JPH0554294A - Intersection information communication device - Google Patents
Intersection information communication deviceInfo
- Publication number
- JPH0554294A JPH0554294A JP20957891A JP20957891A JPH0554294A JP H0554294 A JPH0554294 A JP H0554294A JP 20957891 A JP20957891 A JP 20957891A JP 20957891 A JP20957891 A JP 20957891A JP H0554294 A JPH0554294 A JP H0554294A
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- JP
- Japan
- Prior art keywords
- intersection
- information
- vehicle
- stationary
- traffic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は交差点の交通情報を報知
する交差点情報通信装置に関し、特に事故や渋滞等が発
生した場合の交差点の異常情報を、リアルタイムに周辺
の交差点近傍にある車両等に報知することのできる交差
点情報通信装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intersection information communication device for notifying traffic information of an intersection, and in particular, information about abnormalities of an intersection when an accident, a traffic jam or the like occurs is displayed in real time to a vehicle or the like near the intersection. The present invention relates to an intersection information communication device that can be notified.
【０００２】[0002]
【従来の技術】従来より、交差点等の混雑情報を報知す
るものとしては、ラジオの交通情報や道路に設置された
表示装置等種々ある。2. Description of the Related Art Conventionally, there are various kinds of information such as traffic information of a radio and a display device installed on a road as information for congestion information such as intersections.
【０００３】これは、路上のビーコン等によって収集さ
れた通行車両の速度情報等をいったん中央の交通情報セ
ンタに送って混雑情報を分析し、該分析結果をラジオ等
で報知したり、道路に所定間隔に設けられた表示装置等
に表示するものである。This is to send the speed information of the passing vehicles collected by beacons on the road to the central traffic information center to analyze the congestion information, and notify the analysis result by radio or the like, or to the road. The information is displayed on a display device or the like provided at intervals.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記の
如き従来の混雑情報の報知方式では、いったん現場で収
集した混雑情報等を一度中央の交通情報センタに送り、
再度交通情報センタから送出される情報に基いて周辺車
両等に報知されるので、迅速さに欠け、実際の道路状況
とラジオ等で報知される道路状況が異なり、例えば事故
が発生した交差点と比較的近い場所を走行している車両
等には有効な情報となっていないという不具合があっ
た。However, in the conventional congestion information notification system as described above, once the congestion information etc. collected at the site is sent to the central traffic information center,
Since it is notified to surrounding vehicles etc. again based on the information sent from the traffic information center, it is not quick, and the actual road condition and the road condition notified by radio etc. are different, for example compared with the intersection where the accident occurred There was a problem that the information was not valid for vehicles running in close proximity.
【０００５】また、上記の如き従来のシステムでは、交
通情報センタ等を利用した大規模な装置が必要なので、
インフラ整備に多額の資金を要するという不具合があっ
た。Further, since the conventional system as described above requires a large-scale device utilizing a traffic information center or the like,
There was a problem that a large amount of money was required for infrastructure development.
【０００６】この発明は、上記の如き従来の課題に鑑み
てなされたもので、その目的とするところは、交差点で
事故や渋滞が発生した場合、周囲を走行中の車両等にリ
アルタイムに事故情報等を報知でき、ドライバにとって
進行方向の交通状況を迅速に認識できるとともに、比較
的小規模の投資で実現できる交差点情報通信装置を提供
することにある。The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide real-time accident information to a vehicle or the like traveling around when an accident or a traffic jam occurs at an intersection. It is intended to provide an intersection information communication device which can notify the traffic situation in the traveling direction to the driver quickly and can be realized with a relatively small investment.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、請求項１の発明は、撮像手段等により交差点の交通
状況を監視する交差点状況監視部と、上記交差点状況監
視部で監視された交差点の監視状況から交差点の交通状
況を判断する交差点状況判断部と、上記交差点状況判断
部で交差点の交通状況の異常が検知された場合、この異
常情報を外部に送信するとともに、周辺の交差点の異常
情報を送受信する交差点情報送受信部と、上記交差点情
報送受信部で周辺の交差点の異常情報が受信されると、
この異常情報を出力する交差点情報報知部と、を有する
ことを特徴とする。In order to achieve the above object, the invention of claim 1 is monitored by an intersection situation monitoring section for monitoring the traffic situation of the intersection by an image pickup means and the like, and the intersection situation monitoring section. When an intersection traffic condition determination unit that determines the traffic conditions at an intersection from the intersection monitoring conditions and an abnormality in the traffic conditions at the intersection is detected by the intersection condition determination unit, this abnormality information is transmitted to the outside as well as the surrounding intersections. When the intersection information transmitting / receiving unit that transmits / receives the abnormality information and the abnormality information of the surrounding intersections are received by the intersection information transmitting / receiving unit,
And an intersection information notification unit that outputs this abnormality information.
【０００８】また、請求項２の発明は、上記交差点状況
判断部は、上記交差点状況監視部から送出された数フレ
ーム分の画像を比較する画像比較手段と、上記画像比較
手段の画像比較により交差点内に静止している車両を検
出する静止車両検出手段と、上記静止車両検出手段によ
って静止車両が検出された場合、静止車両の周辺の車両
の静止状態を判別する周辺車両静止状態判別手段と、を
有し、上記周辺車両静止状態判別手段によって静止車両
の周辺車両も一定時間以上静止している場合には交差点
で事故発生と判断するとともに、周辺車両の一定時間以
上の静止状態が検出されない場合は渋滞が発生している
と判断することを特徴とする。According to a second aspect of the present invention, the intersection situation determination unit compares the images of several frames sent from the intersection situation monitoring unit with the image comparison unit and the image comparison unit compares the intersections. Stationary vehicle detection means for detecting a stationary vehicle inside, and a peripheral vehicle stationary state determination means for determining a stationary state of a vehicle around the stationary vehicle when the stationary vehicle is detected by the stationary vehicle detection means, In the case where the surrounding vehicle stationary state determination means determines that an accident has occurred at an intersection when the surrounding vehicle of the stationary vehicle is also stationary for a certain period of time or more, and the stationary state of the surrounding vehicle is not detected for a certain period or more. Is characterized by determining that congestion is occurring.
【０００９】[0009]
【作用】請求項１の発明では、交差点状況監視部によっ
て常に交差点の交通状況を監視し、交差点状況判断部で
はこの監視結果を分析することによって、事故や渋滞等
が発生したか否か判断する。According to the first aspect of the invention, the traffic condition of the intersection is constantly monitored by the intersection condition monitoring unit, and the intersection condition judging unit analyzes the monitoring result to judge whether or not an accident, a traffic jam or the like has occurred. ..
【００１０】そして、事故や渋滞等が発生した場合に
は、交差点情報送受信部より外部にこの交差点情報を送
信するとともに、さらにこの交差点情報送受信部では外
部から送信されてくる周辺の交差点情報を受信し、交差
点情報報知部より周囲の車両や人に報知する。従って、
交差点での事故や渋滞情報はリアルタイムに周辺の交差
点近傍にいる車両や人に報知できることになる。When an accident or a traffic jam occurs, the intersection information transmission / reception unit transmits the intersection information to the outside, and the intersection information transmission / reception unit further receives the surrounding intersection information transmitted from the outside. Then, the intersection information notification unit notifies the surrounding vehicles and people. Therefore,
Information on accidents and traffic jams at intersections can be notified to vehicles and people near the intersections in real time in real time.
【００１１】また、請求項２の発明では、交差点状況監
視部から送出される数フレーム分の画像を画像比較手段
で比較し、静止車両検出手段で同一場所にある車両、す
なわち静止している車両があるか否かを調べる。According to the second aspect of the present invention, the images of several frames sent from the intersection situation monitoring unit are compared by the image comparison unit, and the vehicle at the same place by the stationary vehicle detection unit, that is, the stationary vehicle. Check if there is.
【００１２】そして、静止している車両が検出される
と、さらに監視が継続され、周辺車両静止状態判別手段
で周辺車両も一定時間以上静止しているか否かが調べら
れ、一定時間以上静止している場合には事故発生と判断
するとともに、一定時間以上静止していない場合には渋
滞発生と判断する。When a stationary vehicle is detected, the monitoring is further continued, and the peripheral vehicle stationary state judging means checks whether or not the peripheral vehicle is stationary for a certain period of time or more. If it is present, it is determined that an accident has occurred, and if it has not been stationary for a certain period of time, it is determined that congestion has occurred.
【００１３】[0013]
【実施例】以下、本発明を図面に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
【００１４】図１は本発明が適用された実施例の全体的
な構成を示すブロック図である。FIG. 1 is a block diagram showing the overall construction of an embodiment to which the present invention is applied.
【００１５】同図において、１０は交差点情報通信装置
で、例えば、図３に示す如く、各交差点Ａ，Ｂ，Ｃに設
置された信号機ａ1 〜ｃ4 内に内蔵され、交差点状況監
視部１、交差点状況判断部２、交差点情報送受信部３お
よび交差点情報報知部４より構成される。In the figure, 10 is an intersection information communication device, for example, as shown in FIG. 3, it is built in the traffic signals a 1 to c 4 installed at each intersection A, B, C, and the intersection condition monitoring unit 1 is installed. , An intersection status determination unit 2, an intersection information transmission / reception unit 3, and an intersection information notification unit 4.
【００１６】ここで、交差点状況監視部１はＴＶカメラ
等の撮像手段よりなり、交差点内の車両の移動状況を監
視するものである。Here, the intersection situation monitoring unit 1 is composed of an image pickup means such as a TV camera, and monitors the movement situation of the vehicle inside the intersection.
【００１７】また、交差点状況判断部２は、上記交差点
状況監視部１から送出される画像データに基づいて交差
点内の交通状況を判断するものである。Further, the intersection situation judging section 2 judges the traffic situation in the intersection based on the image data sent from the intersection situation monitoring section 1.
【００１８】また、交差点情報送受信部３は、上記交差
点状況判断部２によって事故や渋滞等の交差点内の異常
が検出された場合、この異常情報を周辺を走行中の車両
に搭載されている車載側受信装置２０や周囲の交差点の
信号機内に設けられている交差点情報通信装置１０内の
交差点情報送受信部３に送信するものである。なお、こ
の交差点情報送受信部３は周囲の交差点に設けられてい
る交差点情報通信装置１０の交差点情報送受信部３から
の交差点情報を受信することもできる。Further, when the intersection status judging section 2 detects an abnormality in the intersection such as an accident or a traffic jam, the intersection information transmitting / receiving section 3 carries this abnormality information on a vehicle mounted on a vehicle traveling in the vicinity. It transmits to the intersection information transmission / reception part 3 in the intersection information communication apparatus 10 provided in the side receiving device 20 and the traffic signal of the surrounding intersection. The intersection information transmitting / receiving unit 3 can also receive the intersection information from the intersection information transmitting / receiving unit 3 of the intersection information communication device 10 provided at the surrounding intersections.
【００１９】つぎに、交差点情報報知部４は、例えばＣ
ＲＴ等の表示装置よりなり、交差点情報受信部３が周囲
の交差点情報を受信した場合、その交差点情報を画面上
に表示するものである。Next, the intersection information notifying unit 4, for example, C
It is composed of a display device such as an RT, and when the intersection information receiving unit 3 receives information about surrounding intersections, the intersection information is displayed on the screen.
【００２０】以上が本実施例の構成であるが、次にその
動作を図２に示したフローチャートに基づいて説明す
る。The configuration of this embodiment has been described above. Next, the operation will be described with reference to the flow chart shown in FIG.
【００２１】まず、交差点内を映しているＴＶカメラ等
よりなる交差点状況監視部１により交差点内の画像取り
込み処理が行なわれると（ステップ１００）、所定の短
時間間隔で収集された数フレーム分の画像比較が行なわ
れる（ステップ１１０）。First, when the image of the inside of the intersection is captured by the intersection status monitoring unit 1 including a TV camera or the like showing the inside of the intersection (step 100), several frames collected at a predetermined short time interval. Image comparison is performed (step 110).
【００２２】そして、つづくステップ１２０の処理で
は、上記数フレーム分の画像比較により、交差点内の同
一位置にある車両、すなわち静止している車両があるか
否かが調べられる。Then, in the processing of step 120, whether or not there is a vehicle at the same position in the intersection, that is, a stationary vehicle, is checked by comparing the images of the above-mentioned several frames.
【００２３】ここで、ステップ１２０でＮｏの場合、す
なわち交差点内に静止している車両がない場合は、スム
ーズに車が流れている場合と考えられるので再びステッ
プ１００の処理にもどり、交差点内の監視が継続される
ことになる。Here, in the case of No at step 120, that is, when there is no stationary vehicle at the intersection, it is considered that the vehicle is flowing smoothly. Therefore, the process returns to step 100 and the inside of the intersection is restarted. Monitoring will continue.
【００２４】一方、ステップ１２０でＹＥＳの場合、さ
らにステップ１２０の処理で検出された静止車両の周辺
の車両の静止状態が調べられる（ステップ１３０）。On the other hand, if YES in step 120, the stationary state of the vehicle around the stationary vehicle detected in the process of step 120 is further checked (step 130).
【００２５】ここで、周辺の車両も一定時間以上静止し
ている場合（ステップ１３０でＹＥＳ）、複数の車両が
交差点内に一定時間以上静止している場合なので、交差
点内で事故発生と判断する（ステップ１４０）。Here, if the surrounding vehicles are also stationary for a certain time or longer (YES in step 130), it is determined that a plurality of vehicles have been stationary in the intersection for a certain time or longer, so that an accident occurs at the intersection. (Step 140).
【００２６】一方、ステップ１３０でＮｏの場合、すな
わち一定時間以上の複数の車両の静止状態が検出されな
い場合、単に交差点内において短時間静止する車両が検
出された場合に過ぎないので、交差点周囲に渋滞発生と
判断する（ステップ１５０）。On the other hand, in the case of No in step 130, that is, when the stationary state of a plurality of vehicles for a predetermined time or more is not detected, it is merely the case where a vehicle that is stationary for a short time is detected in the intersection, so that the area around the intersection is detected. It is determined that a traffic jam has occurred (step 150).
【００２７】そして、ステップ１４０の事故発生情報や
ステップ１５０の渋滞発生情報は、交差点情報送受信部
３より周辺に電波で発信され、車両に搭載された車載側
受信装置２０や周囲の交差点の信号機内に設けられた交
差点情報通信装置１０内の交差点情報送受信部３で受信
されることになる。Then, the accident occurrence information in step 140 and the traffic jam occurrence information in step 150 are transmitted by radio waves from the intersection information transmitting / receiving section 3 to the surroundings, and the on-vehicle receiving device 20 mounted on the vehicle and the traffic signals of the surrounding intersections. The information is received by the intersection information transmission / reception unit 3 in the intersection information communication device 10 provided in.
【００２８】すなわち、例えば図３に示す如く、交差点
Ａの信号機ａ1 で交差点Ａ内の事故情報が検出される
と、周辺の交差点Ｂ，Ｃ等に設けた信号機ｂ1 〜ｂ4 、
ｃ1 〜ｃ4 内の交差点情報通信装置１０の交差点情報送
受信部３で受信されることになる。That is, for example, as shown in FIG. 3, when the traffic information a 1 at the intersection A detects the accident information at the intersection A, the traffic signals b 1 to b 4 provided at the surrounding intersections B and C,
The information is received by the intersection information transmitting / receiving unit 3 of the intersection information communication device 10 in c 1 to c 4 .
【００２９】そして、これら受信された事故情報等は、
該通信装置内の交差点情報報知部４に表示されることに
なる。なお、報知部４は信号機の支柱側部のドライバ等
の目視しやすい位置に設けるとよい。Then, the received accident information and the like are
The information is displayed on the intersection information notification unit 4 in the communication device. It should be noted that the notification unit 4 may be provided at a position where a driver or the like on the side of the pillar of the traffic signal can easily see.
【００３０】これにより、周囲を走行中の車両や歩行者
は、近傍の交差点における事故情報等をリアルタイムに
知ることができることになる。As a result, a vehicle or a pedestrian traveling around can know the accident information and the like at a nearby intersection in real time.
【００３１】また、また車載側受信装置２０を搭載した
車両も、周囲の交差点の事故情報等をリアルタイムに知
ることができることになる。Further, the vehicle equipped with the on-vehicle receiver 20 can also know the accident information of the surrounding intersections in real time.
【００３２】なお、以上の説明では、ある交差点で事故
等が発生した場合は、この事故等を検出した交差点情報
通信装置１０の交差点情報送受信部３より周囲に電波で
事故情報を送信するようにしたが、例えば、図３に示す
如く、交差点Ａで事故が発生して信号機ａ1 でこれを検
出した場合、ａ1 からは交差点Ｂの信号機ｂ2 ，ｂ3 ，
ｂ4 と交差点Ｃの信号機ｃ1 ，ｃ3 に直接事故情報を送
出するが、交差点Ｂの信号機ｂ1 にはｂ2 を介して、ま
た交差点Ｃの信号機ｃ2 ，ｃ4 にはｃ1 ，ｃ3 を介して
送出するようにしてもよい。そして、さらに隣接する交
差点の信号機（例えばｄ1 やｄ2 ）に順次送出するよう
にすることもできる。このような構成によれば、各交差
点情報通信装置１０の電波送信能力が低い場合でも、か
なり広いエリアの交差点に事故情報を送信できることに
なる。In the above description, when an accident or the like occurs at a certain intersection, the intersection information transmitting / receiving unit 3 of the intersection information communication device 10 which has detected the accident or the like transmits the accident information to the surroundings by radio waves. but was, for example, as shown in FIG. 3, if an accident at the intersection a detects this in traffic a 1 occurs, traffic signal b 2 intersection B from a 1, b 3,
b 4 a traffic signal c 1 intersection C, and sends the direct accident information to c 3, the traffic signal b 1 intersection B via the b 2, also the traffic c 2, c 4 intersection C c 1, it may be sent via the c 3. Then, the signals may be sequentially sent to traffic signals (for example, d 1 and d 2 ) at adjacent intersections. According to such a configuration, even when the radio wave transmission capability of each intersection information communication device 10 is low, it is possible to transmit the accident information to the intersections in a considerably wide area.
【００３３】以上のように、本実施例では、ある交差点
で事故情報や渋滞情報が検出された場合、交差点情報通
信装置１０の交差点情報送受信部３より事故情報等を周
囲に送信し、これらの情報は隣接する交差点や周囲の交
差点に設けられた交差点情報通信装置１０の交差点情報
送受信部３で受信されてリアルタイムに交差点情報報知
部４に表示できるとともに、車載側受信装置２０でも受
信できるようにしたので、迅速に周辺車両や歩行者に事
故情報等を報知できることになる。As described above, in the present embodiment, when the accident information or the traffic jam information is detected at a certain intersection, the accident information or the like is transmitted from the intersection information transmitting / receiving unit 3 of the intersection information communication device 10 to the surroundings. The information is received by the intersection information transmission / reception unit 3 of the intersection information communication device 10 provided at an adjacent intersection or a surrounding intersection and can be displayed on the intersection information notification unit 4 in real time, and can also be received by the in-vehicle reception device 20. Therefore, it is possible to promptly inform the surrounding vehicles and pedestrians of accident information and the like.
【００３４】また、これらの事故情報は、各交差点に設
置した交差点情報通信装置１０間の信号受授で行なえる
ので、従来のように交通情報センタ等を利用した大規模
なインフラ投資を必要とせず、比較的低コストにこの種
装置を得ることができるという効果を有する。Further, since these accident information can be transmitted and received by signals between the intersection information communication devices 10 installed at each intersection, large-scale infrastructure investment using a traffic information center or the like is required as in the past. In addition, there is an effect that this kind of device can be obtained at a relatively low cost.
【００３５】[0035]
【発明の効果】以上説明したように、この発明では、設
けた撮像手段等により交差点の交通状況を監視する交差
点状況監視部と、上記交差点状況監視部で監視された交
差点の監視状況から交差点の交通状況を判断する交差点
状況判断部と、上記交差点状況判断部で交差点の交通状
況の異常が検知された場合、この異常情報を外部に送信
するとともに、周辺の交差点の異常情報を送受信する交
差点情報送受信部と、上記交差点情報送受信部で周辺の
交差点の異常情報が受信されると、この異常情報を出力
する交差点情報報知部とを設けたので、交差点で事故や
渋滞が発生した場合は、周囲を走行中の車両等にリアル
タイムに事故情報を報知でき、しかも従来に比して小規
模な投資でこの種装置を得ることができるという効果を
有する。As described above, according to the present invention, an intersection condition monitoring unit for monitoring the traffic condition of the intersection by the provided image pickup means and the intersection monitoring condition monitored by the intersection condition monitoring unit is used to detect the intersection. Intersection information that determines the traffic condition and the above-mentioned intersection condition determination unit detects abnormalities in the traffic conditions at the intersection, and transmits this abnormality information to the outside as well as the information about the surrounding intersections. Since the transmitter / receiver and the intersection information transmitter / receiver are provided with the intersection information notification unit that outputs the abnormality information when the intersection information transmitter / receiver receives the abnormal information of the surrounding intersections, if an accident or a traffic jam occurs at the intersection, The present invention has an effect that accident information can be notified to a vehicle or the like that is traveling in real time in real time, and that this type of device can be obtained with a small investment as compared with the related art.
【図１】本発明が適用された実施例の構成を示すブロッ
ク図。FIG. 1 is a block diagram showing a configuration of an embodiment to which the present invention is applied.
【図２】図１に示した実施例装置の動作を示すフローチ
ャート。2 is a flowchart showing the operation of the apparatus of the embodiment shown in FIG.
【図３】図１に示した実施例装置が交差点の信号機に設
けられた場合の説明図。FIG. 3 is an explanatory view when the apparatus of the embodiment shown in FIG. 1 is installed in a traffic signal at an intersection.
１ 交差点状況監視部 ２ 交差点状況判断部 ３ 交差点情報送受信部 ４ 交差点情報報知部 １０ 交差点情報通信装置 ２０ 車載側受信装置 Ａ，Ｂ，Ｃ 交差点 ａ1 、ｂ1 〜ｂ4 、ｃ1 〜ｃ4 、ｄ1 ，ｄ2 信号機1 intersection state monitor 2 intersection situation determination unit 3 intersection information receiving unit 4 intersection information notification unit 10 intersection information communication device 20 vehicle-side reception device A, B, C intersection a 1, b 1 ~b 4, c 1 ~c 4 , D 1 and d 2 traffic lights
Claims (2)
視する交差点状況監視部と、 上記交差点状況監視部で監視された交差点の監視状況か
ら交差点の交通状況を判断する交差点状況判断部と、 上記交差点状況判断部で交差点の交通状況の異常が検知
された場合、この異常情報を外部に送信するとともに、
周辺の交差点の異常情報を送受信する交差点情報送受信
部と、 上記交差点情報送受信部で周辺の交差点の異常情報が受
信されると、この異常情報を出力する交差点情報報知部
と、 を有することを特徴とする交差点情報通信装置。1. An intersection condition monitoring unit for monitoring the traffic condition of the intersection by an image pickup means, and an intersection condition judging unit for judging the traffic condition of the intersection from the monitoring condition of the intersection monitored by the intersection condition monitoring unit, When the intersection situation determination unit detects an abnormality in the traffic situation at the intersection, it sends this abnormality information to the outside and
An intersection information transmission / reception unit that transmits / receives abnormality information of a surrounding intersection, and an intersection information notification unit that outputs the abnormality information when the abnormality information of the surrounding intersection is received by the intersection information transmission / reception unit. Intersection information communication device.
像を比較する画像比較手段と、 上記画像比較手段の画像比較により交差点内に静止して
いる車両を検出する静止車両検出手段と、 上記静止車両検出手段によって静止車両が検出された場
合、静止車両の周辺の車両の静止状態を判別する周辺車
両静止状態判別手段と、を有し、 上記周辺車両静止状態判別手段によって静止車両の周辺
車両も一定時間以上静止している場合には交差点で事故
発生と判断するとともに、周辺車両の一定時間以上の静
止状態が検出されない場合は渋滞が発生していると判断
することを特徴とする請求項１に記載の交差点情報通信
装置。2. The intersection situation judging section compares the images of several frames sent from the intersection situation monitoring section with an image comparing means, and a vehicle stationary in the intersection by comparing the images of the image comparing means. And a peripheral vehicle stationary state determining means for determining a stationary state of a vehicle around the stationary vehicle when the stationary vehicle is detected by the stationary vehicle detection means. The stationary state determination means determines that an accident has occurred at the intersection when a vehicle around the stationary vehicle is also stationary for a certain period of time or more, and a traffic jam occurs when the stationary state of the surrounding vehicle is not detected for a certain period of time or more. The intersection information communication device according to claim 1, wherein the intersection information communication device is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20957891A JPH0554294A (en) | 1991-08-21 | 1991-08-21 | Intersection information communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20957891A JPH0554294A (en) | 1991-08-21 | 1991-08-21 | Intersection information communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0554294A true JPH0554294A (en) | 1993-03-05 |
Family
ID=16575157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20957891A Withdrawn JPH0554294A (en) | 1991-08-21 | 1991-08-21 | Intersection information communication device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0554294A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997025700A1 (en) * | 1996-01-12 | 1997-07-17 | Sumitomo Electric Industries, Ltd. | Traffic congestion measuring method and apparatus and image processing method and apparatus |
| US6188778B1 (en) | 1997-01-09 | 2001-02-13 | Sumitomo Electric Industries, Ltd. | Traffic congestion measuring method and apparatus and image processing method and apparatus |
| JP2001184593A (en) * | 1999-12-24 | 2001-07-06 | Hitachi Ltd | Road traffic system |
| JP2007086981A (en) * | 2005-09-21 | 2007-04-05 | Kyosan Electric Mfg Co Ltd | Traffic control information transmitting device, traffic control information notifying device, and traffic control system |
| WO2007088787A1 (en) * | 2006-02-01 | 2007-08-09 | Mitsubishi Electric Corporation | Applied service providing device and road-to-vehicle communication system using this applied service providing device |
| JP2017091244A (en) * | 2015-11-11 | 2017-05-25 | 株式会社京三製作所 | Traffic signal system |
| KR20180077883A (en) * | 2016-12-29 | 2018-07-09 | 주식회사 성우모바일 | vehicle control system linked to traffic signal |
-
1991
- 1991-08-21 JP JP20957891A patent/JPH0554294A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997025700A1 (en) * | 1996-01-12 | 1997-07-17 | Sumitomo Electric Industries, Ltd. | Traffic congestion measuring method and apparatus and image processing method and apparatus |
| US5999635A (en) * | 1996-01-12 | 1999-12-07 | Sumitomo Electric Industries, Ltd. | Traffic congestion measuring method and apparatus and image processing method and apparatus |
| US6075874A (en) * | 1996-01-12 | 2000-06-13 | Sumitomo Electric Industries, Ltd. | Traffic congestion measuring method and apparatus and image processing method and apparatus |
| US6188778B1 (en) | 1997-01-09 | 2001-02-13 | Sumitomo Electric Industries, Ltd. | Traffic congestion measuring method and apparatus and image processing method and apparatus |
| JP2001184593A (en) * | 1999-12-24 | 2001-07-06 | Hitachi Ltd | Road traffic system |
| JP2007086981A (en) * | 2005-09-21 | 2007-04-05 | Kyosan Electric Mfg Co Ltd | Traffic control information transmitting device, traffic control information notifying device, and traffic control system |
| JP4676851B2 (en) * | 2005-09-21 | 2011-04-27 | 株式会社京三製作所 | Traffic control system |
| WO2007088787A1 (en) * | 2006-02-01 | 2007-08-09 | Mitsubishi Electric Corporation | Applied service providing device and road-to-vehicle communication system using this applied service providing device |
| JPWO2007088787A1 (en) * | 2006-02-01 | 2009-06-25 | 三菱電機株式会社 | Applied service providing apparatus and road-to-vehicle communication system using the applied service providing apparatus |
| JP4884400B2 (en) * | 2006-02-01 | 2012-02-29 | 三菱電機株式会社 | Applied service providing apparatus and road-to-vehicle communication system using the applied service providing apparatus |
| JP2017091244A (en) * | 2015-11-11 | 2017-05-25 | 株式会社京三製作所 | Traffic signal system |
| KR20180077883A (en) * | 2016-12-29 | 2018-07-09 | 주식회사 성우모바일 | vehicle control system linked to traffic signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19981112 |