JP2011514579A - 道路及びトラフィック状態感知システム - Google Patents
道路及びトラフィック状態感知システム Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
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Abstract
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Claims (15)
- トラフィック状態情報を収集するトラフィック感知システムであって、
可搬型トラフィック感知装置からトラフィックレポートを受信し、当該受信されたトラフィックレポートから集成トラフィックレポートを提供するトラフィック感知サーバ(110)と、
前記装置近くのトラフィック関連情報を感知して前記トラフィック感知サーバにトラフィックレポートを送信する複数の可搬型トラフィック感知装置(120)であって、加速計及びセル方式通信装置、前記加速計の配向を判別するコンポーネント、前記加速計をサンプリングするコンポーネント、並びに当該加速計のサンプルからトラフィック関連情報を導出するコンポーネントを含む可搬型トラフィック感知装置(120)と
を含むことを特徴とするシステム。 - 前記配向を判別するコンポーネントは、重力及び制動力を用いて判別することを特徴とする請求項1に記載のトラフィック感知システム。
- 前記配向を判別するコンポーネントは、事前回転角と、傾斜角と、前記重力及び制動力に基づいた事後回転角とを算出することを特徴とする請求項2に記載のトラフィック感知システム。
- 前記加速計は、基準方向Xが可搬型トラフィック感知装置を搬送している車両の前方向に沿い、Yが前記車両の側方向に沿い、Zが垂直下方向であるように、仮想的に再配向されることを特徴とする請求項3に記載のトラフィック感知システム。
- 前記制動力は、可搬型トラフィック感知装置を搬送している車両の動きの結果として生成されることを特徴とする請求項2に記載のトラフィック感知システム。
- 可搬型トラフィック感知装置は、当該装置自身を搬送している車両が現在制動中であるか否かについて検出するコンポーネントを含むことを特徴とする請求項1に記載のトラフィック感知システム。
- 可搬型トラフィック感知装置は、当該可搬型トラフィック感知装置を搬送している車両が制動しているか否かを、加速計読み取り上の変化に基づいて検出することを特徴とする請求項6に記載のトラフィック感知システム。
- 可搬型トラフィック感知装置は、当該装置近くの周囲音をサンプリングするマイクロホンと、前記周囲音のサンプリングに基づいて警笛が鳴動しているか否かを検出するコンポーネントとを含むことを特徴とする請求項1に記載のトラフィック感知システム。
- 前記警笛が鳴動しているか否かを検出するコンポーネントは、前記周囲音のサンプルの周波数スペクトルを生成し、警笛鳴動に関連する特性周波数内に1つのピークを含む複数のピークを検出することに基づいて、検出することを特徴とする請求項8に記載のトラフィック感知システム。
- 可搬型トラフィック感知装置は、当該装置を搬送している車両が窪みに遭遇したか否かを検出するコンポーネントを含むことを特徴とする請求項1に記載のトラフィック感知システム。
- 前記車両が窪みに遭遇したか否かを検出するコンポーネントは、前記車両が低速度閾値より速く走行しているときに、加速計サンプルの垂直方向におけるスパイクをチェックすることよって、並びに、前記車両が前記低速度閾値より遅く走行しているときに、前記加速計サンプルの持続性ディップをチェックすることによって、当該遭遇したか否かを検出することを特徴とする請求項10に記載のトラフィック感知システム。
- 可搬型トラフィック感知装置は、車両又は歩行者に当該装置が搬送されているか否かを検出するコンポーネントを含むことを特徴とする請求項1に記載のトラフィック感知システム。
- 前記車両又は歩行者に前記装置が搬送されているか否かを検出するコンポーネントは、加速計サンプルの変化に基づいて制動が検出されるか否か判別することよって、当該搬送されているか否かを検出することを特徴とする請求項12に記載のトラフィック感知システム。
- 可搬型トラフィック感知装置は、セル送信機から前記装置に受信される信号と、それらセル方式送信機の伝送範囲を各々が表す複数の凸包間の交差とに基づいて前記装置の場所を判別するコンポーネントを含むことを特徴とする請求項1に記載のトラフィック感知システム。
- トラフィック状態情報を収集するトラフィック感知システムであって、
可搬型トラフィック感知装置からトラフィックレポートを受信し、当該受信されたトラフィックレポートから生成される集成トラフィックレポートを提供するトラフィック感知サーバ(110)と、
複数の可搬型トラフィック感知装置(120)であって、
セル方式電話、
全地球測位システム装置、
加速計、並びに
トラフィックレポートを生成且つ送信するコンポーネント群であり、前記加速計を配向せしめるコンポーネントと、前記加速計及び前記全地球測位システム装置をサンプリングするコンポーネントと、前記加速計及び前記全地球測位システム装置のサンプルからトラフィック関連情報を導出するコンポーネントとからなるコンポーネント群
を含む可搬型トラフィック感知装置(120)と
を含むことを特徴とするトラフィック感知システム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US2479808P | 2008-01-30 | 2008-01-30 | |
US61/024,798 | 2008-01-30 | ||
US12/147,438 | 2008-06-26 | ||
US12/147,438 US8423255B2 (en) | 2008-01-30 | 2008-06-26 | System for sensing road and traffic conditions |
PCT/US2009/030028 WO2009099680A1 (en) | 2008-01-30 | 2009-01-02 | System for sensing road and traffic conditions |
Publications (2)
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JP2011514579A true JP2011514579A (ja) | 2011-05-06 |
JP5360839B2 JP5360839B2 (ja) | 2013-12-04 |
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US (1) | US8423255B2 (ja) |
EP (1) | EP2243126B1 (ja) |
JP (1) | JP5360839B2 (ja) |
CN (1) | CN101933062B (ja) |
WO (1) | WO2009099680A1 (ja) |
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US20090192688A1 (en) | 2009-07-30 |
JP5360839B2 (ja) | 2013-12-04 |
CN101933062B (zh) | 2014-05-14 |
EP2243126B1 (en) | 2018-09-05 |
WO2009099680A1 (en) | 2009-08-13 |
CN101933062A (zh) | 2010-12-29 |
EP2243126A4 (en) | 2012-05-30 |
EP2243126A1 (en) | 2010-10-27 |
US8423255B2 (en) | 2013-04-16 |
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