JPH01305393A - System for measuring amount of rainfall - Google Patents
System for measuring amount of rainfallInfo
- Publication number
- JPH01305393A JPH01305393A JP13769188A JP13769188A JPH01305393A JP H01305393 A JPH01305393 A JP H01305393A JP 13769188 A JP13769188 A JP 13769188A JP 13769188 A JP13769188 A JP 13769188A JP H01305393 A JPH01305393 A JP H01305393A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- rainfall
- attenuation
- propagation
- millimeter wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001556 precipitation Methods 0.000 claims description 5
- 230000002238 attenuated effect Effects 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は降雨時の電磁波伝播減衰量から降水量を求める
降雨量測定方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rainfall measurement method for determining the amount of rainfall from the amount of electromagnetic wave propagation attenuation during rainfall.
従来の降雨量測定方式は、転倒枡方式等の雨量計を設置
し、直接的に降雨量を測定するものであった。The conventional method for measuring rainfall is to install a rain gauge such as a tipping basin method and directly measure the amount of rainfall.
上述した従来の雨量計では、雨量計を設置したそのポイ
ントにおける計量データであるため、エリア内で雨量に
バラ付きがある場合にエリアを代表できる測定値となり
得ないという欠点、更に転倒枡方式では原理上振動のあ
る物体上（例えば船舶上）での測定が不正確となる上、
計量枡が転倒するまでの時間遅延を伴い迅速な測定がで
きない欠点がある。With the conventional rain gauge mentioned above, the measurement data is obtained at the point where the rain gauge is installed, so if there is variation in rainfall within the area, the measurement value cannot be representative of the area. In principle, measurements on objects that vibrate (for example, on ships) will be inaccurate, and
There is a drawback that rapid measurement cannot be performed due to the time delay until the weighing cell falls over.
本発明の降水量測定方式は、電磁波の伝播減衰を利用し
ており、特にミリ波帯近傍の電波が降雨により伝播減衰
することから、この減衰量を検出することによって降水
量を測定する方式である。The precipitation measurement method of the present invention utilizes the propagation attenuation of electromagnetic waves, and since radio waves near the millimeter wave band are propagated and attenuated due to rainfall, the method measures precipitation by detecting the amount of attenuation. be.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は、本発明の一実施例のブロック図である。１は
ミリ波送信部、２はミリ波受信部、３は伝播減衰量検出
部、４はデータ処理部を示す。FIG. 1 is a block diagram of one embodiment of the present invention. 1 is a millimeter wave transmitter, 2 is a millimeter wave receiver, 3 is a propagation attenuation detector, and 4 is a data processor.
次に本実施例の動作について説明する。Next, the operation of this embodiment will be explained.
ミリ波送信部１とミリ波受信部２は、降雨量の被測定空
間を隔てて設定されており、ミリ波送信部１が発信する
ミリ波はミリ波受信部２で受信し、伝播減衰量検出部３
にて減衰量を検出した後、データ処理部４に入力される
。降雨無しの時、送受信部（１，２＞間のミリ波伝播は
空気中での伝播減衰のみであるが、降雨時は雨滴粒子の
ミリ波吸収により、伝播減衰量が増大する。降雨強度と
伝播減衰量は特定の相関間係にあり、これをあらかじめ
データ処理部４に記憶しておく。これにより、データ処
理部４は伝播減衰量検出部３から入力した減衰量より該
当する降雨強度を求め、更に時間軸での積分演算により
被測定空間の平均的な降雨量を算出できる。The millimeter-wave transmitter 1 and the millimeter-wave receiver 2 are set apart from each other by the space to be measured for rainfall, and the millimeter-wave transmitted by the millimeter-wave transmitter 1 is received by the millimeter-wave receiver 2, and the amount of propagation attenuation is Detection part 3
After detecting the attenuation amount, it is input to the data processing section 4. When there is no rain, the millimeter wave propagation between the transmitter and receiver (1, 2) is only attenuated in the air, but when it rains, the amount of propagation attenuation increases due to millimeter wave absorption by raindrop particles. The propagation attenuation has a specific correlation, which is stored in advance in the data processing unit 4.Thereby, the data processing unit 4 calculates the corresponding rainfall intensity from the attenuation input from the propagation attenuation detection unit 3. The average amount of rainfall in the measured space can be calculated by calculating the amount of rainfall and then performing an integral calculation on the time axis.
以上説明したように本発明は、電磁波の降雨時伝播減衰
を利用することにより、空間の平均的な降水量を算出す
ることができ、転倒枡雨量計に比べ速かに且つ、船舶等
の振動体上においても測定できる効果がある。As explained above, the present invention makes it possible to calculate the average amount of precipitation in a space by using the propagation attenuation of electromagnetic waves during rain, and is able to calculate the average amount of precipitation in a space more quickly than an overturning rain gauge, and also to reduce vibrations of ships, etc. It also has measurable effects on the body.
第１図は本発明の一実施例のブロック図である。
１・・・ミリ波送信部、２・・・ミリ波受信部、３・・
・伝播減衰量検出部、４・・・データ処理部。FIG. 1 is a block diagram of one embodiment of the present invention. 1... Millimeter wave transmitter, 2... Millimeter wave receiver, 3...
- Propagation attenuation detection section, 4... data processing section.
Claims (1)
ることにより降水量を求めることを特徴とする降雨量測
定方式。A rainfall measurement method that determines the amount of precipitation by detecting the amount attenuated by electromagnetic waves during spatial propagation due to rain, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13769188A JPH01305393A (en) | 1988-06-03 | 1988-06-03 | System for measuring amount of rainfall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13769188A JPH01305393A (en) | 1988-06-03 | 1988-06-03 | System for measuring amount of rainfall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01305393A true JPH01305393A (en) | 1989-12-08 |
Family
ID=15204550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13769188A Pending JPH01305393A (en) | 1988-06-03 | 1988-06-03 | System for measuring amount of rainfall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01305393A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000275340A (en) * | 1999-03-25 | 2000-10-06 | Mitsubishi Electric Corp | Laser radar device |
| CN106548613A (en) * | 2016-11-02 | 2017-03-29 | 中国人民解放军理工大学 | For the region microwave link networking signal pickup assembly and method of Rainfall estimation |
| JP2018197734A (en) * | 2017-05-22 | 2018-12-13 | 安田電機暖房株式会社 | Rainfall measurement apparatus |
| JP2020064035A (en) * | 2018-10-17 | 2020-04-23 | 安田電機暖房株式会社 | Disaster prevention-capable satellite broadcast television device having rainfall intensity measurement and display function |
-
1988
- 1988-06-03 JP JP13769188A patent/JPH01305393A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000275340A (en) * | 1999-03-25 | 2000-10-06 | Mitsubishi Electric Corp | Laser radar device |
| CN106548613A (en) * | 2016-11-02 | 2017-03-29 | 中国人民解放军理工大学 | For the region microwave link networking signal pickup assembly and method of Rainfall estimation |
| JP2018197734A (en) * | 2017-05-22 | 2018-12-13 | 安田電機暖房株式会社 | Rainfall measurement apparatus |
| JP2020064035A (en) * | 2018-10-17 | 2020-04-23 | 安田電機暖房株式会社 | Disaster prevention-capable satellite broadcast television device having rainfall intensity measurement and display function |
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