JP2020064035A - Disaster prevention-capable satellite broadcast television device having rainfall intensity measurement and display function - Google Patents
Disaster prevention-capable satellite broadcast television device having rainfall intensity measurement and display function Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
Description
本発明は降雨強度、雨量などを計測、表示する機能を備えた防災対応衛星放送テレビジョン装置に関する。 The present invention relates to a disaster-prevention satellite broadcasting television device having a function of measuring and displaying rainfall intensity, rainfall amount, and the like.
特願2017−113001の請求項9ならびに発明の課題の請求項9に関する説明において、「衛星放送を受信している場合に、設置されているアンテナと受像機の間に、フィルター、検波回路、増幅回路、通信回路を内蔵した装置を介在させる」の文言があり、衛星放送受信テレビジョン装置とアンテナの間に衛星電波の降雨減衰を利用した降雨強度、雨量などを計測する装置を介在させることが示されている。 In the description of
しかし、この技術では、次の問題があった。However, this technique has the following problems.
1.衛星電波の降雨減衰から求めた降雨強度、雨量などのデータは、該テレビジョン装置とは関係のない別の通信手段で外部に送られ、そのデータを該テレビジョン装置で利用することが出来ない。該テレビジョン装置の所有者にとっては何のメリットもない。 1. The data such as the rainfall intensity and the rainfall amount obtained from the rain attenuation of the satellite radio waves are sent to the outside by another communication means unrelated to the television device, and the data cannot be used in the television device. . There is no merit to the owner of the television device.
2.既存のアンテナとテレビの間に入れる場合、立ち入り、ケーブル加工など、所有者の許可が必要で、場合によっては使用料も発生する 2. If you put it between the existing antenna and the TV, you need permission from the owner, such as entry and cable processing, and in some cases a fee will be charged
3.介在させる装置に電波を分岐するため、受像機に届く電力が半分になり、降雨時に写らなくなる場合が多くなる。 3. Since the radio wave is branched to the intervening device, the electric power reaching the receiver is halved, and it is often the case that the image is not captured during rainfall.
本発明は上記した従来技術における実情に鑑みてなされたもので、その目的は衛星放送を受信するテレビジョン装置自身で、降雨強度、雨量などを求めて該テレビジョンの画面上に表示するとともに、インターネットを介して、防災情報拠点などに送信し、防災情報拠点で分析して得られた降雨強度、雨量などの分布マップのデータを受信して画面上に表示する防災対応のテレビジョン装置を提供することにある。 The present invention has been made in view of the actual situation in the above-mentioned conventional art, and its purpose is to display on the screen of the television device by obtaining the rainfall intensity, the rainfall amount, etc. in the television device itself which receives satellite broadcasting. Provide a disaster prevention television device that transmits to the disaster prevention information base via the Internet, receives the distribution map data such as rainfall intensity and rainfall obtained by analysis at the disaster prevention information base, and displays it on the screen To do.
この目的を達成するために、本発明の請求項1に係わる発明は、テレビジョン装置の内部に、衛星電波の強度の、降雨強度、雨量などを求める機能を備えるものである。
衛星電波の強度の求め方としては、受像機のフロントエンドの入り口、すなわち、高周波増幅の入力側の信号を検波する方法の他に、高周波増幅回路に加わるAGC(映像利得制御)信号を利用する方法、MER(変調誤差比)を利用する方法などが考えられる。In order to achieve this object, the invention according to
As a method of obtaining the strength of the satellite radio wave, an AGC (video gain control) signal applied to the high frequency amplification circuit is used in addition to the method of detecting the signal at the entrance of the front end of the receiver, that is, the input side of the high frequency amplification. Methods, methods using MER (modulation error ratio), and the like are possible.
請求項2はテレビジョン装置内部で得られた降雨強度、雨量などを自分のテレビジョン装置の画面に表示し、閾値を設けて警告したりする機能を備えるものである。 A second aspect of the present invention has a function of displaying the rainfall intensity, the amount of rainfall, and the like obtained inside the television device on the screen of the television device of the user's own, and setting a threshold value to give a warning.
請求項3は、降雨強度、雨量などのデータをインターネット経由で、地方自治体、気象会社などの防災情報拠点に送信する機能、地域の複数テレビジョン装置から防災情報拠点に送られたデータを分析して得られた地域の降雨強度分布、雨量分布のマップならびに降雨強度の移動方向などをインターネット経由で、各テレビジョン装置で受信し、それぞれの画面に表示したり、警告したりする機能を備えるものである。
以上のように、本発明の各請求項に係わる発明によれば、設置場所付近の降雨強度、雨量などが画像表示され、防災情報拠点、気象会社などで加工された降雨強度、雨量などのマップを受信して画像表示されるので、強い降雨帯の移動状況、時間雨量、累積雨量をリアルタイムで知ることが出来、住民が避難を自分で判断することが出来る、すなわち、自助の判断材料を提供できる。さらに、このような防災対応の衛星放送受信テレビジョン装置が多数配置されれば、降雨強度、雨量の測定個所を多数確保することが出来るので、詳細な降雨強度分布、雨量分布を得ることが出来、地域の防災に大きく寄与することができる。 As described above, according to the inventions according to each claim of the present invention, the rainfall intensity, the rainfall amount, etc. near the installation place are displayed as an image, and the map of the rainfall intensity, the rainfall amount, etc. processed by the disaster prevention information base, the weather company, etc. Since it receives and displays the image, it is possible to know the movement status of the heavy rain zone, hourly rainfall, cumulative rainfall in real time, and residents can judge evacuation by themselves, that is, provide self-help judgment material it can. Further, if a large number of such satellite broadcasting receiving television devices for disaster prevention are arranged, it is possible to secure a large number of measurement points for rainfall intensity and rainfall amount, so that detailed rainfall intensity distribution and rainfall amount distribution can be obtained. , It can greatly contribute to local disaster prevention.
以下、本発明の衛星放送受信テレビジョン装置の実施形態を図1、図2、図3、図4に基づいて説明する。 Hereinafter, an embodiment of a satellite broadcast receiving television device of the present invention will be described with reference to FIGS. 1, 2, 3, and 4.
図1は本発明の1実施例を示す図である。図1では、パラボラアンテナのコンバーター出力が入る衛星放送受像機のフロントエンド部1と降雨強度、雨量解析部2の内容が示されている。フロントエンド部1では、高周波増幅(AGC)部1で増幅された後、局部発振2の信号と4及び5で混合され、LPF6を通って、7でAD変換され、I信号とQ信号がバックエンドへ出力され、複号化が行われ、ディスプレイに送られる。高周波増幅部1では、AGC(自動利得制御)により、信号レベルは一定に制御されている。
降雨強度、雨量解析部2では、1の入り口の信号を分岐し、高周波増幅部8で増幅したあと、検波部9で検波し、対数変換10の後、AD変換部11でディジタル信号に変換する。変換された信号は演算部12に送られ、降雨強度、雨量などを計算し、映像信号作成部14で映像信号に変換され、ディスプレイに送られ、表示される。
なお、パラボラアンテナからの信号の分岐は入力インピーダンスが高い高周波増幅器の入り口で行われるため、分岐による損失はない。FIG. 1 is a diagram showing an embodiment of the present invention. FIG. 1 shows the contents of the front-
In the rainfall intensity / rainfall
Since the signal from the parabolic antenna is branched at the entrance of the high frequency amplifier with high input impedance, there is no loss due to the branch.
さらに、降雨強度、雨量などのデータは通信制御部13を介してインターネットで防災情報拠点、気象会社などに送られる。防災情報拠点、気象会社などでは、各テレビジョン装置から送られた降雨強度、雨量などのデータを編集し、地域の降雨強度マップ、雨量マップを計算し、各テレビジョン装置に配信する。各テレビジョン装置では、通信制御部13で配信された信号を受け取り、画像作成部14を通して、ディスプレイに表示する。
防災情報拠点としては、地方自治体の防災関連部署、消防署などが相当し、データの内容によっては、避難準備、勧告などの参考資料として使用される。
フロントエンド部1の高周波増幅部1のAGC信号のレベルは電波の強度にほぼ比例することから、降雨強度、雨量解析部2の高周波増幅部8、検波部9を省略して、対数変換部10にAGC信号を送ってもよい。
また、ディジタル化の過程でMER(変調誤差比)が計算されるが、衛星の電波が降雨により減衰すると、MERが増加するので、この値を逆位相にして、AGC信号のかわりに、使用してもよい。いずれにしても、電波の強度に対応する信号が受像機の内部で作られていれば、これを利用して、降雨強度、雨量を求めればよいと考えられる。Further, the data such as the rainfall intensity and the rainfall amount are sent to the disaster prevention information base, the weather company and the like via the Internet via the
The disaster prevention information bases correspond to disaster prevention departments of local governments, fire departments, etc., and are used as reference materials for evacuation preparations, recommendations, etc., depending on the content of the data.
Since the level of the AGC signal of the high
Also, the MER (modulation error ratio) is calculated in the process of digitization, but when the satellite radio waves are attenuated by rainfall, the MER increases, so use this value in reverse phase instead of the AGC signal. May be. In any case, if a signal corresponding to the intensity of the radio wave is generated inside the receiver, it is considered that the rainfall intensity and the rainfall amount can be obtained using this.
図2は本発明でディスプレイに表示する降雨強度のグラフの例である。
電波の強度から求めた降雨強度をテレビジョン装置に表示した図で、横軸に時間、縦軸に一時間換算雨量を示しており、刻々の降雨強度(瞬間雨量)を過去の履歴も含めて見ることができる。降雨強度の単位はmm/hで示されるが、これは同じ状態が1時間継続したときの雨量mmを示している。FIG. 2 is an example of a graph of rainfall intensity displayed on the display according to the present invention.
The figure shows the rainfall intensity calculated from the intensity of radio waves on a television device. The horizontal axis shows time, and the vertical axis shows one-hour converted rainfall. The hourly rainfall intensity (instantaneous rainfall) is also included in the past history. You can see. The unit of rainfall intensity is mm / h, which indicates the amount of rainfall mm when the same state continues for 1 hour.
図3は本発明でディスプレイに表示する雨量のグラフの例である。
降雨強度を時間積分することにより、時間雨量が得られる。図は1時間雨量を示した図で、横軸が時間、縦軸が1時間雨量である。FIG. 3 is an example of a rainfall amount graph displayed on the display according to the present invention.
The hourly rainfall is obtained by integrating the rainfall intensity over time. The figure shows hourly rainfall, with the horizontal axis representing time and the vertical axis representing hourly rainfall.
図4は本発明でディスプレイに表示する降雨強度分布のグラフの例である。
防災情報拠点、気象会社などに送られた降雨強度のデータから、地域の降雨強度の分布図が作成され、各テレビジョン装置に送られてディスプレイの画面上に表示したグラフである。降雨強度は等降雨強度線で示され、刻々の移動方向も表示される。降雨強度の強さを色別で表示してもよい。FIG. 4 is an example of a rainfall intensity distribution graph displayed on the display according to the present invention.
It is a graph that a distribution map of rainfall intensity in a region is created from the rainfall intensity data sent to disaster prevention information bases, meteorological companies, etc., and is sent to each television device and displayed on the screen of the display. The rainfall intensity is indicated by a uniform rainfall intensity line, and the direction of movement is also displayed. The intensity of rainfall intensity may be displayed in different colors.
1 高周波増幅部(AGC)
2 局部発信部
3 混合部1
4 −90°位相器
5 混合部2
6 LPF(低域濾波器)
7 AD変換部
8 高周波増幅部
9 検波部
10 対数変換部
11 AD変換部
12 演算部
13 通信制御部
14 画像信号作成部
1 衛星放送受像機フロントエンド
2 降雨強度、雨量解析部1 High frequency amplifier (AGC)
2
4-90
6 LPF (low pass filter)
7
1 Satellite receiver front end
2 Rainfall intensity and rainfall analysis section
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