JP4629922B2 - Traffic accident sound detection device - Google Patents
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- JP4629922B2 JP4629922B2 JP2001204634A JP2001204634A JP4629922B2 JP 4629922 B2 JP4629922 B2 JP 4629922B2 JP 2001204634 A JP2001204634 A JP 2001204634A JP 2001204634 A JP2001204634 A JP 2001204634A JP 4629922 B2 JP4629922 B2 JP 4629922B2
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Description
【０００１】
【発明の属する技術分野】
この発明は、交差点などにおける交通音から交通事故を効率良く検出する交通事故音検出装置に関する。
【０００２】
【従来の技術】
交差点では交通事故が多く発生するので、従来から事故が発生した時の状況を記録する交通事故の状況を記録する装置が考えられてきている。
【０００３】
図７に例えば特開平４−３３８９００号公報に開示された従来の交通事故状況記録装置の構成を示すブロック図を示す。
【０００４】
図７において１、４は交通信号機、１Ｂ、１Ｙ、１Ｒ、４Ｂ、４Ｙ、４Ｒは信号灯、２Ｂ、２Ｙ、２Ｒは信号線、３は信号灯点滅制御装置、５は信号灯記号発生装置、６は時刻文字発生部、７は加算部、８は撮像装置、９はエンドレス記録装置、１０は周囲音検出装置、１１は衝突音検出回路、１２は記録制御装置、１３は磁気記録制御装置、１３ａは映像出力端子、１３ｂは音声出力端子である。
【０００５】
また図８に、図７における交通事故音検出部分の構成を示すブロック図を示す。
【０００６】
図７において交通音を検出する部分は周囲音検出装置１０および衝突音検出回路１１である。すなわち図７において周囲音検出装置１０で信号が検出され、衝突音検出回路１１に送られる。衝突音検出回路１１では検出された信号が車両の衝突音か否かを判別し、衝突音と判別した時には衝突音検出信号が記録制御装置１２に送られる。
【０００７】
図７において検出された交通音が事故（衝突）音であるか否かの判断はそのレベルをあらかじめ定められた閾値と比較し、閾値以上になった場合に事故と判断している。また誤動作対策としては周囲音検出装置１０には指向性マイクロホンを使用すること、および信号の経路中に帯域除去フィルタを設けることが開示されている。
【０００８】
【発明が解決しようとする課題】
以上のように構成された従来のこの種の装置では、衝突音の判別法として固定された閾値とのレベル比較を行っている。この判別法はレベル比較法を用いているため、入力された信号から瞬時に検出信号を生成することが容易である。
【０００９】
しかしながら、一般の交通音では例えばブレーキ音、警笛音、暴走音など、事故音以外でもレベルの大きな音が多く存在し、固定された閾値とのレベル比較を行う方法だけでは事故音に加えてその他多くの交通音（例えばサイレンの音、トラックの荷台音等）も事故音として同時に判別されてしまうという問題があった。一方、閾値を高め、検出される交通音をより選択的に検出すると今度は本来の事故音が検出できないという問題があった。
【００１０】
また、判別法自体を複雑化すると判別に要する演算時間が増加し、判別に要する時間内で事故が発生するとその事故音が無視されてしまうというような問題もあった。
【００１１】
この発明は上記のような問題を解消するためになされたもので、事故音判別信号を瞬時に送出する事故音検出回路と、より精度の高い判別回路から信号を送出する事故音検出回路とを分離し、状況や目的に応じて両者を効率良く使い分けることができる交通事故音検出装置を提供すること、および記録された検出信号を後処理することによって判別に十分な時間をかけることのできる交通事故音検出装置を提供することを目的とする。
【００１２】
【課題を解決するための手段】
上記の目的に鑑み、この発明は、交通音を検出可能な位置に配置された交通音検出手段と、検出された交通音から事故音を検出する判別法の違いにより、相対的に高い選択性と、前記相対的に高い選択性に比べて検出される事故音の多い、前記高い選択性に対して相対的に低い選択性からなる異なる選択性を有する複数の事故音検出手段と、を有し、前記交通音検出手段に対し、相対的に低い選択性を有する事故音検出手段と高い選択性を有する事故音検出手段が並列に接続されていることを特徴とする交通事故音検出装置にある。
また、交通音を検出可能な位置に配置された交通音検出手段と、検出された交通音から事故音を検出する判別法の違いにより、相対的に高い選択性と、前記相対的に高い選択性に比べて検出される事故音の多い、前記高い選択性に対して相対的に低い選択性からなる異なる選択性を有する複数の事故音検出手段と、を有し、前記交通音検出手段に対し、相対的に低い選択性を有する第１の事故音検出手段と高い選択性を有する第２の事故音検出手段が並列に接続され、この第２の事故音検出手段にこれより高い選択性を有する第３の事故音検出手段が直列に接続され、第２の事故音検出手段の検出結果に基づいて第３の事故音検出手段が事故音検出を行うことを特徴とする交通事故音検出装置にある。
【００２２】
【発明の実施の形態】
以下、この発明の各実施の形態を図面を参照しながら説明する。
実施の形態１．
図１はこの発明の実施の形態１による交通事故音検出装置の機能構成ブロック図である。図１おいて１０−１は交通音検出手段、１１−１は第１の事故音検出手段、１１−２は事故音検出手段１１−１と異なる設定パラメータを有する同一判別法を使用した第２の事故音検出手段、あるいは判別法の異なる第２の事故音検出手段、１２−１、１２−２は第１のおよび第２の記録再生手段、１５−１、１５−２は事故音検出手段１１−１、１１−２からの信号を外部に伝送するための信号伝送手段を示す。なお、図１において図７に対応する部分には対応する符号を付した。
【００２３】
次に動作について説明する。図１において交通音検出手段１０−１で信号が検出された後、その信号は２分岐され、一方は事故音検出手段１１−１へ、他方は事故音検出手段１１−２に送られる。事故音検出手段１１−１は、実時間（リアルタイム）で事故音を検出する比較的単純な判別法を使用した事故音検出手段であり、事故音を検出し、その信号を記録再生手段１２−１および外部への信号伝送手段１５−１に伝送する。記録再生手段１２−１は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。
【００２４】
他方、事故音検出手段１１−２は、事故音検出手段１１−１とは異なる設定あるいは判別法を使用しているため、事故音検出手段１１−１とは異なる事故音をリアルタイムで検出し、その信号を記録再生手段１２−２および外部への信号伝送手段１５−２に伝送する。記録再生手段１２−２では送られてきた事故音が記録され、必要に応じて記録された内容が再生される。
【００２５】
図１において記録再生手段１２−１、１２−２で記録される事故音には一般には異なる事故音が含まれる。記録される事故音の数は事故音検出手段の判別パラメータによって異なるが、選択性すなわち選択基準を高めれば記録される事故音の数は少なくなり、選択性を低めれば事故音の数は増加する。そこで、一方の事故音検出手段の選択性を低く、他方は高く設定すれば、記録再生手段１２−１、１２−２に記録される事故音の記録数は、一方は多く、一方は少なくなる。したがって、記録後に事故音を再生して評価することを考えると、まず記録数の少ない記録再生手段の記録情報を評価し、後で記録数の多い記録再生手段の記録情報を時間をかけて評価すれば、状況や目的に応じた評価が可能となる。
【００２６】
なお、図１では事故音検出手段１１−１で検出された信号を記録再生手段１２−１で記録し、信号伝送手段１５−１で外部に伝送を行っているが、記録再生手段１２−１、信号伝送手段１５−１は必ずしも両方使用する必要はなく、どちらか一方のみを選択して使用しても良いことは勿論である。同様に、記録再生手段１２−２、信号伝送手段１５−２についてもどちらか一方のみを選択しても良い。
【００２７】
このように本実施の形態における交通事故音検出装置では、記録された事故音を状況や目的に応じて効率良く使い分けることができる。
【００２８】
実施の形態２．
図２はこの発明の実施の形態２による交通事故音検出装置の機能構成ブロック図である。図２において図１のものと同一もしくは相当部分は同一符号で示し説明を省略する。
【００２９】
次に動作について説明する。図２において交通音検出手段１０−１で検出された信号は事故音検出手段１１−１に送られる。事故音検出手段１１−１は、リアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段である。次に検出された事故音は、記録再生手段１２−１、事故音検出手段１１−２、および信号伝送手段１５−１に送られる。記録再生手段１２−１は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−１は送られてきた事故音を外部に伝送する。
【００３０】
事故音検出手段１１−２は事故音検出手段１１−１と同様にリアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段であるが、事故音検出手段１１−１とは異なる判別パラメータ、あるいは事故音の判別法を使用し選択性を高めてある。そのため、事故音検出手段１１−１から送られた事故音をさらに選択的に検出し、その信号を記録再生手段１２−２および信号伝送手段１５−２に伝送する。記録再生手段１２−２は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。また信号伝送手段１５−２は送られてきた事故音を外部に伝送する。
【００３１】
図２において記録再生手段１２−１、１２−２で記録される事故音には一般に異なる事故音が含まれる。事故音検出手段１１−２の選択性は事故音検出手段１１−１より高く設定してあるので、記録される事故音の数は記録再生手段１２−２の方が一般的に少ない。したがって記録後に事故音を再生して評価することを考えると、まず記録数の少ない記録再生手段１２−２の記録情報を評価し、後で記録数の多い記録再生手段１２−１の記録情報を時間をかけて評価すれば、状況や目的に応じた評価が可能となる。
【００３２】
なお、図２では事故音検出手段１１−１で検出された信号を記録再生手段１２−１で記録し、信号伝送手段１５−１で外部に伝送を行っているが、記録再生手段１２−１、信号伝送手段１５−１は必ずしも両方使用する必要はなく、どちらか一方のみを選択して使用しても良いことは勿論である。同様に、記録再生手段１２−２、信号伝送手段１５−２についてもどちらか一方のみを選択しても良い。
【００３３】
このように本実施の形態における交通事故音検出装置においても、記録された事故音を状況や目的に応じて効率良く使い分けることができる。
【００３４】
実施の形態３．
図３はこの発明の実施の形態３による交通事故音検出装置の機能構成ブロック図である。図３において上記実施の形態と同一もしくは相当部分は同一符号で示し説明を省略する。図３おいて１１−３は第３の事故音検出手段、１２−３は第３の記録再生手段、１５−３は第３の信号伝送手段である。
【００３５】
次に動作について説明する。図３において交通音検出手段１０−１で信号が検出された後、信号は２分岐され、一方は事故音検出手段１１−１に、他方は事故音検出手段１１−２に送られる。事故音検出手段１１−１は、リアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段で、次に検出された事故音は記録再生手段１２−１および信号伝送手段に１５−１に送られる。記録再生手段１２−１は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−１は送られてきた事故音を外部に伝送する。
【００３６】
事故音検出手段１１−２は事故音検出手段１１−１と同様、リアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段であるが、事故音検出手段１１−１とは異なる判別パラメータ、あるいは判別法を使用し、選択性が高められている。そのため送られた事故音をさらに選択的に検出することができる。次にこの信号は記録再生手段１２−２、信号伝送手段１５−２、事故音検出手段１１−３に伝送される。
【００３７】
記録再生手段１２−２は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−２は送られてきた事故音を外部に伝送する。事故音検出手段１１−３は事故音検出手段１１−１、１１−２と同様、リアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段であるが、事故音検出手段１１−１、１１−２とは異なる判別パラメータ、あるいは判別法を使用し選択性をより高めてある。そのため、事故音検出手段１１−２から送られた事故音をさらに選択的に検出し、その信号を記録再生手段１２−３、および信号伝送手段１５−３に伝送する。記録再生手段１２−３は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−３は送られてきた事故音を外部に伝送する。
【００３８】
図３において記録再生手段１２−１、１２−２、１２−３に記録される事故音には一般に異なる事故音が含まれる。選択性は事故音検出手段１１−１、１１−２、１１−３の順に高く設定してあるので、記録される事故音の数は記録再生手段１２−１が一番多く、１２−２、１２−３の順に少なくなる。したがって記録後に事故音を再生して評価することを考えると、まず記録数の一番少ない記録再生手段１２−３で検出された記録情報を評価し、次に記録再生手段１２−２、１２−１の順に記録情報を時間をかけて評価すれば、状況や目的に応じた事故音の評価が可能となる。
【００３９】
なお、図３では事故音検出手段１１−１で検出された信号を記録再生手段１２−１で記録し、信号伝送手段１５−１で外部に伝送を行っているが、記録再生手段１２−１、信号伝送手段１５−１は必ずしも両方使用する必要はなく、どちらか一方のみを選択して使用しても良いことは勿論である。同様に、記録再生手段１２−２、信号伝送手段１５−２についてもどちらか一方のみを選択しても良いし、記録再生手段１２−３、信号伝送手段１５−３についてもどちらか一方のみを選択しても良いことは勿論である。
【００４０】
このように本実施の形態における交通事故音検出装置においても、記録された事故音を状況や目的に応じて効率良く使い分けることができる。
【００４１】
実施の形態４．
図４はこの発明の実施の形態４による交通事故音検出装置の機能構成ブロック図である。図４において上記実施の形態と同一もしくは相当部分は同一符号で示し説明を省略する。
【００４２】
次に動作について説明する。図４において交通音検出手段１０−１で検出された信号は事故音検出手段１１−１に送られる。事故音検出手段１１−１は、リアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段である。次に検出された事故音は、記録再生手段１２−１、信号伝送手段１５−１、事故音検出手段１１−２、および事故音検出手段１１−３に送られる。
【００４３】
記録再生手段１２−１は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−１は送られてきた事故音を外部に伝送する。事故音検出手段１１−２は事故音検出手段１１−１と同様にリアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段であるが、事故音検出手段１１−１とは異なる判別パラメータ、あるいは事故音の判別法を使用し選択性を高めてある。そのため、事故音検出手段１１−１から送られた事故音を選択的に検出し、その信号を記録再生手段１２−２および信号伝送手段１５−２に伝送する。
【００４４】
事故音検出手段１１−３は事故音検出手段１１−１、１１−２と同様にリアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段であるが、事故音検出手段１１−１、１１−２とは異なる判別パラメータ、あるいは事故音の判別法を使用し選択性をさらに高めてある。そのため、事故音検出手段１１−１から送られた事故音をより選択的に検出し、その信号を記録再生手段１２−３および信号伝送手段１５−３に伝送する。
【００４５】
記録再生手段１２−２は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−２は送られてきた事故音を外部に伝送する。同様に、記録再生手段１２−３は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−３は送られてきた事故音を外部に伝送する。
【００４６】
図４において記録再生手段１２−１、１２−２、１２−３に記録される事故音には一般に異なる事故音が含まれる。選択性は事故音検出手段１１−１、１１−２、１１−３の順に高く設定してあるので、記録される事故音の数は記録再生手段１２−１が一番多く、１２−２、１２−３の順に少なくなる。したがって記録後に事故音を再生して評価することを考えると、まず記録数の一番少ない記録再生手段１２−３で検出された記録情報を評価し、次に記録再生手段１２−２、１２−１の順に記録情報を時間をかけて評価すれば、状況や目的に応じた事故音の評価が可能となる。
【００４７】
なお、図４では事故音検出手段１１−１で検出された信号を記録再生手段１２−１で記録し、信号伝送手段１５−１で外部に伝送を行っているが、記録再生手段１２−１、信号伝送手段１５−１は必ずしも両方使用する必要はなく、どちらか一方のみを選択して使用しても良いことは勿論である。同様に、記録再生手段１２−２、信号伝送手段１５−２についてもどちらか一方のみを選択しても良いし、記録再生手段１２−３、信号伝送手段１５−３についてもどちらか一方のみを選択しても良いことは勿論である。
【００４８】
このように本実施の形態における交通事故音検出装置においても、記録された事故音を状況や目的に応じて効率良く使い分けることができる。
【００４９】
実施の形態５．
図５はこの発明の実施の形態５による交通事故音検出装置の機能構成ブロック図である。図５において上記実施の形態と同一もしくは相当部分は同一符号で示し説明を省略する。図５において、１４は記録再生手段１２−１を制御するための再生制御手段である。
【００５０】
次に動作について説明する。図５において交通音検出手段１０−１で信号が検出され、その信号は事故音検出手段１１−１に送られる。事故音検出手段１１−１は、リアルタイムで事故音を検出する比較的単純な判別法を使用した事故音検出手段である。さらに事故音検出手段１１−１で検出された事故音は、記録再生手段１２−１および信号伝送手段１５−１に送られる。記録再生手段１２−１は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−１は送られてきた事故音を外部に伝送する。
【００５１】
記録再生手段１２−１に記録されている事故音は、記録完了後にその再生機能を使用して個々の事故音が再生され、第２の事故音検出手段１１−２に送られる。事故音検出手段１１−２は一般に複雑な判別法を用い、十分な時間をかけて精度良く事故音を検出するための検出手段で、事故音検出が完了すると完了信号を再生制御手段１４に伝送する。再生制御手段１４では完了信号を受け取ると再生制御手段に作用して記録再生手段１２−１に記録されている次の事故音を事故音検出手段１１−２に伝送させる。
【００５２】
この結果、精度良く検出された信号が第２の記録再生手段１２−２および信号伝送手段１５−２に送られる。記録再生手段１２−２は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−２は送られてきた事故音を外部に伝送する。
【００５３】
図５において記録再生手段１２−１、１２−２に記録される事故音には一般に異なる事故音が含まれる。事故音検出手段１１−１に記録される事故音の数は多数となるが、事故音検出手段１１−２では判別精度が高められており、記録されている事故音の数は少なくなる。したがって記録後に事故音を再生して評価することを考えると、まず記録数の少ない記録再生手段１２−２で検出された記録情報を評価し、次に記録再生手段１２−１の記録情報を時間をかけて評価すれば、状況や目的に応じた事故音の評価が可能となる。
【００５４】
なお、図５では事故音検出手段１１−１で検出された信号を記録再生手段１２−１で記録し、信号伝送手段１５−１で外部に伝送を行っているが、記録再生手段１２−１、信号伝送手段１５−１は必ずしも両方使用する必要はなく、どちらか一方のみを選択して使用しても良いことは勿論である。同様に、記録再生手段１２−２、信号伝送手段１５−２についてもどちらか一方のみを選択しても良い。
【００５５】
このように本実施の形態における交通事故音検出装置においても、記録された事故音を状況や目的に応じて効率良く使い分けることができ、さらに記録された検出信号を個々に再生し、十分な時間をかけて事故音の判定を行うことができる。
【００５６】
実施の形態６．
図６はこの発明の実施の形態３による交通事故音検出装置の機能構成ブロック図である。図６において上記実施の形態と同一もしくは相当部分は同一符号で示し説明を省略する。図６おいて１１−０は事故音検出手段、１２−０は記録再生手段、１５−０は信号伝送手段、２０は再生手段である。
【００５７】
次に動作について説明する。記録された事故音は再生手段２０により個々の事故音が再生され、事故音検出手段１１−０に送られる。事故音検出手段１１−０は一般に複雑な判別法を用い、十分な時間をかけて精度良く事故音を検出するための検出手段で、事故音検出が完了すると完了信号を再生制御手段１４に伝送する。再生制御手段１４では完了信号を受け取ると再生手段２０に作用し、記録されている次の事故音を事故音検出手段１１−０に伝送させる。この結果、精度良く検出された信号が記録再生手段１２−０および信号伝送手段１５−０に送られる。記録再生手段１２−０は送られてきた事故音を記録し、必要に応じて記録された事故音を再生する。信号伝送手段１５−０は送られてきた事故音を外部に伝送する。
【００５８】
図６において記録再生手段１２−０には事故音のみが精度良く検出されているため、その記録数は比較的少数である。したがって記録後に事故音を再生して評価することを考えると効率的に事故音を評価することが可能となる。
【００５９】
なお、図６では事故音検出手段１１−０で検出された信号を記録再生手段１２−０で記録し、信号伝送手段１５−０で外部に伝送を行っているが、記録再生手段１２−０、信号伝送手段１５−０は必ずしも両方使用する必要はなく、どちらか一方のみを選択して使用しても良いことは勿論である。
【００６０】
このように本実施の形態における交通事故音検出装置においては、記録された検出信号を後処理することによって判別に十分な時間をかけることができる。
【００６１】
【発明の効果】
以上のようにこの発明によれば、交通音を検出可能な位置に配置された交通音検出手段と、検出された交通音から事故音を検出する判別法の違いにより、相対的に高い選択性と、前記相対的に高い選択性に比べて検出される事故音の多い、前記高い選択性に対して相対的に低い選択性からなる異なる選択性を有する複数の事故音検出手段と、を有し、前記交通音検出手段に対し、相対的に低い選択性を有する事故音検出手段と高い選択性を有する事故音検出手段が並列に接続されていることを特徴とする交通事故音検出装置、また、交通音を検出可能な位置に配置された交通音検出手段と、検出された交通音から事故音を検出する判別法の違いにより、相対的に高い選択性と、前記相対的に高い選択性に比べて検出される事故音の多い、前記高い選択性に対して相対的に低い選択性からなる異なる選択性を有する複数の事故音検出手段と、を有し、前記交通音検出手段に対し、相対的に低い選択性を有する第１の事故音検出手段と高い選択性を有する第２の事故音検出手段が並列に接続され、この第２の事故音検出手段にこれより高い選択性を有する第３の事故音検出手段が直列に接続され、第２の事故音検出手段の検出結果に基づいて第３の事故音検出手段が事故音検出を行うことを特徴とする交通事故音検出装置としたので、検出された事故音を状況や目的に応じて効率よく使い分けることができる。
【図面の簡単な説明】
【図１】 この発明の実施の形態１による交通事故音検出装置の機能構成ブロック図である。
【図２】 この発明の実施の形態２による交通事故音検出装置の機能構成ブロック図である。
【図３】 この発明の実施の形態３による交通事故音検出装置の機能構成ブロック図である。
【図４】 この発明の実施の形態４による交通事故音検出装置の機能構成ブロック図である。
【図５】 この発明の実施の形態５による交通事故音検出装置の機能構成ブロック図である。
【図６】 この発明の実施の形態６による交通事故音検出装置の機能構成ブロック図である。
【図７】 従来の交通事故状況記録装置の構成を示すブロック図である。
【図８】 図７における交通事故音検出部分の構成を示すブロック図である。
【符号の説明】
１０−１ 交通音検出手段、１１−０〜１１−３ 事故音検出手段、１２−０〜１２−３ 記録再生手段、１４ 再生制御手段、１５−０〜１５−３ 信号伝送手段、２０ 再生手段。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a traffic accident sound detection apparatus for efficiently detecting a traffic accident from traffic sound at an intersection or the like.
[0002]
[Prior art]
Since many traffic accidents occur at intersections, a device for recording the situation of a traffic accident that records the situation at the time of the accident has been considered.
[0003]
FIG. 7 is a block diagram showing a configuration of a conventional traffic accident situation recording apparatus disclosed in, for example, Japanese Patent Laid-Open No. 4-338900.
[0004]
7, 1 and 4 are traffic lights, 1B, 1Y, 1R, 4B, 4Y, 4R are signal lights, 2B, 2Y, 2R are signal lines, 3 is a signal light blinking control device, 5 is a signal light symbol generator, and 6 is time. Character generation unit, 7 addition unit, 8 imaging device, 9 endless recording device, 10 ambient sound detection device, 11 collision sound detection circuit, 12 recording control device, 13 magnetic recording control device, 13a video An
[0005]
FIG. 8 is a block diagram showing the configuration of the traffic accident sound detection portion in FIG.
[0006]
In FIG. 7, traffic sound is detected by the ambient
[0007]
The determination as to whether or not the traffic sound detected in FIG. 7 is an accident (collision) sound is made by comparing the level with a predetermined threshold value and determining that it is an accident if the level exceeds the threshold value. As countermeasures against malfunctions, it is disclosed that the ambient
[0008]
[Problems to be solved by the invention]
In this type of conventional apparatus configured as described above, a level comparison with a fixed threshold value is performed as a collision sound discrimination method. Since this discrimination method uses a level comparison method, it is easy to instantaneously generate a detection signal from the input signal.
[0009]
However, in general traffic sounds, for example, there are many loud sounds other than accident sounds such as brake sounds, whistle sounds, and runaway sounds. There has been a problem that many traffic sounds (for example, siren sounds, truck bed sounds, etc.) are simultaneously identified as accident sounds. On the other hand, if the threshold is increased and the detected traffic sound is detected more selectively, there is a problem that the original accident sound cannot be detected.
[0010]
In addition, when the discrimination method itself is complicated, there is a problem that the calculation time required for discrimination increases, and if an accident occurs within the time required for discrimination, the accident sound is ignored.
[0011]
The present invention has been made to solve the above-described problems. An accident sound detection circuit that instantaneously transmits an accident sound determination signal and an accident sound detection circuit that transmits a signal from a more accurate determination circuit are provided. Providing a traffic accident sound detection device that can be separated and used efficiently according to the situation and purpose, and traffic that allows sufficient time for discrimination by post-processing the recorded detection signal An object is to provide an accident sound detection device.
[0012]
[Means for Solving the Problems]
In view of the above object, the present invention has a relatively high selectivity due to the difference between the traffic sound detection means arranged at a position where the traffic sound can be detected and the discrimination method for detecting the accident sound from the detected traffic sound . And a plurality of accident sound detection means having a different selectivity comprising a higher number of accident sounds detected than the relatively high selectivity and a relatively low selectivity with respect to the high selectivity. A traffic accident sound detecting device, wherein an accident sound detecting means having a relatively low selectivity and an accident sound detecting means having a high selectivity are connected in parallel to the traffic sound detecting means. is there.
In addition, due to the difference between the traffic sound detection means arranged at a position where traffic sound can be detected and the discrimination method for detecting accident sound from the detected traffic sound, relatively high selectivity and the relatively high selection A plurality of accident sound detection means having a different selectivity consisting of a relatively low selectivity with respect to the high selectivity, wherein there are many accident sounds detected compared to the nature, and the traffic sound detection means On the other hand, a first accident sound detection means having a relatively low selectivity and a second accident sound detection means having a high selectivity are connected in parallel, and the second accident sound detection means has a higher selectivity than this. A traffic accident sound detection characterized in that a third accident sound detection means having a first and a second accident sound detection means is connected in series, and the third accident sound detection means detects an accident sound based on a detection result of the second accident sound detection means. In the device.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a functional block diagram of a traffic accident sound detection apparatus according to Embodiment 1 of the present invention. In FIG. 1, 10-1 is a traffic sound detecting means, 11-1 is a first accident sound detecting means, 11-2 is a second using the same discrimination method having different setting parameters from the accident sound detecting means 11-1. Accident sound detecting means, or second accident sound detecting means having a different discrimination method, 12-1 and 12-2 are first and second recording / reproducing means, and 15-1 and 15-2 are accident sound detecting means. Signal transmission means for transmitting signals from 11-1 and 11-2 to the outside is shown. In FIG. 1, the parts corresponding to those in FIG.
[0023]
Next, the operation will be described. In FIG. 1, after the signal is detected by the traffic sound detecting means 10-1, the signal is branched into two, one being sent to the accident sound detecting means 11-1 and the other being sent to the accident sound detecting means 11-2. The accident sound detection means 11-1 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time (real time). The accident sound detection means 11-1 detects the accident sound and records the signal as a recording / reproducing means 12- 1 and the external signal transmission means 15-1. The recording / reproducing means 12-1 records the transmitted accident sound, and reproduces the recorded accident sound as necessary.
[0024]
On the other hand, since the accident sound detection means 11-2 uses a setting or discrimination method different from that of the accident sound detection means 11-1, it detects an accident sound different from the accident sound detection means 11-1 in real time, The signal is transmitted to the recording / reproducing means 12-2 and the signal transmitting means 15-2 to the outside. In the recording / reproducing means 12-2, the transmitted accident sound is recorded, and the recorded contents are reproduced as necessary.
[0025]
In FIG. 1, the accident sounds recorded by the recording / reproducing means 12-1 and 12-2 generally include different accident sounds. The number of accident sounds that are recorded varies depending on the discrimination parameter of the accident sound detection means, but the number of accident sounds that are recorded decreases if the selectivity, ie, the selection criteria, is increased, and the number of accident sounds increases if the selectivity is decreased. To do. Therefore, if the selectivity of one accident sound detecting means is set low and the other is set high, the number of accident sounds recorded in the recording / reproducing means 12-1 and 12-2 is one, and one is small. . Therefore, considering the evaluation by reproducing the accident sound after recording, first evaluate the recording information of the recording / reproducing means with a small number of recordings, and then evaluate the recording information of the recording / reproducing means with a large number of recordings over time. Then, evaluation according to the situation and purpose becomes possible.
[0026]
In FIG. 1, the signal detected by the accident sound detecting means 11-1 is recorded by the recording / reproducing means 12-1 and transmitted to the outside by the signal transmitting means 15-1, but the recording / reproducing means 12-1 Of course, it is not always necessary to use both of the signal transmission means 15-1 and only one of them may be selected and used. Similarly, only one of the recording / reproducing unit 12-2 and the signal transmission unit 15-2 may be selected.
[0027]
As described above, in the traffic accident sound detection apparatus according to the present embodiment, the recorded accident sound can be efficiently used according to the situation and purpose.
[0028]
Embodiment 2. FIG.
FIG. 2 is a functional block diagram of a traffic accident sound detection apparatus according to Embodiment 2 of the present invention. In FIG. 2, the same or corresponding parts as those in FIG.
[0029]
Next, the operation will be described. In FIG. 2, the signal detected by the traffic sound detecting means 10-1 is sent to the accident sound detecting means 11-1. The accident sound detection means 11-1 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time. Next, the detected accident sound is sent to the recording / reproducing means 12-1, the accident sound detecting means 11-2, and the signal transmission means 15-1. The recording / reproducing means 12-1 records the transmitted accident sound, and reproduces the recorded accident sound as necessary. The signal transmission means 15-1 transmits the accident sound sent to the outside.
[0030]
The accident sound detection means 11-2 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time in the same manner as the accident sound detection means 11-1, but the accident sound detection means 11-1 Uses different discrimination parameters or accident sound discrimination methods to enhance the selectivity. Therefore, the accident sound sent from the accident sound detection means 11-1 is further selectively detected, and the signal is transmitted to the recording / reproducing means 12-2 and the signal transmission means 15-2. The recording / reproducing means 12-2 records the transmitted accident sound and reproduces the recorded accident sound as necessary. The signal transmission means 15-2 transmits the accident sound sent to the outside.
[0031]
In FIG. 2, the accident sounds recorded by the recording / reproducing means 12-1 and 12-2 generally include different accident sounds. Since the selectivity of the accident sound detecting means 11-2 is set higher than that of the accident sound detecting means 11-1, the number of recorded accident sounds is generally smaller in the recording / reproducing means 12-2. Therefore, considering that the accident sound is reproduced and evaluated after recording, the recording information of the recording / reproducing means 12-2 having a small number of recordings is evaluated first, and the recording information of the recording / reproducing means 12-1 having a large number of recordings is later evaluated. If evaluation is made over time, evaluation according to the situation and purpose becomes possible.
[0032]
In FIG. 2, the signal detected by the accident sound detecting means 11-1 is recorded by the recording / reproducing means 12-1, and transmitted to the outside by the signal transmitting means 15-1, but the recording / reproducing means 12-1 Of course, it is not always necessary to use both of the signal transmission means 15-1 and only one of them may be selected and used. Similarly, only one of the recording / reproducing unit 12-2 and the signal transmission unit 15-2 may be selected.
[0033]
As described above, also in the traffic accident sound detection apparatus according to the present embodiment, the recorded accident sound can be efficiently used depending on the situation and purpose.
[0034]
Embodiment 3 FIG.
FIG. 3 is a functional block diagram of a traffic accident sound detection apparatus according to Embodiment 3 of the present invention. In FIG. 3, the same or corresponding parts as those of the above embodiment are denoted by the same reference numerals and the description thereof is omitted. In FIG. 3, 11-3 is a third accident sound detecting means, 12-3 is a third recording / reproducing means, and 15-3 is a third signal transmitting means.
[0035]
Next, the operation will be described. In FIG. 3, after the traffic sound detecting means 10-1 detects the signal, the signal is branched into two, one being sent to the accident sound detecting means 11-1 and the other being sent to the accident sound detecting means 11-2. The accident sound detection means 11-1 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time. The detected accident sound is then sent to the recording / reproducing means 12-1 and the signal transmission means. Sent to 15-1. The recording / reproducing means 12-1 records the transmitted accident sound, and reproduces the recorded accident sound as necessary. The signal transmission means 15-1 transmits the accident sound sent to the outside.
[0036]
Like the accident sound detection means 11-1, the accident sound detection means 11-2 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time. Uses different discriminating parameters or discriminating methods to enhance the selectivity. Therefore, the transmitted accident sound can be further selectively detected. Next, this signal is transmitted to the recording / reproducing means 12-2, the signal transmitting means 15-2, and the accident sound detecting means 11-3.
[0037]
The recording / reproducing means 12-2 records the transmitted accident sound and reproduces the recorded accident sound as necessary. The signal transmission means 15-2 transmits the accident sound sent to the outside. The accident sound detection means 11-3 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time, like the accident sound detection means 11-1 and 11-2. The discrimination parameters or discrimination methods different from those of 11-1 and 11-2 are used to further enhance the selectivity. Therefore, the accident sound sent from the accident sound detection means 11-2 is further selectively detected, and the signal is transmitted to the recording / reproducing means 12-3 and the signal transmission means 15-3. The recording / reproducing means 12-3 records the transmitted accident sound, and reproduces the recorded accident sound as necessary. The signal transmission means 15-3 transmits the accident sound sent to the outside.
[0038]
In FIG. 3, the accident sounds recorded in the recording / reproducing means 12-1, 12-2, 12-3 generally include different accident sounds. Since the selectivity is set higher in the order of the accident sound detection means 11-1, 11-2, 11-3, the number of recorded accident sounds is the largest in the recording / reproducing means 12-1, 12-2, Decreases in the order of 12-3. Therefore, considering that the accident sound is reproduced and evaluated after recording, firstly, the recording information detected by the recording / reproducing means 12-3 having the smallest number of recordings is evaluated, and then the recording / reproducing means 12-2, 12- If the recorded information is evaluated over time in the order of 1, it is possible to evaluate the accident sound according to the situation and purpose.
[0039]
In FIG. 3, the signal detected by the accident sound detecting means 11-1 is recorded by the recording / reproducing means 12-1 and transmitted to the outside by the signal transmitting means 15-1, but the recording / reproducing means 12-1 Of course, it is not always necessary to use both of the signal transmission means 15-1 and only one of them may be selected and used. Similarly, either one of the recording / reproducing means 12-2 and the signal transmitting means 15-2 may be selected, or only one of the recording / reproducing means 12-3 and the signal transmitting means 15-3 may be selected. Of course, it may be selected.
[0040]
As described above, also in the traffic accident sound detection apparatus according to the present embodiment, the recorded accident sound can be efficiently used depending on the situation and purpose.
[0041]
4 is a functional block diagram of a traffic accident sound detection apparatus according to
[0042]
Next, the operation will be described. In FIG. 4, the signal detected by the traffic sound detecting means 10-1 is sent to the accident sound detecting means 11-1. The accident sound detection means 11-1 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time. Next, the detected accident sound is sent to the recording / reproducing means 12-1, the signal transmission means 15-1, the accident sound detection means 11-2, and the accident sound detection means 11-3.
[0043]
The recording / reproducing means 12-1 records the transmitted accident sound, and reproduces the recorded accident sound as necessary. The signal transmission means 15-1 transmits the accident sound sent to the outside. The accident sound detection means 11-2 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time in the same manner as the accident sound detection means 11-1, but the accident sound detection means 11-1 Uses different discrimination parameters or accident sound discrimination methods to enhance the selectivity. Therefore, the accident sound sent from the accident sound detection means 11-1 is selectively detected, and the signal is transmitted to the recording / reproducing means 12-2 and the signal transmission means 15-2.
[0044]
The accident sound detection means 11-3 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time in the same way as the accident sound detection means 11-1 and 11-2. Selectivity is further enhanced by using a discrimination parameter different from 11-1 and 11-2, or an accident sound discrimination method. Therefore, the accident sound sent from the accident sound detection means 11-1 is more selectively detected, and the signal is transmitted to the recording / reproducing means 12-3 and the signal transmission means 15-3.
[0045]
The recording / reproducing means 12-2 records the transmitted accident sound and reproduces the recorded accident sound as necessary. The signal transmission means 15-2 transmits the accident sound sent to the outside. Similarly, the recording / reproducing means 12-3 records the transmitted accident sound and reproduces the recorded accident sound as necessary. The signal transmission means 15-3 transmits the accident sound sent to the outside.
[0046]
In FIG. 4, the accident sounds recorded in the recording / reproducing means 12-1, 12-2, 12-3 generally include different accident sounds. Since the selectivity is set higher in the order of the accident sound detection means 11-1, 11-2, 11-3, the number of recorded accident sounds is the largest in the recording / reproducing means 12-1, 12-2, Decreases in the order of 12-3. Therefore, considering that the accident sound is reproduced and evaluated after recording, firstly, the recording information detected by the recording / reproducing means 12-3 having the smallest number of recordings is evaluated, and then the recording / reproducing means 12-2, 12- If the recorded information is evaluated over time in the order of 1, it is possible to evaluate the accident sound according to the situation and purpose.
[0047]
In FIG. 4, the signal detected by the accident sound detecting means 11-1 is recorded by the recording / reproducing means 12-1 and transmitted to the outside by the signal transmitting means 15-1, but the recording / reproducing means 12-1 Of course, it is not always necessary to use both of the signal transmission means 15-1 and only one of them may be selected and used. Similarly, either one of the recording / reproducing means 12-2 and the signal transmitting means 15-2 may be selected, or only one of the recording / reproducing means 12-3 and the signal transmitting means 15-3 may be selected. Of course, it may be selected.
[0048]
As described above, also in the traffic accident sound detection apparatus according to the present embodiment, the recorded accident sound can be efficiently used depending on the situation and purpose.
[0049]
Embodiment 5. FIG.
FIG. 5 is a functional block diagram of a traffic accident sound detection apparatus according to Embodiment 5 of the present invention. In FIG. 5, the same or corresponding parts as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted. In FIG. 5,
[0050]
Next, the operation will be described. In FIG. 5, the traffic sound detecting means 10-1 detects a signal, and the signal is sent to the accident sound detecting means 11-1. The accident sound detection means 11-1 is an accident sound detection means using a relatively simple discrimination method for detecting an accident sound in real time. Further, the accident sound detected by the accident sound detection means 11-1 is sent to the recording / reproducing means 12-1 and the signal transmission means 15-1. The recording / reproducing means 12-1 records the transmitted accident sound, and reproduces the recorded accident sound as necessary. The signal transmission means 15-1 transmits the accident sound sent to the outside.
[0051]
The accident sound recorded in the recording / reproducing means 12-1 is reproduced using the reproduction function after the recording is completed, and sent to the second accident sound detecting means 11-2. The accident sound detection means 11-2 is a detection means for detecting an accident sound with sufficient time by using a complicated discrimination method in general. When the accident sound detection is completed, a completion signal is transmitted to the reproduction control means 14. To do. Upon receipt of the completion signal, the reproduction control means 14 acts on the reproduction control means to transmit the next accident sound recorded in the recording / reproduction means 12-1 to the accident sound detection means 11-2.
[0052]
As a result, the signal detected with high accuracy is sent to the second recording / reproducing means 12-2 and the signal transmitting means 15-2 . The recording / reproducing means 12-2 records the transmitted accident sound and reproduces the recorded accident sound as necessary. The signal transmission means 15-2 transmits the accident sound sent to the outside.
[0053]
In FIG. 5, the accident sounds recorded in the recording / reproducing means 12-1 and 12-2 generally include different accident sounds. Although the number of accident sounds recorded in the accident sound detection means 11-1 is large, the accident sound detection means 11-2 has improved discrimination accuracy, and the number of recorded accident sounds is reduced. Therefore, considering that the accident sound is reproduced and evaluated after recording, firstly, the recording information detected by the recording / reproducing means 12-2 having a small number of recordings is evaluated, and then the recording information of the recording / reproducing means 12-1 is timed. If it evaluates over time, it becomes possible to evaluate the accident sound according to the situation and purpose.
[0054]
In FIG. 5, the signal detected by the accident sound detecting means 11-1 is recorded by the recording / reproducing means 12-1 and transmitted to the outside by the signal transmitting means 15-1, but the recording / reproducing means 12-1 Of course, it is not always necessary to use both of the signal transmission means 15-1 and only one of them may be selected and used. Similarly, only one of the recording / reproducing unit 12-2 and the signal transmission unit 15-2 may be selected.
[0055]
As described above, also in the traffic accident sound detection apparatus according to the present embodiment, the recorded accident sound can be efficiently used according to the situation and purpose, and the recorded detection signals are individually reproduced, and sufficient time is provided. The accident sound can be determined by applying.
[0056]
Embodiment 6 FIG.
FIG. 6 is a functional configuration block diagram of a traffic accident sound detection apparatus according to Embodiment 3 of the present invention. In FIG. 6, the same or corresponding parts as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted. In FIG. 6, 11-0 is accident sound detecting means, 12-0 is recording / reproducing means, 15-0 is signal transmitting means, and 20 is reproducing means.
[0057]
Next, the operation will be described. The recorded accident sounds are reproduced by the reproducing
[0058]
In FIG. 6, since only the accident sound is detected with high accuracy in the recording / reproducing means 12-0, the number of recordings is relatively small. Therefore, it is possible to efficiently evaluate the accident sound considering that the accident sound is reproduced and evaluated after recording.
[0059]
In FIG. 6, the signal detected by the accident sound detecting means 11-0 is recorded by the recording / reproducing means 12-0 and transmitted to the outside by the signal transmitting means 15-0, but the recording / reproducing means 12-0 is used. Of course, it is not always necessary to use both of the signal transmission means 15-0, and only one of them may be selected and used.
[0060]
As described above, in the traffic accident sound detection apparatus according to the present embodiment, a sufficient time can be taken for the discrimination by post-processing the recorded detection signal.
[0061]
【The invention's effect】
As described above, according to the present invention , a relatively high selectivity can be obtained due to the difference between the traffic sound detection means arranged at a position where the traffic sound can be detected and the discrimination method for detecting the accident sound from the detected traffic sound . And a plurality of accident sound detection means having a different selectivity comprising a higher number of accident sounds detected than the relatively high selectivity and a relatively low selectivity with respect to the high selectivity. A traffic accident sound detecting device, wherein an accident sound detecting means having a relatively low selectivity and an accident sound detecting means having a high selectivity are connected in parallel to the traffic sound detecting means , In addition, due to the difference between the traffic sound detection means arranged at a position where traffic sound can be detected and the discrimination method for detecting accident sound from the detected traffic sound, relatively high selectivity and the relatively high selection A lot of accident sounds detected compared to the sex A plurality of accident sound detection means having different selectivities each having a relatively low selectivity with respect to a high selectivity, and a first having a relatively low selectivity with respect to the traffic sound detection means. The accident sound detection means and the second accident sound detection means having high selectivity are connected in parallel, and the third accident sound detection means having higher selectivity is connected in series to the second accident sound detection means. Since the traffic accident sound detection device is characterized in that the third accident sound detection means detects the accident sound based on the detection result of the second accident sound detection means, the detected accident sound is It can be used properly according to the purpose.
[Brief description of the drawings]
FIG. 1 is a functional block diagram of a traffic accident sound detection apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a functional configuration block diagram of a traffic accident sound detection apparatus according to Embodiment 2 of the present invention.
FIG. 3 is a functional configuration block diagram of a traffic accident sound detection apparatus according to Embodiment 3 of the present invention.
FIG. 4 is a functional block diagram of a traffic accident sound detection apparatus according to
FIG. 5 is a functional configuration block diagram of a traffic accident sound detection apparatus according to Embodiment 5 of the present invention;
FIG. 6 is a functional configuration block diagram of a traffic accident sound detection apparatus according to Embodiment 6 of the present invention.
FIG. 7 is a block diagram showing a configuration of a conventional traffic accident situation recording apparatus.
8 is a block diagram showing a configuration of a traffic accident sound detection part in FIG. 7. FIG.
[Explanation of symbols]
10-1 Traffic sound detection means, 11-0 to 11-3 Accident sound detection means, 12-0 to 12-3 Recording / reproduction means, 14 reproduction control means, 15-0 to 15-3 signal transmission means, 20 reproduction means .
Claims (2)
検出された交通音から事故音を検出する判別法の違いにより、相対的に高い選択性と、前記相対的に高い選択性に比べて検出される事故音の多い、前記高い選択性に対して相対的に低い選択性からなる異なる選択性を有する複数の事故音検出手段と、
を有し、
前記交通音検出手段に対し、相対的に低い選択性を有する事故音検出手段と高い選択性を有する事故音検出手段が並列に接続されていることを特徴とする交通事故音検出装置。Traffic sound detection means arranged at a position where traffic sound can be detected;
Due to the difference in the discriminating method for detecting accident sound from detected traffic sound, with respect to the high selectivity and the high selectivity with many accident sounds detected compared to the relatively high selectivity A plurality of accident sound detection means having different selectivity composed of relatively low selectivity;
I have a,
A traffic accident sound detecting device, wherein an accident sound detecting means having a relatively low selectivity and an accident sound detecting means having a high selectivity are connected in parallel to the traffic sound detecting means.
検出された交通音から事故音を検出する判別法の違いにより、相対的に高い選択性と、前記相対的に高い選択性に比べて検出される事故音の多い、前記高い選択性に対して相対的に低い選択性からなる異なる選択性を有する複数の事故音検出手段と、 Due to the difference in the discriminating method for detecting accident sound from detected traffic sound, with respect to the high selectivity and the high selectivity with more accident sounds detected compared to the relatively high selectivity A plurality of accident sound detection means having different selectivity consisting of relatively low selectivity;
を有し、 Have
前記交通音検出手段に対し、相対的に低い選択性を有する第１の事故音検出手段と高い選択性を有する第２の事故音検出手段が並列に接続され、この第２の事故音検出手段にこれより高い選択性を有する第３の事故音検出手段が直列に接続され、第２の事故音検出手段の検出結果に基づいて第３の事故音検出手段が事故音検出を行うことを特徴とする交通事故音検出装置。 A first accident sound detection means having a relatively low selectivity and a second accident sound detection means having a high selectivity are connected in parallel to the traffic sound detection means, and the second accident sound detection means. The third accident sound detecting means having higher selectivity than the second accident sound detecting means is connected in series, and the third accident sound detecting means detects the accident sound based on the detection result of the second accident sound detecting means. Traffic accident sound detection device.
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| JP2001204634A JP4629922B2 (en) | 2001-07-05 | 2001-07-05 | Traffic accident sound detection device |
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| JP2001204634A JP4629922B2 (en) | 2001-07-05 | 2001-07-05 | Traffic accident sound detection device |
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| CN107851380A (en) * | 2015-07-17 | 2018-03-27 | 罗伯特·博世有限公司 | Method and apparatus for alerting other traffic participants when vehicle error travels |
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| CN115223370B (en) * | 2022-08-31 | 2023-01-17 | 四川九通智路科技有限公司 | Traffic accident detection method and system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04338900A (en) * | 1991-05-16 | 1992-11-26 | Ono Denki Kk | Traffic accident condition recorder |
| JPH08263785A (en) * | 1995-03-27 | 1996-10-11 | Mitsubishi Denki Eng Kk | Traffic monitoring device |
| JPH09245285A (en) * | 1996-03-11 | 1997-09-19 | Mitsubishi Denki Eng Kk | Accident sound detecting circuit and its device |
| JPH1011691A (en) * | 1996-06-21 | 1998-01-16 | Mitsubishi Denki Eng Kk | Accident sound detection circuit/device |
| JPH1069594A (en) * | 1996-08-28 | 1998-03-10 | Toyota Motor Corp | Car accident detector |
| JPH10142042A (en) * | 1996-11-13 | 1998-05-29 | Mitsubishi Denki Eng Kk | Accident sound-detecting circuit |
| JPH10275295A (en) * | 1997-03-31 | 1998-10-13 | Mitsubishi Denki Eng Kk | Accidental sound detector |
| JP2000163687A (en) * | 1998-11-25 | 2000-06-16 | Sumitomo Electric Ind Ltd | Device and system for detecting accident |
| JP2001033304A (en) * | 1999-07-21 | 2001-02-09 | Sumitomo Electric Ind Ltd | Sound source classification recognizing apparatus |
-
2001
- 2001-07-05 JP JP2001204634A patent/JP4629922B2/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04338900A (en) * | 1991-05-16 | 1992-11-26 | Ono Denki Kk | Traffic accident condition recorder |
| JPH08263785A (en) * | 1995-03-27 | 1996-10-11 | Mitsubishi Denki Eng Kk | Traffic monitoring device |
| JPH09245285A (en) * | 1996-03-11 | 1997-09-19 | Mitsubishi Denki Eng Kk | Accident sound detecting circuit and its device |
| JPH1011691A (en) * | 1996-06-21 | 1998-01-16 | Mitsubishi Denki Eng Kk | Accident sound detection circuit/device |
| JPH1069594A (en) * | 1996-08-28 | 1998-03-10 | Toyota Motor Corp | Car accident detector |
| JPH10142042A (en) * | 1996-11-13 | 1998-05-29 | Mitsubishi Denki Eng Kk | Accident sound-detecting circuit |
| JPH10275295A (en) * | 1997-03-31 | 1998-10-13 | Mitsubishi Denki Eng Kk | Accidental sound detector |
| JP2000163687A (en) * | 1998-11-25 | 2000-06-16 | Sumitomo Electric Ind Ltd | Device and system for detecting accident |
| JP2001033304A (en) * | 1999-07-21 | 2001-02-09 | Sumitomo Electric Ind Ltd | Sound source classification recognizing apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107851380A (en) * | 2015-07-17 | 2018-03-27 | 罗伯特·博世有限公司 | Method and apparatus for alerting other traffic participants when vehicle error travels |
| CN107851380B (en) * | 2015-07-17 | 2021-03-23 | 罗伯特·博世有限公司 | Method and device for warning other traffic participants when a vehicle is traveling by mistake |
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| JP2003016574A (en) | 2003-01-17 |
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