JPH07260946A - Visibility distribution measuring system - Google Patents
Visibility distribution measuring systemInfo
- Publication number
- JPH07260946A JPH07260946A JP6046936A JP4693694A JPH07260946A JP H07260946 A JPH07260946 A JP H07260946A JP 6046936 A JP6046936 A JP 6046936A JP 4693694 A JP4693694 A JP 4693694A JP H07260946 A JPH07260946 A JP H07260946A
- Authority
- JP
- Japan
- Prior art keywords
- visibility
- detectors
- road
- scattered light
- values
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、霧或いは雪等の視程障
害の原因となる現象の空間的な分布状況を測定する視程
分布計測システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visibility distribution measuring system for measuring the spatial distribution of phenomena such as fog or snow that cause visibility problems.
【０００２】[0002]
【従来の技術】高速道路等，道路に於ける交通事故或い
は通行止めの誘因である視程状況をリアルタイム若しく
は事前に検知して運転者にその情報を与えることによ
り、事故や通行止めによる人命や経済的な損失を大きく
低減することができる。従来、道路沿の視程状況の検出
は道路脇に散乱光検出方式による視程計或いは霧検知器
等を単体で設置し、その検知器より得られるデータを周
囲の視程状況の代表値として道路情報に使用していた。
しかし、霧の発生は極めて局所的な現象である為、上記
のように単体の検知器による検出方法では空間的な分布
状況を検知することはできず、真に危険な悪視程地区を
発見できないという問題があった。2. Description of the Related Art A road accident such as a highway, or a visibility condition which is a cause of a road closure, is detected in real time or in advance and the information is given to a driver, so that the life or the economic situation due to an accident or road closure can be reduced. The loss can be greatly reduced. Conventionally, the visibility condition along the road is installed by a scattered light detection method or a visibility meter or a fog detector alone on the side of the road, and the data obtained from the detector is used as road information as a representative value of the surrounding visibility condition. I was using it.
However, since the fog is a very local phenomenon, it is not possible to detect the spatial distribution situation with the detection method using a single detector as described above, and it is not possible to find a truly dangerous bad visibility area. There was a problem.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、このような
問題を解決する為になされたもので、悪視程地区を確実
に発見することのできる視程分布計測システムを実現す
ることを目的としたものである。SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object thereof is to realize a visibility distribution measuring system capable of surely finding a bad visibility area. It is a thing.
【０００４】[0004]
【課題を解決するための手段】本発明は、所定の距離を
隔てた箇所に設置された複数個の散乱光検出器、各散乱
光検出器の出力を受けこれら散乱光検出器の設置場所と
その設置場所での視程値及び各散乱光検出器間の視程値
を演算により求める中央演算処理装置、及びこの中央演
算処理装置での演算結果を表示するディスプレイよりな
るものである。SUMMARY OF THE INVENTION The present invention is directed to a plurality of scattered light detectors installed at locations separated by a predetermined distance, receiving outputs of the scattered light detectors, and installing locations of these scattered light detectors. It is composed of a central processing unit for calculating the visibility value at the installation place and the visibility value between the scattered light detectors by calculation, and a display for displaying the calculation result in this central processing unit.
【０００５】[0005]
【作用】このような本発明では、各散乱光検出器の設置
場所とその設置場所での視程及び各検出器間の視程状況
が求められる。According to the present invention as described above, the installation location of each scattered light detector, the visibility at the installation location and the visibility situation between the detectors are required.
【０００６】[0006]
【実施例】以下図面を用いて本発明を説明する。図は本
発明に係わるシステムの一実施例を示した構成図であ
る。図において、１１，１２，…１ｎは夫々投・受光器
を備えた散乱光検出器である。投光器からの光が霧或い
は雪等に照射されると、その照射光は霧の深さ或いは雪
の量に応じて散乱する。散乱光検出器はこの検出器に用
いられる受光器でその散乱光を検出し、その検出信号を
信号変換するようになっている。これらの散乱光検出器
１１，１２，…１ｎは高速道路等，道路沿いに所定の距
離をおいて配置されている。設置する個数は道路長，或
いは環境等により適宜選定される。The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a system according to the present invention. In the figure, reference numerals 11, 12, ... 1n denote scattered light detectors each having a light emitter and a light receiver. When the light from the projector is applied to fog or snow, the irradiation light is scattered depending on the depth of fog or the amount of snow. The scattered light detector is designed to detect the scattered light with a light receiver used for this detector and convert the detection signal into a signal. The scattered light detectors 11, 12, ... 1n are arranged at a predetermined distance along a road such as an expressway. The number to be installed is appropriately selected according to the road length or environment.
【０００７】２０は所定の場所に設けられた中央演算処
理装置である。道路沿いに所定の距離をおいて配置され
た散乱光検出器１１，１２，…１ｎの出力端は、ケーブ
ル，或いは無線等を通じて中央演算処理装置２０に接続
されている。この中央演算処理装置は各検出器１１，１
２，…１ｎの出力信号を受けてそれら検出器の設置場所
と各検出器の出力信号のレベルを識別し、各検出器の設
置場所での視程値を演算処理により求める機能を備えて
いる。更に、この中央演算処理装置は、各検出器からの
測定データを基にして検出器間の補完演算を行うことに
より、各検出器が設置された場所以外での視程値を推定
することができるようになっている。Reference numeral 20 is a central processing unit provided at a predetermined location. The output ends of the scattered light detectors 11, 12, ... 1n arranged at a predetermined distance along the road are connected to the central processing unit 20 via a cable, a radio, or the like. This central processing unit is provided with each detector 11,1.
It has a function of receiving the output signals of 2 ... 1n, identifying the installation locations of these detectors and the levels of the output signals of the respective detectors, and calculating the visibility value at the installation location of each detector by calculation processing. Further, this central processing unit can estimate the visibility value other than the place where each detector is installed by performing the complementary calculation between the detectors based on the measurement data from each detector. It is like this.
【０００８】３０はディスプレイで、中央演算処理装置
２０に接続されている。このディスプレイは中央演算処
理装置２０での演算処理結果を表示するものである。こ
のような構成の本発明に係わるシステムの動作を説明す
ると次の如くなる。A display 30 is connected to the central processing unit 20. This display displays the calculation processing result in the central processing unit 20. The operation of the system according to the present invention having such a configuration will be described as follows.
【０００９】道路沿いに所定の距離をおいて設置された
散乱光検出器１１，１２，…１ｎの出力信号は中央演算
処理装置２０に設けたマルチプレクサにより、順次この
中央演算処理装置に取り込まれる。天候の変化により霧
が発生したり，雪が降ったりすると視程が悪化する。上
記のように、本発明においては複数個の検出器１１，１
２，…１ｎが道路沿いに所定の間隔をおいて配置されて
いるので、霧の発生或いは降雪地域が狭い地域であって
も、何れかの散乱光検出器はその状況，即ち散乱光検出
器が設置された地域での霧或いは雪の状況を検出する。The output signals of the scattered light detectors 11, 12, ... 1n installed along the road at a predetermined distance are sequentially taken into the central processing unit by a multiplexer provided in the central processing unit 20. The visibility deteriorates if fog is generated or snow falls due to changes in the weather. As described above, in the present invention, the plurality of detectors 11, 1
Since 2 ... 1n are arranged at a predetermined interval along the road, even if the area where the fog is generated or the snowfall area is narrow, one of the scattered light detectors is in that situation, that is, the scattered light detector. Detects the condition of fog or snow in the area where is installed.
【００１０】中央演算処理装置２０は各検出器から取り
込んだ信号を視程状況に応じた値，例えばＭＯＲ(Meteo
rological Optical Range)に変換し、各検出器の設置場
所とそこでのＭＯＲ値を演算により求め、その演算結果
はディスプレイ３０で表示される。更に、中央演算処理
装置２０は測定データを基にして検出器間の補完演算を
行うことにより、各検出器が設置された場所以外でのＭ
ＯＲ値を推定する。このようにして、本発明において
は、道路沿いの各地での視程を求めることができ、これ
により悪視程地区を車の運転者にリアルタイムで知らせ
ることができる。The central processing unit 20 uses the signals fetched from the respective detectors as values corresponding to the visibility condition, for example, MOR (Meteo).
(Rological Optical Range), the installation location of each detector and the MOR value at that location are calculated, and the calculation result is displayed on the display 30. Further, the central processing unit 20 performs a complementary calculation between the detectors based on the measurement data, so that the M at a place other than the place where each detector is installed.
Estimate the OR value. In this way, according to the present invention, the visibility in various places along the road can be obtained, and thus the driver of the vehicle can be notified of the bad visibility area in real time.
【００１１】なお、散乱光検出器１１，１２，…１ｎの
設置箇所は道路沿いに限るものではなく、道路を含んだ
広範囲の場所，例えば格子状に設置することにより、悪
視程部の風等による移動状況が明らかとなり、道路上で
の視程状況の予測が可能となる。The installation locations of the scattered light detectors 11, 12, ... 1n are not limited to along the road, but can be set in a wide area including the road, for example, in a grid pattern, so that the wind in the bad visibility range, etc. The movement situation is clear and the visibility on the road can be predicted.
【００１２】[0012]
【発明の効果】本発明によれば、複数個の散乱光検出器
を用い、この複数個の散乱光検出器を所定の間隔をおい
て設置するようにしたので、霧或いは雪等による視程障
害の原因となる現象が極所的であっても、その地域の視
程状況をリアルタイムで確実に検出することができる。
更に、複数個の検出器より取り込んだデータを基にして
中央演算処理装置により補完演算することによって検出
器を設置した地域以外の地域での視程状況，即ち視程障
害の原因となる現象の空間的な分布状況を検出すること
のできるシステムを得ることができる。なお、本システ
ムに使用する検出器自体には演算処理部を有する必要が
なく、演算処理部を有する検出器を複数個用意するよう
にしたシステムに比較して本システムは極めて安価で得
ることができる特徴がある。According to the present invention, since a plurality of scattered light detectors are used and the plurality of scattered light detectors are arranged at a predetermined interval, visibility disturbance due to fog or snow is caused. Even if the phenomenon that causes the phenomenon is extreme, it is possible to reliably detect the visibility condition of the area in real time.
In addition, the central processing unit performs complementary calculation based on the data acquired from a plurality of detectors, and the visibility situation in the area other than the area where the detectors are installed, that is, the spatial condition of the phenomenon causing the visibility disturbance. It is possible to obtain a system capable of detecting various distribution situations. It should be noted that the detector itself used in this system does not need to have an arithmetic processing unit, and this system can be obtained at an extremely low cost as compared with a system in which a plurality of detectors having an arithmetic processing unit are prepared. There is a feature that can be done.
【図１】本発明の一実施例を示した構成図である。FIG. 1 is a configuration diagram showing an embodiment of the present invention.
１１，１２，…１ｎ 散乱光検出器 ２０ 中央演算処理装置 ３０ディスプレイ 11, 12, ... 1n Scattered light detector 20 Central processing unit 30 Display
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岡本 純 東京都中央区新川１丁目５番13号 横河ウ エザック株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jun Okamoto 1-5-13 Shinkawa, Chuo-ku, Tokyo Inside Yokogawa Wezak Co., Ltd.
Claims (1)
個の散乱光検出器、各散乱光検出器の出力を受けこれら
散乱光検出器の設置場所とその設置場所での視程値及び
各散乱光検出器間の視程値を演算により求める中央演算
処理装置、及びこの中央演算処理装置での演算結果を表
示するディスプレイよりなる視程分布計測システム。1. A plurality of scattered light detectors installed at locations separated by a predetermined distance, receiving the outputs of the scattered light detectors, the installation locations of these scattered light detectors, and the visibility values at the installation locations. A visibility distribution measuring system comprising a central processing unit for calculating a visibility value between scattered light detectors by calculation and a display for displaying a calculation result in the central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6046936A JPH07260946A (en) | 1994-03-17 | 1994-03-17 | Visibility distribution measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6046936A JPH07260946A (en) | 1994-03-17 | 1994-03-17 | Visibility distribution measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07260946A true JPH07260946A (en) | 1995-10-13 |
Family
ID=12761210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6046936A Withdrawn JPH07260946A (en) | 1994-03-17 | 1994-03-17 | Visibility distribution measuring system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07260946A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745915A1 (en) * | 1996-03-07 | 1997-09-12 | Com 1 | Fog detection device for automotive applications |
| JPH11271469A (en) * | 1998-03-23 | 1999-10-08 | Mitsubishi Electric Corp | Fog observation method and fog observation radar system |
| CN102568218A (en) * | 2011-12-09 | 2012-07-11 | 东南大学 | Method for determining safe running speed on expressway under crosswind |
| CN102622892A (en) * | 2012-04-01 | 2012-08-01 | 南京理工大学 | Automatic fog condition detection and alarm system and method for expressway |
-
1994
- 1994-03-17 JP JP6046936A patent/JPH07260946A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745915A1 (en) * | 1996-03-07 | 1997-09-12 | Com 1 | Fog detection device for automotive applications |
| JPH11271469A (en) * | 1998-03-23 | 1999-10-08 | Mitsubishi Electric Corp | Fog observation method and fog observation radar system |
| CN102568218A (en) * | 2011-12-09 | 2012-07-11 | 东南大学 | Method for determining safe running speed on expressway under crosswind |
| CN102622892A (en) * | 2012-04-01 | 2012-08-01 | 南京理工大学 | Automatic fog condition detection and alarm system and method for expressway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010605 |