JPH10162277A - Vehicle accident reporting device - Google Patents
Vehicle accident reporting deviceInfo
- Publication number
- JPH10162277A JPH10162277A JP31742296A JP31742296A JPH10162277A JP H10162277 A JPH10162277 A JP H10162277A JP 31742296 A JP31742296 A JP 31742296A JP 31742296 A JP31742296 A JP 31742296A JP H10162277 A JPH10162277 A JP H10162277A
- Authority
- JP
- Japan
- Prior art keywords
- accident
- vehicle
- occurrence
- signal
- sound
- 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
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- Alarm Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は高速道路等における
車両事故の発生を検知するために、事故によって発生す
る音響信号を処理する信号処理装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal processing device for processing an acoustic signal generated by an accident in order to detect the occurrence of a vehicle accident on a highway or the like.
【０００２】[0002]
【従来の技術】従来、車両の走行中に事故が発生した場
合、その車両に乗車している者または目撃者が、公衆電
話、非常電話又は携帯電話等により、警察、消防署等へ
通報するのが一般的である。しかし、事故発生箇所の付
近にこれらの電話がない場合や、目撃者がなく事故当事
者が怪我のため通報困難な場合には通報が大きく遅れ
る。また、これらの電話が事故発生箇所の付近にあった
場合でも、事故を通報するまでに数十秒から数分の時間
を要し、この間に後続車による玉突事故発生の可能性が
ある。2. Description of the Related Art Conventionally, when an accident occurs while a vehicle is running, a person or witness who is riding in the vehicle notifies a police, a fire department or the like by a public telephone, an emergency telephone or a mobile telephone. Is common. However, if there is no such telephone near the accident location, or if there is no witness and the accident party is injured and difficult to report, the report is greatly delayed. Even when these telephones are located near the accident location, it takes several tens of seconds to several minutes to report the accident, and during that time there is a possibility that a subsequent car may cause a collision.
【０００３】また、特開平８−３０８８５号公報のよう
に、各車に車載事故自動通報装置を携帯させ、事故発生
を通報する手段が考案されているが、この場合全ての車
両に車載事故自動通報装置を携帯させる必要があるこ
と、及び事故の衝撃により車載事故自動通報装置自身が
故障し事故を通知できない場合がある。As disclosed in Japanese Patent Application Laid-Open No. Hei 8-30885, means for reporting the occurrence of an accident by carrying an in-vehicle accident automatic notification device in each vehicle has been devised. In some cases, the notification device needs to be carried, and the vehicle-mounted accident automatic notification device itself fails due to the impact of the accident, and the accident cannot be notified.
【０００４】[0004]
【発明が解決しようとする課題】事故発生の発生を、天
候、時間、視界の善し悪しに関係なく、また事故当事者
または目撃者の通報を待つことなく瞬時に通報すると同
時に、後続車への警告を発することにより玉突衝突等の
２次災害を防止することを目的としている。The occurrence of an accident is reported instantaneously without regard to weather, time, and visibility, and without waiting for a report from an accident party or a witness. The purpose is to prevent secondary disasters such as a collision by emitting.
【０００５】[0005]
【課題を解決するための手段】衝突音・タイヤのきしみ
音等の不連続な音響信号を検出することにより、天候、
時間、視界の影響を受ずに事故の発生を検出する。SUMMARY OF THE INVENTION By detecting discontinuous acoustic signals such as a collision sound and a squeaking sound of a tire, the weather,
Detect the occurrence of an accident without being affected by time and visibility.
【０００６】ここで、請求項１は、周囲の交通状況をマ
イクロフォンにて収集し、この音響信号を周波数分析
し、衝突音・タイヤのきしみ音等の事故発生時の特徴的
なスペクトルパターンを検出することにより、事故の発
生を通報するものである。Here, a first aspect of the present invention is to collect a surrounding traffic situation by a microphone, analyze a frequency of the acoustic signal, and detect a characteristic spectrum pattern at the time of occurrence of an accident such as a collision sound and a squeaking sound of a tire. By doing so, the occurrence of an accident is reported.
【０００７】請求項２は、衝突音・タイヤのきしみ音等
の事故発生時の特徴的な音の時間波形パターンを検出す
ることにより、事故の発生を通報するものである。A second aspect of the present invention is to notify the occurrence of an accident by detecting a time waveform pattern of a characteristic sound at the time of the occurrence of the accident, such as a collision sound or a squeaking sound of a tire.
【０００８】[0008]
【発明の実施の形態】請求項１の実施例を図１に示す。
マイクロフォン１により道路からの音を受信する。この
音響信号を増幅器２により増幅し、周波数分析器３によ
りスペクトル成分を抽出し、不連続信号抽出器４により
不連続信号を検出する。一方、標本周波数パターン記憶
器５にはあらかじめ事故発生による特徴的な不連続信号
に対するスペクトルパターンを複数個記憶させておき、
前述の周波数分析器３との比較を比較器５により行う。
これにより、クラクション、積み荷の振動音等の事故以
外の不連続音と事故発生音とを分離し、この結果事故発
生を検出した場合は、送信機７により交通管制センタ等
への通報を自動的に行う。FIG. 1 shows an embodiment of the present invention.
The sound from the road is received by the microphone 1. This acoustic signal is amplified by the amplifier 2, a spectrum component is extracted by the frequency analyzer 3, and a discontinuous signal is detected by the discontinuous signal extractor 4. On the other hand, a plurality of spectral patterns for the discontinuous signal characteristic of the accident are stored in the sample frequency pattern storage 5 in advance.
The comparison with the frequency analyzer 3 is performed by the comparator 5.
As a result, discontinuous sounds other than accidents, such as horns and vibrations of cargo, are separated from accident sounds. As a result, when an accident is detected, the transmitter 7 automatically notifies the traffic control center and the like. To do.
【０００９】さらに、周波数分析器３と不連続信号抽出
器４の処理フローの一例を図２に示す。周波数分析器３
には、一定時間Δｔの音響信号を記憶しておき、このΔ
ｔ時間毎に周波数分析を行う。周波数分析結果は、不連
続信号抽出器４に送られ、これを記憶しておく。本実施
例では、最新の周波数分析結果を記憶器４０１に、Δｔ
時間前の周波数分析結果を記憶器４０２に、Δｔ×２時
間前の周波数分析結果を記憶器４０３に記憶しておく。
なお、各記憶器のデータは最新の周波数分析結果が入力
されることにより更新するものであり、記憶器の数は３
個以上であれば複数個持つことが可能である。まず記憶
器４０２と記憶器４０３の周波数成分を周波数成分比較
器４０４で比較し同一の周波数成分である場合は、過去
からの継続している連続信号の場合は非事故の判定を行
う。また、記憶器４０１と記憶器４０２の周波数成分を
周波数成分比較器４０５で比較し同一の周波数成分の場
合は、Δｔ時間前に発生した新たな連続信号として非事
故の判定を行う。ここで、周波数成分比較器４０４と周
波数成分比較器４０５が、共に非事故と判定しなかった
場合は不連続信号が発生したことを認識し、比較器５へ
周波数成分を送出する。FIG. 2 shows an example of the processing flow of the frequency analyzer 3 and the discontinuous signal extractor 4. Frequency analyzer 3
Stores an acoustic signal for a certain time Δt,
A frequency analysis is performed every t time. The frequency analysis result is sent to the discontinuous signal extractor 4 and stored therein. In the present embodiment, the latest frequency analysis result is stored in the storage unit 401 by Δt.
The frequency analysis result before time is stored in the storage unit 402, and the frequency analysis result before Δt × 2 time is stored in the storage unit 403.
The data in each memory is updated by inputting the latest frequency analysis result.
If it is more than one, it is possible to have more than one. First, the frequency components of the storage device 402 and the storage device 403 are compared by the frequency component comparator 404, and if the frequency components are the same, a non-accident determination is made in the case of a continuous signal that has been continued from the past. Further, the frequency components of the storage unit 401 and the storage unit 402 are compared by the frequency component comparator 405, and if the frequency components are the same, a non-accident determination is made as a new continuous signal generated before the time Δt. Here, when both the frequency component comparator 404 and the frequency component comparator 405 do not determine that there is no accident, it recognizes that a discontinuous signal has occurred, and sends the frequency component to the comparator 5.
【００１０】図２の処理フローにて、不連続信号を抽出
したときの周波数分析結果の一例を図３に示す。この図
は、Δｔ時間前に事故が発生し、これによる周波数成分
が不連続信号として検出されることを示している。FIG. 3 shows an example of a frequency analysis result when a discontinuous signal is extracted in the processing flow of FIG. This figure shows that an accident occurs before the time Δt, and that the resulting frequency component is detected as a discontinuous signal.
【００１１】また、図１のシステムを道路に設置したと
時の後続車への警告表示の概念図を図４に示す。事故車
９による衝突音等を車両事故通報装置８が検出し、交通
管制センタ１０へ通報する。その通報を受け、交通管制
センタ１０から警告表示器１１に対し前方にて事故が発
生したことを表示させる。後続車１２は、この表示を確
認することにより減速を開始し、２次災害を防止するこ
とができる。FIG. 4 is a conceptual diagram showing a warning display to a following vehicle when the system shown in FIG. 1 is installed on a road. The vehicle accident notification device 8 detects a collision sound or the like due to the accident vehicle 9 and notifies the traffic control center 10 of the detection. In response to the notification, the traffic control center 10 causes the warning indicator 11 to indicate that an accident has occurred ahead. The following vehicle 12 starts deceleration by confirming this display, and can prevent a secondary disaster.
【００１２】請求項２の実施例を図５に示す。マイクロ
フォン１により道路からの音を受信する。この音響信号
を増幅器２により増幅し、バンドパスフィルタ１２によ
り事故発生音と無関係な音響信号を除去する。さらに、
不連続信号抽出器１３によりインパルス的な信号成分を
抽出する。一方、標本信号記憶器１４にはあらかじめ事
故発生による特徴的な不連続時間波形を複数個記憶させ
ておき、前述の不連続信号抽出器１３の出力との相関を
相関器１５により行う。この結果事故発生を検出した場
合は、送信機７により交通管制センタ等への通報を自動
的に行う。FIG. 5 shows a second embodiment of the present invention. The sound from the road is received by the microphone 1. This acoustic signal is amplified by the amplifier 2 and the band-pass filter 12 removes an acoustic signal unrelated to the accident sound. further,
An impulse-like signal component is extracted by the discontinuous signal extractor 13. On the other hand, a plurality of characteristic discontinuous time waveforms due to the occurrence of an accident are stored in the sample signal storage 14 in advance, and the correlation with the output of the discontinuous signal extractor 13 is performed by the correlator 15. As a result, when the occurrence of an accident is detected, the transmitter 7 automatically notifies the traffic control center or the like.
【００１３】ここで、事故発生時の検出方法の概念を図
６に示す。事故の発生に伴う衝突音・タイヤのきしみ音
等の不連続信号に対し、衝突音等の相関波形による相関
処理を行うことにより衝突を検出する。FIG. 6 shows the concept of a method of detecting an accident. A collision is detected by performing a correlation process with a correlation waveform such as a collision sound on a discontinuous signal such as a collision sound and a squeaking sound of a tire due to the occurrence of an accident.
【００１４】[0014]
【発明の効果】本発明は、音響信号を使用することによ
り、昼夜・天候の影響を受けず、また視界の悪い道路で
も少ない車両事故通報システムの設置により、車両事故
を即座に通報することが可能となる。また、負傷者の救
護の迅速化及び後続車への警告による２次災害の防止が
可能となり、事故による災害を最小限に抑えることがで
きる。According to the present invention, by using an acoustic signal, a vehicle accident can be immediately reported by setting up a vehicle accident report system which is not affected by day and night and weather, and has a small number of roads even on roads with poor visibility. It becomes possible. In addition, it is possible to speed up the rescue of the injured person and prevent a secondary disaster by warning a following vehicle, thereby minimizing a disaster caused by an accident.
【図１】請求項１の実施例を示すブロック図の一例。FIG. 1 is an example of a block diagram showing an embodiment of claim 1.
【図２】請求項１における不連続信号抽出処理フローの
一例。FIG. 2 shows an example of a discontinuous signal extraction processing flow in claim 1.
【図３】請求項１における周波数分析結果の一例。FIG. 3 is an example of a frequency analysis result according to claim 1;
【図４】後続車への警告方法を示す概念図。FIG. 4 is a conceptual diagram showing a warning method for a following vehicle.
【図５】請求項２の実施例を示すブロック図の一例。FIG. 5 is an example of a block diagram showing an embodiment of claim 2;
【図６】請求項２における事故検出の概念図。FIG. 6 is a conceptual diagram of accident detection according to claim 2;
１：マイクロフォン ２：増幅器 ３：周波数分析器 ３０１：記憶器 ３０２：周波数分析信号処理器 ４：不連続信号抽出器 ４０１：記憶器 ４０２：記憶器 ４０３：記憶器 ４０４：周波数成分比較器 ４０５：周波数成分比較器 ４０６：不連続信号抽出器 ５：標本周波数パターン記憶器 ６：比較器 ７：送信機 ８：車両事故通報装置 ９：事故車 １０：交通監視センタ １１：警告表示器 １２：後続車 １３：バンドパスフィルタ １４：不連続信号抽出器 １５：標本信号記憶器 １６：相関器 1: microphone 2: amplifier 3: frequency analyzer 301: storage device 302: frequency analysis signal processor 4: discontinuous signal extractor 401: storage device 402: storage device 403: storage device 404: frequency component comparator 405: frequency Component comparator 406: discontinuous signal extractor 5: sample frequency pattern storage 6: comparator 7: transmitter 8: vehicle accident notification device 9: accident vehicle 10: traffic monitoring center 11: warning display 12: following vehicle 13 : Bandpass filter 14: discontinuous signal extractor 15: sample signal storage 16: correlator
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長山 暁司 神奈川県横浜市戸塚区戸塚町216番地株式 会社日立製作所情報通信事業部内 (72)発明者 神田 義信 神奈川県横浜市戸塚区戸塚町216番地株式 会社日立製作所情報通信事業部内 (72)発明者 船崎 好助 神奈川県横浜市戸塚区戸塚町216番地株式 会社日立製作所情報通信事業部内 (72)発明者 末吉 賢浩 神奈川県横浜市戸塚区戸塚町216番地株式 会社日立製作所情報通信事業部内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akashi Nagayama 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside the Hitachi, Ltd.Information and Communications Division (72) Inventor Yoshinobu Kanda 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi, Ltd.Information and Communication Division (72) Inventor Yoshisuke Funazaki 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture, Ltd.Information and Communication Division, Hitachi Ltd. (72) Takehiro Sueyoshi 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa Prefecture Address Co., Ltd.Information Communication Division, Hitachi, Ltd.
Claims (2)
るための通報システムにおいて、道路付近に設置した音
響信号を収集する手段と、その音響信号を分析し事故の
発生を判定する手段と、その判定結果が事故と判定した
時に交通管制センタ等へ通信する手段と、その情報を後
続車に知らせる手段を持ち、音響信号を周波数分析し衝
突音・爆発音・タイヤのきしみ音等の車両事故特有の不
連続信号を周波数スペクトルパターンから検出すること
により事故の発生を判定することを特徴とした車両事故
通報装置。1. A reporting system for automatically detecting a vehicle accident and reporting the accident, a means for collecting acoustic signals installed near a road, and a means for analyzing the acoustic signals to determine the occurrence of an accident. And means for communicating to the traffic control center when the result of the determination is an accident, and means for informing the following vehicle of the information.Frequency analysis is performed on the acoustic signal to analyze collision sound, explosion sound, tire squeaking sound, etc. A vehicle accident notification device characterized by detecting the occurrence of an accident by detecting a discontinuous signal specific to a vehicle accident from a frequency spectrum pattern.
るための通報システムにおいて、道路付近に設置した音
響信号を収集する手段と、その音響信号を分析し事故の
発生を判定する手段と、その判定結果が事故と判定した
時に交通管制センタ等へ通信する手段とその情報を後続
車に知らせる手段を持ち、音響信号を１つ以上のバンド
パスフィルタにより事故発生時に発生する音の周波数帯
域に制限した後に、衝突音・爆発音・タイヤのきしみ音
等の車両事故特有の不連続信号を抽出し、あらかじめ登
録しておいた事故発生時の複数の信号波形と相関を取る
ことにより事故による特徴音を検出し事故の発生を判定
することを特徴とした車両事故通報装置。2. A system for automatically detecting a vehicle accident and notifying the driver of the accident, comprising: means for collecting an acoustic signal installed near the road; and means for analyzing the acoustic signal to determine the occurrence of the accident. And means for communicating to a traffic control center or the like when the result of the determination is an accident, and means for informing the following vehicle of the information, and the sound signal generated by the one or more band-pass filters when the accident occurs. After limiting to a band, an accident signal is extracted by extracting discontinuous signals specific to vehicle accidents such as collision noise, explosion sound, and squeaking noise of tires, and correlating with multiple registered signal waveforms at the time of the accident. A vehicle accident notification device characterized by detecting a characteristic sound of the vehicle and determining occurrence of an accident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31742296A JPH10162277A (en) | 1996-11-28 | 1996-11-28 | Vehicle accident reporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31742296A JPH10162277A (en) | 1996-11-28 | 1996-11-28 | Vehicle accident reporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10162277A true JPH10162277A (en) | 1998-06-19 |
Family
ID=18088062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31742296A Pending JPH10162277A (en) | 1996-11-28 | 1996-11-28 | Vehicle accident reporting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10162277A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5990801A (en) * | 1996-11-13 | 1999-11-23 | Mitsubishi Electric Engineering Company, Limited | Accident sound detection circuit |
| US6087960A (en) * | 1998-06-24 | 2000-07-11 | Mitsubishi Electric Engineering Company, Limited | Accident sound detection circuit |
| EP1376510A2 (en) * | 2002-06-21 | 2004-01-02 | JOANNEUM RESEARCH Forschungsgesellschaft mbH | System and method for the automatic surveillance of a traffic route |
| WO2004100103A1 (en) * | 2003-05-07 | 2004-11-18 | Koninklijke Philips Electronics N.V. | Event detection system |
| US8219306B2 (en) * | 2005-12-08 | 2012-07-10 | Electronics And Telecommunications Research Institute | Apparatus and method for providing traffic jam information, and apparatus for receiving traffic jam information for automobile |
| CN103824428A (en) * | 2014-03-19 | 2014-05-28 | 仲恺农业工程学院 | Vehicle-mounted accident informing system |
-
1996
- 1996-11-28 JP JP31742296A patent/JPH10162277A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5990801A (en) * | 1996-11-13 | 1999-11-23 | Mitsubishi Electric Engineering Company, Limited | Accident sound detection circuit |
| US6087960A (en) * | 1998-06-24 | 2000-07-11 | Mitsubishi Electric Engineering Company, Limited | Accident sound detection circuit |
| EP1376510A2 (en) * | 2002-06-21 | 2004-01-02 | JOANNEUM RESEARCH Forschungsgesellschaft mbH | System and method for the automatic surveillance of a traffic route |
| EP1376510A3 (en) * | 2002-06-21 | 2004-01-14 | JOANNEUM RESEARCH Forschungsgesellschaft mbH | System and method for the automatic surveillance of a traffic route |
| AT500235A1 (en) * | 2002-06-21 | 2005-11-15 | Joanneum Res Forschungsgesells | SYSTEM AND METHOD FOR AUTOMATIC MONITORING OF A ROADWAY |
| AT500235B1 (en) * | 2002-06-21 | 2007-05-15 | Joanneum Res Forschungsgesells | SYSTEM AND METHOD FOR AUTOMATIC MONITORING OF A ROADWAY |
| WO2004100103A1 (en) * | 2003-05-07 | 2004-11-18 | Koninklijke Philips Electronics N.V. | Event detection system |
| US8219306B2 (en) * | 2005-12-08 | 2012-07-10 | Electronics And Telecommunications Research Institute | Apparatus and method for providing traffic jam information, and apparatus for receiving traffic jam information for automobile |
| CN103824428A (en) * | 2014-03-19 | 2014-05-28 | 仲恺农业工程学院 | Vehicle-mounted accident informing system |
| CN103824428B (en) * | 2014-03-19 | 2016-01-20 | 仲恺农业工程学院 | Vehicle-mounted accident notice system and motor-vehicle accident Notification Method |
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