[0025] 11: rain collecting funnel; 21: tipping bucket; 31: tipping bucket baffle; 41: water diversion funnel; 42: water diversion funnel; 51: induction optical cable; 52: induction optical cable; 61: isolation optical cable. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0030] See also Figure 1 , Figure 1 FIG. 1 is a schematic diagram of the structure of an embodiment of a rain gauge for passively transmitting raindrop information of the present invention. Figure 1 As shown, the rain gauge for passively transmitting raindrop information includes a shell, in which a rain receiving funnel 11, a tipping bucket partition 31, a tipping bucket 21, two water diversion funnels 41, 42, and an optical cable, an optical cable monitoring host and a processing terminal connected in sequence are arranged from top to bottom.

[0031] The rain collecting funnel 11 is arranged on the top of the housing, and the housing is provided with an opening connected to the rain collecting funnel 11. A bracket can be arranged in the housing, and the rain collecting funnel 11 is arranged on the top of the bracket. In the working state, rainwater flows into the rain collecting funnel 11 from the opening on the top of the housing, and then flows into the tipping bucket 21 below.

[0032] The bucket partition 31 is fixedly connected to the bucket 21, dividing the bucket 21 into two chambers. Furthermore, a counterweight block can be set at the upper end of the bucket partition 31. The bucket 21 can also be rotatably connected to the bracket via a rotating shaft. Figure 1 When the amount of water in the tipping bucket 21 gradually increases, the tipping bucket 21 can swing around the rotating shaft under the action of the counterweight, so that rainwater flows down from the left or right water outlet of the tipping bucket 21.

[0033] Two water diversion funnels 41 and 42 are correspondingly arranged below the left and right ends of the tipping bucket 21, and the optical cable is placed below the water outlets of the two water diversion funnels 41 and 42. Figure 1As shown, the left end of the optical cable can be fixed, and the right end of the optical cable is connected to the optical cable monitoring host. Two sensing optical cables 51 and 52 are coiled at intervals on the optical cable, and the two sensing optical cables 51 and 52 are correspondingly arranged below the water outlets of the two water diversion funnels 41 and 42. The two sensing optical cables 51 and 52 can also be coiled by a fiber coiling box.

[0034] Taking the case where rainwater flows out from the water outlet at the left end of the tipping bucket 21 as an example, after the rainwater falls into the water diversion funnel 41 on the left side, it flows out from the water outlet at the bottom of the water diversion funnel 41 and drips onto the induction optical cable 51 .

[0035] The optical cable monitoring host can collect the optical signal of the sensing optical cable 51 and transmit it to the processing terminal. The optical signal is used to reflect the raindrop information. The processing terminal obtains the light intensity information of the optical signal by performing noise reduction processing on the optical signal.

[0036] The processing terminal can store initial light intensity information, i.e., light intensity information when there is no raindrop affecting the light signal. By comparing the light intensity information with the initial light intensity information, the difference in light intensity represented by the two light intensity information is determined. When the difference in light intensity exceeds a preset threshold, it indicates that raindrops are falling. The difference in light intensity can be used to represent the vibration amplitude of raindrops, i.e., the mass of raindrops. The time interval between two adjacent light intensity differences exceeding the preset threshold can be used to represent the vibration frequency of raindrops, i.e., the falling frequency of raindrops.

[0037] As an example, the above-mentioned processing terminal may include a vibration amplitude and a correspondence table. Among them, the correspondence table may be a correspondence table based on the correspondence between a large number of vibration amplitudes and raindrop masses by those skilled in the art. In this way, the obtained vibration amplitude is compared with multiple vibration amplitudes in the correspondence table in turn. If a certain vibration amplitude in the correspondence table is the same or similar to the vibration amplitude, the raindrop mass corresponding to the vibration amplitude in the correspondence table is used as the raindrop mass corresponding to the vibration amplitude. In this way, the processing terminal can obtain the raindrop mass of each raindrop. If the vibration amplitude is not similar to any vibration amplitude in the correspondence table, the vibration amplitude is added to the correspondence table. Accordingly, the raindrop mass corresponding to the vibration amplitude can be determined by experiment or by calculating the data in the correspondence table. In this way, the correspondence table is continuously iterated to more accurately determine the raindrop mass.

[0038] Similarly, the above-mentioned processing terminal may also include a vibration frequency and a correspondence table. Among them, the correspondence table may be a correspondence table based on the correspondence between a large number of vibration frequencies and the dripping frequency of raindrops by those skilled in the art. In this way, the obtained vibration frequency is compared with the multiple vibration frequencies in the correspondence table in turn. If a certain vibration frequency in the correspondence table is the same or similar to the vibration frequency, the dripping frequency of raindrops corresponding to the vibration frequency in the correspondence table is used as the dripping frequency of raindrops corresponding to the vibration frequency. In this way, the processing terminal can obtain the dripping frequency of raindrops. If the vibration frequency is not similar to any vibration frequency in the correspondence table, the vibration frequency is added to the correspondence table. Accordingly, the dripping frequency corresponding to the vibration frequency can be determined by experiment or by calculating the data in the correspondence table. In this way, the correspondence table is continuously iterated to more accurately determine the dripping frequency of raindrops.

[0039] Finally, the processing terminal records the rainfall process in a table or by establishing a coordinate system according to the raindrop mass and the falling frequency of the raindrops. As an example, the processing terminal may be a terminal capable of data reception, data processing, data storage and output, and may be an FPGA (Field Programmable Gate Array) controller, etc.

[0040] Furthermore, the optical cable between the two sensing optical cables 51 and 52 is coiled to form an isolation optical cable 61, which can avoid interference between the two sensing optical cables 51 and 52, thereby ensuring the accuracy of the rainfall observed by the rain gauge.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rain gauge for passively transmitting raindrop information, characterized in that: It includes a shell, a rain collecting funnel, a tipping bucket, two water diversion funnels, and an optical cable, an optical cable monitoring host and a processing terminal connected in sequence from top to bottom, wherein: The rain collecting funnel is connected to the opening at the top of the shell; A bucket partition is provided in the bucket to divide the bucket into two chambers, and the bucket is rotatably connected to the shell; two water diversion funnels are correspondingly provided below the water outlets of the two chambers of the bucket; Two sensing optical cables are formed by winding the optical cable at intervals, and the two sensing optical cables are correspondingly arranged under the water outlets of two water diversion funnels; The optical cable monitoring host is used to collect the optical signal of the sensing optical cable and transmit it to the processing terminal; the processing terminal is used to determine the rainfall process according to the optical signal.

2. The rain gauge for passively transmitting raindrop information according to claim 1, characterized in that: A bracket is fixedly arranged in the shell, the rain collecting funnel is fixedly arranged on the top of the bracket, and the tipping bucket is rotatably connected with the tipping bucket through a rotating shaft.

3. The rain gauge for passively transmitting raindrop information according to claim 1, characterized in that: A counterweight is arranged on the top of the dump bucket partition.

4. The rain gauge for passively transmitting raindrop information according to claim 1, characterized in that: The inductive optical cable is coiled by a fiber coiling box.

5. The rain gauge for passively transmitting raindrop information according to claim 1, characterized in that: The optical cable between the two sensing optical cables is coiled to form an isolation optical cable.

6. The rain gauge for passively transmitting raindrop information according to claim 1, characterized in that: The processing terminal performs noise reduction processing on the optical signal and obtains light intensity information of the optical signal.

7. The rain gauge for passively transmitting raindrop information according to claim 1, characterized in that: The processing terminal compares the light intensity information of the light signal with the initial light intensity information to determine the difference in light intensity, and the difference in light intensity is used to characterize the vibration amplitude of the raindrops.

8. The rain gauge for passively transmitting raindrop information according to claim 7, characterized in that: In response to the light intensity difference exceeding a preset threshold, it indicates that raindrops are falling.

9. The rain gauge for passively transmitting raindrop information according to claim 8, characterized in that: The time interval between two adjacent light intensity differences exceeding a preset threshold is used to characterize the vibration frequency of raindrops.

10. The rain gauge for passively transmitting raindrop information according to claim 9, characterized in that: The processing terminal determines the mass of raindrops and the dripping frequency according to the vibration amplitude and the vibration frequency, thereby determining the rainfall process.

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