JP3594182B2

JP3594182B2 - Traffic signal control method and traffic signal control system in mobile communication system

Info

Publication number: JP3594182B2
Application number: JP2000054500A
Authority: JP
Inventors: 英治中村
Original assignee: MX Mobiling Ltd
Current assignee: MX Mobiling Ltd
Priority date: 2000-02-29
Filing date: 2000-02-29
Publication date: 2004-11-24
Anticipated expiration: 2020-02-29
Also published as: JP2001243593A

Description

【０００１】
【発明の属する技術分野】
本発明は、移動通信システムにおける交通信号制御方法および交通信号制御システムに関し、特に、携帯電話を所持する障害者をサポートする信号機の制御方法とその制御システムに関する。
【０００２】
【従来の技術】
従来の障害者用交通信号制御方法は、障害者の状況に応じて以下のような制御方法を用いていた。
▲１▼視覚障害者を対象にした従来の交通信号制御方法は、横断しようとする道路の交通信号機の近くに設置されている視覚障害者用の押ボタンスイッチを視覚障害者が押すことにより、交通信号機に対して視覚障害者横断誘導音の起動要求を行っていた。
【０００３】
また、例えば特開平４−６９７９９号公報に開示されているように、個別無線を使用して横断しようとする道路の交通信号機と視覚障害者の所持する端末との間で必要な情報通信を行うことにより、交通信号機の存在を視覚障害者に知らせると共に、視覚障害者自身が安全に道路横断するために視覚障害者の所持する端末から交通信号機に対して視覚障害者横断誘導音の起動要求を行うものが知られている。
【０００４】
▲２▼歩行障害者を対象にした従来の交通信号制御方法は、特に対応が取られていなかった。このことは、歩行障害者をサポートする内容が道路の段差や溝を解消するバリアフリーを重点対策としており、信号機を制御することまで至っていないためである。
【０００５】
【発明が解決しようとする課題】
これまで説明したように、従来の障害者用交通信号制御方法は以下のような問題点があった。
▲１▼視覚障害者を対象にした従来の交通信号制御方法では、横断しようとする道路の交通信号機に無線送受信器を設けると共に、この交通信号機用無線送受信器との間で情報通信を行うための新たな移動端末を視覚障害者が所持しなければならなかった。このため新規の移動端末が必要となり、しかもこの移動端末は交通信号機との通信のみを行う専用端末であり、その分コスト高になるという問題があった。
【０００６】
▲２▼歩行障害者を対象にした従来の交通信号制御方法では、自動車等が通行する車道の交通渋滞解消を重視することから車に対する青信号時間を多く配分し、歩行者に対する青信号時間はハンディキャップを持たない通常の歩行者を基準にした時間であり、歩行障害者にとって道路を横断するための充分な青信号時間と言えるものではなかった。また、この歩行障害者に対する道路横断のための充分な青信号時間を配分できなかった背景には、視覚障害者の場合と同じように押ボタンスイッチ等で歩行障害者が横断しようとしていることを交通信号機に対して通知する方法では、通常の歩行者が自分たちの青信号時間を確保したいあまりに虚偽の押ボタン動作を起こす可能性があり、このため全体の交通信号機制御動作に支障をきたすことがある。要は歩行障害者が道路を横断しようとしていることを交通信号機に対して虚偽の通知を排除して正確に伝える方法がなかったという問題点があった。
【０００７】
本発明は、上記の問題点に鑑みなされたもので、現在急速に普及している携帯電話（移動局）を利用して、この移動局を所持する障害者が道路を横断しようとすると自動的に移動通信システムが障害者を認識し、あらかじめ登録されている障害者のサービスクラスに応じた交通信号機制御動作を行うことにより、安価でしかも正確に運用できる移動通信システムにおける交通信号制御方法および交通信号制御システムを提供することを目的としたものである。
【０００８】
【課題を解決するための手段】
【００１０】
また、本発明の移動通信システムにおける別の交通信号制御方法および交通信号制御システムは、視覚障害者が通行する道路の横断歩道に関する交通信号制御方式において、視覚障害者が所持する移動局と、前記横断歩道付近のみをサービスエリアにする信号機基地局と、ひとつまたは複数の信号機基地局と無線回線で接続された基地局と移動加入者交換機とホームロケーションレジスタを含む移動通信システムと、信号機基地局と接続された信号機制御部と、視覚障害者横断誘導音を放送できるスピーカを含む交通信号機で構成され、
前記移動局が前記信号機基地局のサービスエリアに入ると移動局は信号機基地局に対してチャネル切換要求を送る手段と、前記信号機基地局はチャネル切換要求を受けて前記基地局を経由して前記移動加入者交換機に対して位置登録要求を送る手段と、前記移動加入者交換機は位置登録要求を受けて前記移動局が視覚障害者であることそして移動局を所持している視覚障害者が道路を横断しようと横断歩道エリアに入ったことを認識する手段と、前記移動加入者交換機は視覚障害者が道路を横断しようとすることを認識した後前記基地局と信号機基地局を経由して前記信号機制御部に対して信号機設定信号を送出する手段と、前記信号機制御部は信号機設定信号を受けて前記交通信号機のスピーカに対して横断歩道の青信号と連動した視覚障害者横断誘導音を放送する手段を有する交通信号制御システムであって、
前記移動局が視覚障害者であることを認識する手段は、あらかじめ視覚障害者の所持する移動局を移動通信システムに登録する際に前記ホームロケーションレジスタの加入者データのサービスクラスを視覚障害者に設定しておき、このため加入者データのサービスクラスを読み取った前記移動加入者交換機において移動局が視覚障害者であることを認識することを特徴とする。
【００１１】
また、本発明の移動通信システムにおける別の交通信号制御方法および交通信号制御システムは、歩行障害者が通行する道路の横断歩道に関する交通信号制御方式において、歩行障害者が所持する移動局と、前記横断歩道付近のみをサービスエリアにする信号機基地局と、ひとつまたは複数の信号機基地局と無線回線で接続された基地局と移動加入者交換機とホームロケーションレジスタを含む移動通信システムと、信号機基地局と接続された信号機制御部と、横断歩道の青信号時間を調節できる交通信号機で構成され、前記移動局が前記信号機基地局のサービスエリアに入ると移動局は信号機基地局に対してチャネル切換要求を送る手段と、前記信号機基地局はチャネル切換要求を受けて前記基地局を経由して前記移動加入者交換機に対して位置登録要求を送る手段と、前記移動加入者交換機は位置登録要求を受けて前記移動局が歩行障害者であることそして移動局を所持している歩行障害者が道路を横断しようと横断歩道エリアに入ったことを認識する手段と、前記移動加入者交換機は歩行障害者が道路を横断しようとすることを認識した後前記基地局と信号機基地局を経由して前記信号機制御部に対して信号機設定信号を送出する手段と、前記信号機制御部は信号機設定信号を受けて前記交通信号機に対して横断歩道の青信号時間を延長する制御を行う手段を有する交通信号制御システムであって、前記移動局が歩行障害者であることを認識する手段は、あらかじめ視覚障害者の所持する移動局を移動通信システムに登録する際に前記ホームロケーションレジスタの加入者データのサービスクラスを歩行障害者に設定しておき、このため加入者データのサービスクラスを読み取った前記移動加入者交換機において移動局が歩行障害者であることを認識することを特徴とする。
【００１２】
【発明の実施の形態】
以下に図面を参照しつつ、本発明の実施の形態を説明する。図１は、本発明の移動通信システムの全体構成ブロック図である。図１に示すように、この移動通信システムは、障害者が所持する携帯電話である移動局（Ｓ−ＭＳ）１と、このＳ−ＭＳ１と無線回線で接続された信号機基地局（Ｓ−ＢＴＳ）２と、このＳ−ＢＴＳ２と無線回線で接続された基地局（ＢＴＳ）３と、このＢＴＳ３と有線回線で接続された基地局制御装置（ＢＳＣ）４と、このＢＳＣ４と有線回線で接続された移動通信交換機（ＭＳＣ）５と、このＭＳＣ５と有線回線で接続された公衆電話網（ＰＳＴＮ）１０と、交通信号に関する各種制御を行う信号機制御部（Ｓ−ＣＮＴ）１１から構成されており、Ｓ−ＭＳ１とＳ−ＢＴＳ２の間の上り無線回線周波数（制御チャネル）をＦ１とし、Ｓ−ＭＳ１とＳ−ＢＴＳ２の間の下り無線回線周波数（制御チャネル）をｆ１とし、Ｓ−ＢＴＳ２とＢＴＳ３の間の上り無線回線周波数（制御チャネル）をＦ２とし、Ｓ−ＢＴＳ２とＢＴＳ３の間の下り無線回線周波数（制御チャネル）をｆ２としている。
【００１３】
また、移動通信交換機（ＭＳＣ）５は、移動加入者に関する呼処理全般を制御している移動加入者交換機（ＭＬＳ）６と、公衆電話網（ＰＳＴＮ）１０とのインタフェース制御や複数の移動加入者交換機との間の制御を行う移動関門中継交換機（ＭＧＳ）７と、移動加入者クラスや移動加入者に関するサービス情報等の加入者データや、移動加入者の位置情報などが記憶されているホームロケーションレジスタ（ＨＬＲ）９と、移動加入者交換機６や移動関門交換機７とホームロケーションレジスタ（ＨＬＲ）９との間の各種情報転送を司るＮＯ．７共通線信号装置（ＮＯ．７ＳＴＰ）８から構成されている。
【００１４】
図２は、図１に示す信号機基地局２の構成ブロック図である。図２に示すように、この信号機基地局２は、障害者が所持する移動局１と無線回線を構成する対移動局用アンテナ２０と、移動局との送信動作と受信動作を一本のアンテナで実施できるようにするための送受共用器２２と、移動局からの上り制御チャネルＦ１を受信する受信部２３と、受信したＦ１を基地局への上り制御チャネルＦ２に変換し、また基地局から受信した下り制御チャネルｆ２を移動局への下り制御チャネルｆ１に変換する周波数変換部２４と、周波数変換部２４の出力である基地局への上り制御チャネルＦ２を規定の送信電力に増幅する送信部２５と、基地局との送信動作と受信動作を一本のアンテナで実施できるようにするための送受共用器２６と、基地局３と無線回線を構成する対基地局用アンテナ２１と、基地局への下り制御チャネルｆ２を受信する受信部２７と、周波数変換部２４の出力である移動局への下り制御チャネルｆ１を規定の送信電力に増幅する送信部２８と、受信部２７で受信した信号機設定信号を信号機制御部へ送るための信号変換やプロトコル制御を行う信号機制御部インタフェース２９から構成されている。
【００１５】
図３は、図１に示す信号機制御部１１の構成ブロック図である。図３に示すように、この信号機制御部１１は、視覚障害者用押ボタンスイッチ３０と、この押ボタンスイッチ信号と信号機基地局からの信号機設定信号の二つの入力信号を基に表示灯（信号）や視覚障害者横断誘導音をコントロールする制御回路３１と、この制御回路出力に基づいて表示灯（信号）や視覚障害者横断誘導音の切替動作を行うスイッチ回路３２と、この切替えられた表示灯（信号）の点灯動作を行う表示灯駆動回路３３と、切替えられた視覚障害者横断誘導音をスピーカで鳴らすスピーカ駆動回路３４と、表示灯（信号）３５と、スピーカ３６から構成されている。
【００１６】
図４は、図２に示す信号機基地局２と、図３に示す信号機制御部１１を信号機に設置した場合の一例を示す設置状態イメージ図である。図４に示すように、対基地局用アンテナ２１は基地局３との無線回線（Ｆ２、ｆ２）を確実に確保するため交通信号機の一番高い位置に設置し、対移動局用アンテナは道路の横断歩道の部分のみに電波（Ｆ１、ｆ１）を送信したり受信するため下向きにしかも指向特性の狭いアンテナ素子を選別、調節して設置している。
【００１７】
ここで、特に注意しなければならないことは、上記の横断歩道部分のみをサービスエリアにするための対移動局用アンテナにおける指向特性の調節と共に対移動局用アンテナから放射される電波の送信出力の調節である。この送信出力値は、他の通信に与える干渉を排除するためにできるだけ低い送信出力とし、しかも当該横断歩道を渡る障害者が所持する移動局との通信が確立できる程度の値とする。そして同図には交通信号機本体のほか、信号機基地局２の筐体や、信号機制御部１１の筐体、表示灯３５、スピーカ３６、視覚障害者用押ボタンスイッチ３０の設置状態の一例が表されている。
【００１８】
また、図５は、図４に示す対移動局用アンテナの形式を変えた場合の一例を示す設置状態イメージ図である。図５に示すように、対移動局用アンテナ２０は横断歩道上に埋設した複数の平面アンテナ形式で構成されており、これは複雑な横断歩道の場合に適用するものである。なお、この対移動局用アンテナの形式は、図４の形式や図５の形式を図示したが、これに限るものではなく、信号機基地局を設計する際、当該サービスエリアの範囲を正確に実現するために適宜上記のアンテナ形式またはその他のアンテナ形式を選択するものとする。
【００１９】
続いて本発明の動作説明を行うが、まず図２の信号機基地局の動作を説明する。信号機基地局２は、基地局３からの下り制御チャネルｆ２を対基地局用アンテナ２１、送受共用器２６を経由して受信部２７で受信し、このｆ２を周波数変換部２４で信号機基地局用下り制御チャネルｆ１に変換する。そしてこのｆ１を送信部２８で電力増幅した後送受共用器２２、対移動局用アンテナ２０を経由して横断歩道付近に電波放射を行い、信号機基地局サービスエリアを構成する。
【００２０】
そして、信号機基地局２は、移動局１からの発信接続動作や位置登録動作等の各種制御動作における上り制御チャネルＦ１を対移動局用アンテナ２０、送受共用器２２を経由して受信部２３で受信し、このＦ１を周波数変換部２４で基地局用上り制御チャネルＦ２に変換する。そしてこのＦ２を送信部２５で電力増幅した後送受共用器２６、対基地局用アンテナ２１を経由して基地局３に報知し、信号機基地局サービスエリアを構成する。
【００２１】
また、事前に次の３点の条件が移動通信システム側や移動局に設定されているものとする。
▲１▼あらかじめ信号機基地局建設時の設定において、信号機基地局に対して信号機基地局のサービスエリア（横断歩道付近）が単独の位置登録エリアとなる設定をしておく。
▲２▼移動加入者交換機は、あらかじめ障害者の所持する携帯電話（移動局）を移動通信システムに登録する際にホームロケーションレジスタの加入者データにおいてそれぞれのハンディキャップに応じたサービスクラスを設定する。即ち、視覚障害者サービスクラスでは、登録加入者が道路を横断する際、横断歩道の青信号に連動して障害者横断誘導音の放送を行うサービスを実施し、歩行障害者サービスクラスでは、登録加入者が道路を横断する際、横断歩道の青信号時間を通常より長い時間確保するサービスを実施する。
▲３▼障害者が所持する移動局は、電源が入った状態にあり、待ち受け動作を行っているものとする。
【００２２】
図６は、本発明の移動通信システムの全体動作シーケンスチャート図である。図６に示すように、障害者が所持している移動局１が道路を横断するために横断歩道の手前にくると、信号機基地局のサービスエリアに入ることになる（ステップＡ１）。信号機基地局エリアに入った移動局１は下り制御チャネルがｆ２からｆ１に変化することを受けて、上り制御チャネルＦ１を使ってチャネル切換要求信号を信号機基地局２に送る（ステップＢ１）。信号機基地局サービスエリアは単独の位置登録エリアを構成しているため、チャネル切換要求信号を受け取った信号機基地局２は位置登録変更が必要と判断し、上り制御チャネルＦ２を使って基地局３に位置登録要求信号を送る（ステップＢ２）。位置登録要求信号を受け取った基地局３は、移動局１の加入者番号と信号機基地局２の位置登録エリア番号を含んだ位置登録信号を移動加入者交換機６に送る（ステップＢ３）。
【００２３】
位置登録信号を受け取った移動加入者交換機６は、移動局１の加入者番号から該当するホームロケーションレジスタ９を特定し、ＮＯ．７共通線信号装置８を経由してホームロケーションレジスタ９を遠隔アクセスして移動局１の加入者データ上の位置登録エリア番号を信号機基地局２の番号に変更登録すると共に、ホームロケーションレジスタ９の加入者データ上のサービスクラスを問い合わせる（ステップＢ４）。ホームロケーションレジスタ９では、信号機基地局エリア番号を加入者データ上の位置登録エリアに記憶し、加入者データ上のサービスクラスを読み出し（ステップＡ２）、読み出した加入者データ上のサービスクラスを加入者データ問い合わせの応答信号として移動加入者交換機６に返送する（ステップＢ５）。なお、このサービスクラスは視覚障害者と歩行障害者のクラスを設けておく。
【００２４】
移動加入者交換機６では、このサービスクラスデータと信号機基地局エリア番号から障害者が信号機のエリアにはいったことを認識し（ステップＡ３）、その結果位置登録信号送出の応答信号と共に、このサービスクラスデータに対応した信号機設定コマンドを基地局３に送る（ステップＢ６）。信号機設定コマンドを受け取った基地局３では、無線回線上の下り制御チャネルｆ２を使って位置登録要求応答信号と共に信号機設定信号を信号機基地局２に送る（ステップＢ７，Ｂ８）。信号機設定信号を受け取った信号機基地局２は、この信号を受信部２７で受信し、信号機制御部インタフェース２９を経由して信号機制御部１１に送る。信号機制御部１１は受け取ったサービスクラスに対応した信号機設定信号をタイマや表示灯制御プログラム等で構成された制御回路３１に入力し、視覚障害者のサービスクラスに対応した信号機設定信号の場合は、横断歩道の表示灯が青信号に切換る動作と同時にスピーカをＯＮにするためにスイッチ回路３２を経由してスピーカ駆動回路３４を動作させ、横断歩道の青信号と連動した視覚障害者横断誘導音をスピーカ３６から放送する制御を行う。また、歩行障害者に対応した信号機設定信号の場合は、制御回路３１において横断歩道の青信号時間を通常の青信号時間より多い時間に設定し、その時間信号をスイッチ回路３２に送り、横断歩道の青信号時間を延長する制御を行う。そして信号機基地局２は、下り制御チャネルｆ１を使ってチャネル切換要求応答信号を移動局１に送り、処理を終わる（ステップＢ９）。
【００２５】
なお、この視覚障害者横断誘導音の放送や横断歩道青信号時間延長動作は、障害者の道路横断が終了した後横断歩道の青信号が赤信号に変化すると同時に停止するが、障害者の横断準備ができていなくて障害者が横断歩道付近に留まっている場合は、引き続き次の横断歩道の青信号に連動して視覚障害者横断誘導音の放送や横断歩道青信号時間延長動作が行われる。
【００２６】
図７は、本発明のホームロケーションレジスタにおけるメモリレイアウト図の一例である。図７に示すように、ホームロケーションレジスタ４０内の加入者データ４２にアクセスする場合は、加入者番号４１を索引して行う。そして加入者データ４２内にサービスクラス４３のエリアがあり、このエリア内の特定ビットに障害者クラスを登録する。図７の例では、視覚障害者の場合は１とし、歩行障害者の場合は２としている。なお、この障害者クラスの数やデータ数値は一例であり、必要に応じて適宜増やすことができる。
【００２７】
【発明の効果】
以上説明したように、本発明によれば現在急速に普及している携帯電話を利用して、視覚や歩行に関してハンディキャップを有している障害者が所持する携帯電話（移動局）を移動通信システムに登録する際に移動通信システムのホームロケーションレジスタの加入者データにおいてそれぞれのハンディキャップに応じたサービスクラスをあらかじめ設定すること、障害者が道路の横断歩道付近に到達したことを移動通信システムが認識すること、そしてこの移動通信システムから交通信号機に対してそれぞれのハンディキャップに応じた信号機制御信号を送出することにより、安価でしかも正確に運用できる移動通信システムにおける交通信号制御方法および交通信号制御システムの実現が可能になった。
【図面の簡単な説明】
【図１】本発明の移動通信システムの全体構成ブロック図である。
【図２】本発明の図１に示す信号機基地局の構成ブロック図である。
【図３】本発明の図１に示す信号機制御部の構成ブロック図である。
【図４】本発明の図２に示す信号機基地局と、図３に示す信号機制御部を信号機に設置した場合の一例を示す設置状態イメージ図である。
【図５】本発明の図４に示す対移動局用アンテナの形式を変えた場合の一例を示す設置状態イメージ図である。
【図６】本発明の移動通信システムの全体動作シーケンスチャート図である。
【図７】本発明のホームロケーションレジスタにおけるメモリレイアウト図の一例である。
【符号の説明】
１移動局（Ｓ−ＭＳ）
２信号機基地局（Ｓ−ＢＴＳ）
３基地局（ＢＴＳ）
４基地局制御装置（ＢＳＣ）
５移動通信交換機（ＭＳＣ）
６移動加入者交換機（ＭＬＳ）
７移動関門中継交換機（ＭＧＳ）
８ＮＯ．７共通線信号装置（ＮＯ．７ＳＴＰ）
９ホームロケーションレジスタ（ＨＬＲ）
１０公衆電話網（ＰＳＴＮ）
１１信号機制御部（Ｓ−ＣＮＴ）
２０対移動局用アンテナ
２１対基地局用アンテナ
２２，２６送受共用器
２３，２７受信部
２４周波数変換部
２５，２８送信部
２９信号機制御部インタフェース
３０視覚障害者用押ボタンスイッチ
３１制御回路
３２スイッチ回路
３３表示灯駆動回路
３４スピーカ駆動回路
３５表示灯（信号）
３６スピーカ
４０ホームロケーションレジスタ
４１加入者番号
４２加入者データ
４３サービスクラス[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a traffic signal control method and a traffic signal control system in a mobile communication system, and more particularly, to a traffic signal control method and a control system thereof for supporting a disabled person having a mobile phone.
[0002]
[Prior art]
The conventional traffic signal control method for the disabled uses the following control method according to the situation of the disabled.
(1) The conventional traffic signal control method for the visually impaired is based on the fact that a visually impaired person pushes a pushbutton switch for a visually impaired person installed near a traffic signal on a road to be crossed. A request was made to a traffic signal to activate a crossing guidance sound for the visually impaired.
[0003]
Further, as disclosed in, for example, Japanese Patent Application Laid-Open No. 4-69799, necessary information communication is performed between a traffic signal on a road to be traversed using individual radio and a terminal possessed by a visually impaired person. This informs the visually impaired person of the existence of the traffic light, and in order for the visually impaired person to safely cross the road, the terminal possessed by the visually impaired requests the traffic light to activate the visually impaired crossing guidance sound. What you do is known.
[0004]
(2) Conventional traffic signal control methods for persons with walking disabilities have not taken any particular measures. This is because the content supporting the person with walking disability is focused on barrier-free, which eliminates steps and grooves on the road, and has not led to controlling traffic lights.
[0005]
[Problems to be solved by the invention]
As described above, the conventional traffic signal control method for the disabled has the following problems.
(1) In the conventional traffic signal control method for visually impaired persons, a radio transceiver is provided at a traffic signal on a road to be crossed, and information communication is performed with the radio transceiver for the traffic signal. The new mobile terminal had to be owned by the visually impaired. For this reason, a new mobile terminal is required, and this mobile terminal is a dedicated terminal that performs only communication with a traffic signal, and there is a problem that the cost increases accordingly.
[0006]
(2) In the conventional traffic signal control method for persons with walking disabilities, green light time for cars is allocated more because green light traffic time for cars and the like is emphasized to reduce traffic congestion on roads where cars and the like pass, and green light time for pedestrians is handicapped. It is a time based on a normal pedestrian who does not have a pedestrian, and it cannot be said that a pedestrian with a disability has sufficient green light time to cross a road. Also, in the background where sufficient green light time for crossing the road for the gait disability could not be allocated, the fact that the gait disability is trying to cross with a push button switch etc. is the same as in the case of the visually impaired. With the method of notifying the traffic light, ordinary pedestrians may want to secure their own green light time, and may perform false push button operation too much, which may hinder the overall traffic light control operation . In short, there was a problem in that there was no method of accurately excluding false notifications to a traffic signal that a person with a walking disability is about to cross a road.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and uses a mobile phone (mobile station) that is rapidly spreading at present, and when a disabled person having this mobile station tries to cross a road, the mobile phone is automatically used. The mobile communication system recognizes a disabled person and performs a traffic signal control operation according to a pre-registered service class of the disabled person, thereby enabling a low-cost and accurate operation of the traffic signal control method and the traffic in the mobile communication system. It is intended to provide a signal control system.
[0008]
[Means for Solving the Problems]
[0010]
Further, another traffic signal control method and another traffic signal control system in the mobile communication system according to the present invention, in a traffic signal control method for a pedestrian crossing of a road through which a visually impaired person passes, a mobile station owned by the visually impaired person, A traffic signal base station having a service area only in the vicinity of a pedestrian crossing, a mobile communication system including one or more traffic signal base stations and a base station connected by a radio line, a mobile subscriber exchange, and a home location register; It is composed of a traffic light controller including a connected traffic light control unit and a speaker that can broadcast crossing guidance sound for the visually impaired,
When the mobile station enters the service area of the traffic signal base station, the mobile station sends a channel switching request to the traffic signal base station, and the traffic signal base station receives the channel switching request and receives the channel switching request via the base station. Means for sending a location registration request to the mobile subscriber exchange, wherein the mobile subscriber exchange receives the location registration request, and determines that the mobile station is visually impaired and that the visually impaired person having the mobile station is on the road. Means for recognizing that the user has entered a pedestrian crossing area, and said mobile switching center, after recognizing that a visually impaired person is going to cross the road, via said base station and said traffic signal base station. Means for transmitting a traffic light setting signal to the traffic light control unit, wherein the traffic light control unit receives the traffic light setting signal and causes the speaker of the traffic light to work in conjunction with the blue light of the pedestrian crossing. A traffic signal control system having means for broadcasting a user transverse guidance sound,
The means for recognizing that the mobile station is a visually impaired person, when registering a mobile station owned by the visually impaired person in advance in a mobile communication system, sets the service class of the subscriber data of the home location register to the visually impaired person. For this reason, the mobile subscriber exchange which has read the service class of the subscriber data recognizes that the mobile station is visually impaired.
[0011]
Further, another traffic signal control method and another traffic signal control system in the mobile communication system of the present invention, in a traffic signal control method for a pedestrian crossing a road through which a pedestrian has a disability, a mobile station owned by the pedestrian, A traffic signal base station having a service area only in the vicinity of a pedestrian crossing, a mobile communication system including one or more traffic signal base stations and a base station connected by a radio line, a mobile subscriber exchange, and a home location register; The traffic signal control unit is connected to the traffic signal control unit, and the traffic signal can adjust the green light time of the pedestrian crossing. When the mobile station enters the service area of the traffic signal base station, the mobile station sends a channel switching request to the traffic signal base station. Means, the traffic signal base station receives the channel switching request and sends the signal to the mobile subscriber exchange via the base station. Means for sending a location registration request, wherein the mobile subscriber exchange receives the location registration request and determines that the mobile station is a gait disabled person and that the pedestrian with a mobile station tries to cross the road at the crosswalk area. Means for recognizing that the user has entered the traffic light, and the mobile subscriber exchange recognizes that the walking disabled person is going to cross the road, and then sends a signal to the signal control unit via the base station and the signal base station. A traffic signal control system comprising: a means for transmitting a setting signal; and a means for receiving the signal setting signal and controlling the traffic signal to extend a green light time of a pedestrian crossing. Means for recognizing that the user is a walking disabled person, when registering a mobile station owned by the visually impaired person in advance in the mobile communication system, It has set up data service classes walking disabilities, and recognizes that the mobile station is a walking disability in the mobile subscriber exchange has read the service class of the subscriber data for this.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration block diagram of a mobile communication system according to the present invention. As shown in FIG. 1, the mobile communication system includes a mobile station (S-MS) 1 which is a mobile phone carried by a disabled person, and a traffic signal base station (S-BTS) connected to the S-MS 1 via a radio line. ) 2, a base station (BTS) 3 connected to the S-BTS 2 by a wireless line, a base station controller (BSC) 4 connected to the BTS 3 by a wired line, and a base station (BSC) 4 connected to the BSC 4 by a wired line. Mobile communication exchange (MSC) 5, a public telephone network (PSTN) 10 connected to the MSC 5 by a wire line, and a traffic signal control unit (S-CNT) 11 for performing various controls on traffic signals. The uplink radio frequency (control channel) between S-MS1 and S-BTS2 is F1, the downlink radio frequency (control channel) between S-MS1 and S-BTS2 is f1, and S-BTS2 and BT Between 3 uplink radio channel frequency (control channel) and F2, the downlink radio channel frequency (control channel) between the S-BTS2 and BTS3 is set to f2.
[0013]
A mobile communication switching system (MSC) 5 controls an interface between a mobile switching center (MLS) 6 that controls overall call processing for the mobile subscriber and a public telephone network (PSTN) 10 and a plurality of mobile subscribers. A mobile gateway transit exchange (MGS) 7 for performing control with the exchange, a home location storing subscriber data such as mobile subscriber class and service information relating to the mobile subscriber, and location information of the mobile subscriber; Register (HLR) 9 and the NO. 1 that controls various information transfer between the mobile subscriber exchange 6 and the mobile gateway exchange 7 and the home location register (HLR) 9. 7 common line signal device (NO. 7 STP) 8.
[0014]
FIG. 2 is a configuration block diagram of the traffic signal base station 2 shown in FIG. As shown in FIG. 2, the traffic signal base station 2 includes a mobile station antenna 20 that forms a radio line with the mobile station 1 owned by the disabled person, and a single antenna for transmitting and receiving operations with the mobile station. , A receiving unit 23 for receiving an uplink control channel F1 from a mobile station, and converting the received F1 into an uplink control channel F2 to a base station. A frequency converter 24 for converting the received downlink control channel f2 into a downlink control channel f1 to the mobile station, and a transmitter for amplifying the uplink control channel F2 to the base station, which is the output of the frequency converter 24, to a specified transmission power 25, a duplexer 26 for enabling transmission and reception operations with the base station to be performed by a single antenna, an antenna 21 for the base station constituting a radio line with the base station 3, and a base station. To Receiving section 27 for receiving the control channel f2, a transmitting section 28 for amplifying the downlink control channel f1 to the mobile station, which is the output of the frequency converting section 24, to a specified transmission power, and a signal setting signal received by the receiving section 27. And a signal control unit interface 29 for performing signal conversion and protocol control for sending the signal to the signal control unit.
[0015]
FIG. 3 is a configuration block diagram of the traffic light control unit 11 shown in FIG. As shown in FIG. 3, the traffic light control unit 11 uses a pushbutton switch 30 for a visually impaired person and an indicator light (signal) based on two input signals of the pushbutton switch signal and a traffic light setting signal from a traffic light base station. ) And a control circuit 31 for controlling the crossing guidance sound for the visually impaired, a switch circuit 32 for performing a switching operation of the indicator light (signal) and the crossing guidance sound for the visually impaired based on the output of the control circuit, and the switched display. It is composed of an indicator light driving circuit 33 for lighting operation of a light (signal), a speaker driving circuit 34 for sounding the switched visually induced person crossing guidance sound by a speaker, an indicator light (signal) 35, and a speaker 36. .
[0016]
FIG. 4 is an installation state image diagram showing an example in which the traffic light base station 2 shown in FIG. 2 and the traffic light control unit 11 shown in FIG. 3 are installed in the traffic light. As shown in FIG. 4, the antenna 21 for the base station is installed at the highest position of the traffic signal in order to ensure the radio link (F2, f2) with the base station 3, and the antenna for the mobile station is mounted on the road. In order to transmit and receive radio waves (F1, f1) only at the pedestrian crossing, antenna elements having downward and narrow directional characteristics are selected and adjusted and installed.
[0017]
Here, it should be particularly noted that the transmission output of radio waves radiated from the antenna for mobile stations is adjusted together with the adjustment of the directional characteristics of the antenna for mobile stations in order to make only the above pedestrian crossing a service area. Adjustment. This transmission output value is set to a transmission output as low as possible to eliminate interference with other communications, and to such a value that communication with a mobile station possessed by a handicapped person across the crosswalk can be established. FIG. 4 shows an example of the installation state of the housing of the traffic signal base station 2, the housing of the traffic light control unit 11, the indicator light 35, the speaker 36, and the push button switch 30 for the visually impaired, in addition to the traffic signal body. Have been.
[0018]
FIG. 5 is an installation state image diagram showing an example of a case where the format of the mobile station antenna shown in FIG. 4 is changed. As shown in FIG. 5, the antenna for mobile stations 20 is constituted by a plurality of planar antennas embedded on a pedestrian crossing, which is applied to a complicated pedestrian crossing. Although the form of the antenna for mobile station is shown in the form of FIG. 4 or the form of FIG. 5, it is not limited to this. When designing a signal base station, the range of the service area can be accurately realized. For this purpose, the above antenna type or another antenna type is appropriately selected.
[0019]
Next, the operation of the present invention will be described. First, the operation of the traffic signal base station shown in FIG. 2 will be described. The traffic signal base station 2 receives the downlink control channel f2 from the base station 3 via the antenna 21 for base stations and the duplexer 26 at the reception unit 27, and the frequency conversion unit 24 receives the f2 for the traffic signal base station. Convert to the downlink control channel f1. After the power of the f1 is amplified by the transmission unit 28, the radio wave is radiated to the vicinity of the pedestrian crossing via the duplexer 22 and the antenna 20 for mobile stations, thereby configuring the signal base station service area.
[0020]
Then, the traffic signal base station 2 transmits the uplink control channel F1 in various control operations such as the outgoing connection operation and the position registration operation from the mobile station 1 to the receiving unit 23 via the mobile station antenna 20 and the duplexer 22. The frequency conversion unit 24 converts the received F1 into a base station uplink control channel F2. Then, the power of the F2 is amplified by the transmission unit 25, and then the signal is notified to the base station 3 via the duplexer 26 and the base station antenna 21, thereby configuring a signal base station service area.
[0021]
Also, it is assumed that the following three conditions are set in advance on the mobile communication system side and the mobile station.
{Circle around (1)} In the setting at the time of construction of the traffic signal base station, the service area of the traffic signal base station (around the pedestrian crossing) is set to be a single location registration area for the traffic signal base station.
{Circle around (2)} The mobile subscriber exchange sets a service class according to each handicap in the subscriber data of the home location register when a mobile phone (mobile station) owned by a disabled person is registered in the mobile communication system in advance. . That is, in the visually impaired service class, when a registered subscriber crosses a road, a service for broadcasting a guidance sound for a disabled person in conjunction with a green signal at a pedestrian crossing is implemented. When a person crosses a road, a service is provided to ensure that the green light time of the pedestrian crossing is longer than usual.
{Circle around (3)} It is assumed that the mobile station owned by the disabled is powered on and is performing a standby operation.
[0022]
FIG. 6 is an overall operation sequence chart of the mobile communication system of the present invention. As shown in FIG. 6, when the mobile station 1 possessed by the handicapped comes in front of the pedestrian crossing to cross the road, it enters the service area of the traffic light base station (step A1). The mobile station 1 having entered the signal base station area sends a channel switching request signal to the signal base station 2 using the uplink control channel F1 in response to the change of the downlink control channel from f2 to f1 (step B1). Since the traffic signal base station service area constitutes a single location registration area, the traffic signal base station 2 that has received the channel switching request signal determines that the location registration needs to be changed, and transmits to the base station 3 using the uplink control channel F2. A position registration request signal is sent (step B2). The base station 3 having received the location registration request signal sends a location registration signal including the subscriber number of the mobile station 1 and the location registration area number of the traffic signal base station 2 to the mobile subscriber exchange 6 (step B3).
[0023]
Upon receiving the location registration signal, the mobile subscriber exchange 6 specifies the corresponding home location register 9 from the subscriber number of the mobile station 1 and determines the NO. 7, the home location register 9 is remotely accessed via the common line signaling device 8 to change and register the location registration area number on the subscriber data of the mobile station 1 to the number of the traffic signal base station 2, and the home location register 9 Inquire about the service class on the subscriber data (step B4). In the home location register 9, the traffic signal base station area number is stored in the location registration area on the subscriber data, the service class on the subscriber data is read (step A2), and the service class on the read subscriber data is read by the subscriber. The data is returned to the mobile subscriber exchange 6 as a response signal to the data inquiry (step B5). This service class is provided with classes for the visually impaired and the walking disabled.
[0024]
The mobile subscriber exchange 6 recognizes from the service class data and the signal base station area number that the disabled person has entered the signal area (step A3), and as a result, together with the response signal for transmitting the location registration signal, this service class. A signal setting command corresponding to the data is sent to the base station 3 (step B6). The base station 3 that has received the signal setting command sends a signal setting signal together with a position registration request response signal to the signal base station 2 using the downlink control channel f2 on the wireless channel (steps B7 and B8). The signal base station 2 that has received the signal setting signal receives the signal at the receiving unit 27 and sends the signal to the signal control unit 11 via the signal control unit interface 29. The traffic light control unit 11 inputs the received traffic light setting signal corresponding to the service class to the control circuit 31 configured by a timer, an indicator light control program, and the like. In the case of the traffic light setting signal corresponding to the service class of the visually impaired, The loudspeaker drive circuit 34 is operated via the switch circuit 32 in order to turn on the speaker at the same time as the operation of the pedestrian crossing indicator light switching to the green light, and the pedestrian crossing guidance sound interlocked with the pedestrian crossing green signal is output to the speaker. The control for broadcasting from 36 is performed. Further, in the case of a traffic light setting signal corresponding to a person with a walking disability, the control circuit 31 sets the green light time of the pedestrian crossing to a time longer than the normal green light time, sends the time signal to the switch circuit 32, and outputs the green signal of the pedestrian crossing. Control to extend the time. Then, the traffic signal base station 2 sends a channel switching request response signal to the mobile station 1 using the downlink control channel f1, and ends the processing (step B9).
[0025]
In addition, the broadcast of the pedestrian crossing guide sound and the pedestrian crossing green signal time extension operation are stopped at the same time as the green light of the pedestrian crossing changes to a red light after the disabled person crosses the road. If the disabled person stays near the pedestrian crossing, the broadcast of the visually impaired pedestrian guidance sound and the pedestrian crossing green signal time extension operation are continuously performed in conjunction with the green signal of the next pedestrian crossing.
[0026]
FIG. 7 is an example of a memory layout diagram in the home location register of the present invention. As shown in FIG. 7, when accessing the subscriber data 42 in the home location register 40, the subscriber number 41 is indexed. Then, there is an area of service class 43 in the subscriber data 42, and the disabled person class is registered in a specific bit in this area. In the example of FIG. 7, it is 1 for a visually impaired person and 2 for a walking disabled person. Note that the number of disabled person classes and data numerical values are merely examples, and can be increased as needed.
[0027]
【The invention's effect】
As described above, according to the present invention, a mobile phone (mobile station) possessed by a handicapped person having a handicap in visual communication and walking is used for mobile communication using a mobile phone that is currently spreading rapidly. When registering in the system, the service class according to each handicap is set in advance in the subscriber data of the home location register of the mobile communication system, and the mobile communication system informs that the disabled person has arrived near the crosswalk of the road. A traffic signal control method and a traffic signal control in a mobile communication system which can be operated inexpensively and accurately by recognizing and transmitting a traffic signal control signal corresponding to each handicap from the mobile communication system to the traffic signal. The realization of the system became possible.
[Brief description of the drawings]
FIG. 1 is an overall configuration block diagram of a mobile communication system according to the present invention.
FIG. 2 is a configuration block diagram of the traffic signal base station shown in FIG. 1 of the present invention.
FIG. 3 is a configuration block diagram of a traffic light control unit shown in FIG. 1 of the present invention.
4 is an installation state image diagram showing an example of a case where the traffic signal base station shown in FIG. 2 of the present invention and the traffic signal control unit shown in FIG. 3 are installed in the traffic signal.
5 is an installation state image diagram showing an example of a case where the format of the antenna for mobile stations shown in FIG. 4 of the present invention is changed.
FIG. 6 is an overall operation sequence chart of the mobile communication system of the present invention.
FIG. 7 is an example of a memory layout diagram in a home location register of the present invention.
[Explanation of symbols]
1 mobile station (S-MS)
2 Traffic signal base station (S-BTS)
3 Base station (BTS)
4 Base station controller (BSC)
5 Mobile Switching Center (MSC)
6. Mobile subscriber exchange (MLS)
7 Mobile gateway relay exchange (MGS)
8 NO. 7 common line signal device (NO.7STP)
9 Home location register (HLR)
10 Public telephone network (PSTN)
11 Traffic light controller (S-CNT)
Reference Signs List 20 antenna for mobile station 21 antenna for base station 22, 26 duplexer 23, 27 receiver 24 frequency converter 25, 28 transmitter 29 signal controller interface 30 pushbutton switch for visually impaired person 31 control circuit 32 switch Circuit 33 Indicator light drive circuit 34 Speaker drive circuit 35 Indicator light (signal)
36 speaker 40 home location register 41 subscriber number 42 subscriber data 43 service class

Claims

In traffic signal control system for pedestrian crossing on the road where visually impaired people pass,
A mobile station owned by a visually impaired person, a traffic signal base station that provides a service area only near the pedestrian crossing, a base station connected to one or more traffic signal base stations by radio lines, a mobile subscriber exchange, and a home location register Mobile communication system including a, a traffic light control unit connected to the traffic light base station, and a traffic signal including a speaker that can broadcast the visually impaired cross guidance sound,
When the mobile station enters the service area of the traffic signal base station, the mobile station sends a channel switching request to the traffic signal base station, and the traffic signal base station receives the channel switching request and receives the channel switching request via the base station. Means for sending a location registration request to the mobile subscriber exchange, wherein the mobile subscriber exchange receives the location registration request, and determines that the mobile station is visually impaired and that the visually impaired person having the mobile station is on the road. Means for recognizing that the user has entered a pedestrian crossing area, and said mobile switching center, after recognizing that a visually impaired person is going to cross the road, via said base station and said traffic signal base station. Means for transmitting a traffic light setting signal to the traffic light control unit, wherein the traffic light control unit receives the traffic light setting signal and causes the speaker of the traffic light to work in conjunction with the blue light of the pedestrian crossing. A traffic signal control system having means for broadcasting a user transverse guidance sound,
The means for recognizing that the mobile station is a visually impaired person, when registering a mobile station owned by the visually impaired person in advance in a mobile communication system, sets the service class of the subscriber data of the home location register to the visually impaired person. A traffic signal control system wherein a mobile station is recognized as being visually impaired in the mobile subscriber exchange which has read the service class of the subscriber data.

In a traffic signal control method for a pedestrian crossing on a road where a person with a walking disability passes,
A mobile station owned by a person with a walking disability, a traffic signal base station that provides a service area only near the pedestrian crossing, a base station connected to one or more traffic signal base stations by radio lines, a mobile subscriber exchange, and a home location register Mobile communication system including a, a traffic light control unit connected to the traffic light base station, and a traffic light that can adjust the green light time of the pedestrian crossing,
When the mobile station enters the service area of the traffic signal base station, the mobile station sends a channel switching request to the traffic signal base station, and the traffic signal base station receives the channel switching request and receives the channel switching request via the base station. Means for sending a location registration request to the mobile subscriber exchange, wherein the mobile subscriber exchange receives the location registration request and determines that the mobile station is a walking disabled person and that the walking disabled person having the mobile station is on the road. Means for recognizing that the user has entered the pedestrian crossing area to cross the road, and the mobile subscriber exchange recognizes that a person with a disability is about to cross the road, and then, via the base station and the traffic signal base station, Means for sending a traffic light setting signal to a traffic light control unit, and a means for receiving the traffic light setting signal and controlling the traffic light to extend the green light time of the pedestrian crossing. A traffic signal control system having a,
The means for recognizing that the mobile station is a walking disabled person, when registering a mobile station possessed by the visually impaired person in advance in a mobile communication system, sets the service class of the subscriber data of the home location register to the walking disabled person. A traffic signal control system which has been set and recognizes that the mobile station is a walking disabled person in the mobile subscriber exchange which has read the service class of the subscriber data.

A traffic signal control method for a pedestrian crossing on a road through which visually impaired people pass,
A mobile station owned by a visually impaired person, a traffic signal base station that provides a service area only near the pedestrian crossing, a base station connected to one or more traffic signal base stations by radio lines, a mobile subscriber exchange, and a home location register , A traffic signal control unit connected to the traffic signal base station, and a traffic signal including a speaker capable of broadcasting a visually impaired crossing guidance sound, wherein the mobile station enters a service area of the traffic signal base station. And the mobile station sends a channel switching request to the signaling base station, and the signaling base station receives the channel switching request, sends a location registration request to the mobile subscriber exchange via the base station, and The local exchange receives the location registration request and confirms that the mobile station is visually impaired and that the visually impaired person carrying the mobile station crosses the road. The mobile subscriber exchange recognizes that it has entered the pedestrian crossing area, and after recognizing that a visually impaired person is going to cross the road, the mobile switching center sends the signal to the traffic signal controller via the base station and the traffic light base station. A traffic signal control method for transmitting a traffic signal setting signal, wherein the traffic signal control unit receives the traffic signal setting signal and broadcasts a visually impaired crossing guide sound to a speaker of the traffic signal in conjunction with a pedestrian crossing green signal. ,
Recognizing that the mobile station is visually impaired, when registering the mobile station possessed by the visually impaired in advance in the mobile communication system, the service class of the subscriber data of the home location register to the walking impaired. A traffic signal control method comprising: setting a mobile station in a mobile subscriber exchange that has read a service class of subscriber data; and recognizing that the mobile station is visually impaired.

In a traffic signal control method for a pedestrian crossing on a road where a person with a walking disability passes,
A mobile station owned by a person with a walking disability, a traffic signal base station that provides a service area only near the pedestrian crossing, a base station connected to one or more traffic signal base stations by radio lines, a mobile subscriber exchange, and a home location register Mobile communication system including a, a traffic light control unit connected to the traffic light base station, and a traffic light that can adjust the green light time of the pedestrian crossing,
When the mobile station enters the service area of the traffic signal base station, the mobile station sends a channel switching request to the traffic signal base station, and the traffic signal base station receives the channel switching request and performs the mobile subscription via the base station. Sends a location registration request to the local exchange, and the mobile subscriber exchange receives the location registration request and determines that the mobile station is a walking disabled person and that a walking disabled person having a mobile station tries to cross the road. Recognizing that it has entered the pedestrian crossing area, the mobile switching center recognizes that the walking disabled person is going to cross the road, and then, through the base station and the traffic signal base station, to the traffic signal control unit. A traffic signal control method for transmitting a traffic light setting signal, wherein the traffic light control unit receives the traffic light setting signal and controls the traffic light to extend a green light time of a pedestrian crossing,
Recognizing that the mobile station is a walking disabled person, when registering the mobile station possessed by the walking disabled person in advance in the mobile communication system, the service class of the subscriber data of the home location register to the walking disabled person. A traffic signal control method comprising: setting a mobile station in a mobile subscriber exchange that has read a service class of subscriber data;