JP3458156B2 - Road-vehicle communication monitoring system - Google Patents
Road-vehicle communication monitoring systemInfo
- Publication number
- JP3458156B2 JP3458156B2 JP2001065793A JP2001065793A JP3458156B2 JP 3458156 B2 JP3458156 B2 JP 3458156B2 JP 2001065793 A JP2001065793 A JP 2001065793A JP 2001065793 A JP2001065793 A JP 2001065793A JP 3458156 B2 JP3458156 B2 JP 3458156B2
- Authority
- JP
- Japan
- Prior art keywords
- road
- vehicle
- communication
- roadside
- vehicle communication
- 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.)
- Expired - Lifetime
Links
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- Traffic Control Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、道路状況を路側
の装置が車両に無線で送信し、車載端末がドライバに情
報提供または操作支援等のサービスを行う走行支援シス
テムに用いられる、路車間の通信異常を監視する路車間
通信の監視システムに関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roadside device wirelessly transmitting road conditions to a vehicle, and an in-vehicle terminal sends information to a driver.
Roadside-vehicle distance monitoring for communication abnormality between roadside-vehicle used for driving support system that provides services such as information provision or operation support
Communication monitoring system.
【０００２】[0002]
【発明が解決しようとする課題】道路上の落下物や、故
障車両等の障害物の情報や、交差点における接近車両情
報等の情報をドライバに通知する走行支援システムは、
路側の通信装置から無線による路車間通信で走行中の車
両に情報を送信し、車載端末がドライバにサービスを提
供する。DISCLOSURE OF INVENTION Problems to be Solved by the Invention A traveling support system for informing a driver of information such as a fallen object on a road, an obstacle such as a broken vehicle, and information about an approaching vehicle at an intersection is
Information is transmitted from a roadside communication device to a running vehicle by wireless road-to-vehicle communication, and an in-vehicle terminal provides a service to a driver.
【０００３】走行支援システムの一例を図２に示す。走
行支援システムは、道路上の障害物や車両を検知するた
めの衝害物センサ、車両に送信する情報内容を作成する
路側処理装置、車両に通信を行うための路側通信装置と
基地局、サービスの状況を運用オペレータに通知しサー
ビスの開始・終了を行うセンタ装置から構成される。図
２の走行支援システムでは、サービス中に故障等の原因
で道路に停止中の車両をセンサが検知し、センサ情報を
集約して道路の線形情報をもとに車両の位置情報や車線
情報を加えた路車間通信の通信内容を路側処理装置が作
成し、路側通信装置が走行中の車両の車載端末に無線通
信で通知する。車載端末は、表示や音声によりドライバ
に前方に停止車両があることを伝達する。An example of a driving support system is shown in FIG. The driving support system includes an obstacle sensor for detecting obstacles and vehicles on the road, a roadside processing device for creating information contents to be transmitted to the vehicle, a roadside communication device and base station for communicating with the vehicle, and a service. It is composed of a center device that notifies the operation operator of the situation of 1) and starts and ends the service. Figure
In the driving support system of 2, the sensor detects a vehicle stopped on the road due to a failure during service, collects sensor information, and adds vehicle position information and lane information based on road linear information. The roadside processing device creates the communication contents of the road-to-vehicle communication, and notifies the onboard terminal of the vehicle on which the roadside communication device is traveling by wireless communication. The vehicle-mounted terminal notifies the driver that there is a stopped vehicle ahead by displaying or sounding.
【０００４】通信装置は、広範囲の車両に情報提供を行
うため１台のアンテナでは、全ての区間をカバーするこ
とは困難である。そのためサービス区間を複数の通信区
間に別け、路側通信装置から離れた場所に設置された複
数の基地局から同一の情報を送信する構成となる。Since the communication device provides information to a wide range of vehicles, it is difficult for one antenna to cover all the sections. Therefore, the service section is divided into a plurality of communication sections, and the same information is transmitted from a plurality of base stations installed at a location distant from the roadside communication device.
【０００５】上述のような走行支援システムにおいて
は、路車間通信の通信途絶や送信データのミス等が発生
すると、道路上の障害物が通知されなかったり、一部通
信区間の通信途絶により情報提供が遅れたりすることに
より、ドライバへの判断ミスを誘発して直接的に事故に
つながる可能性が生じる。そのため路車間通信が正常に
行われているか監視し、走行支援システムの信頼性を向
上させることが重要となる。In the driving support system as described above, when a communication interruption of road-to-vehicle communication or a transmission data error occurs, an obstacle on the road is not notified, or information is provided due to communication interruption in a part of the communication section. The delay may cause a driver to make a mistake in judgment and directly lead to an accident. Therefore, it is important to monitor whether road-to-vehicle communication is normally performed and improve the reliability of the driving support system.
【０００６】一般的な路車間通信の監視方法としては、
路側処理装置が基地局の異常信号を常時監視し、異常が
ないか監視を行っている。しかしながら、この方法で
は、基地局の動作が正常であることがわかっても、例え
ば路側アンテナの物理的損傷・劣化による路車間通信の
途絶や、電波状況の悪化による通信障害を検出すること
はできないという問題がある。[0006] As a general method for monitoring road-to-vehicle communication,
The roadside processing device constantly monitors the base station for abnormal signals and monitors for abnormalities. However, with this method, even if the operation of the base station is known to be normal, it is not possible to detect, for example, interruption of roadside-vehicle communication due to physical damage or deterioration of the roadside antenna, or communication failure due to deterioration of radio wave conditions. There is a problem.
【０００７】また路車間通信を確実に行う手段として、
車両が路側からの通信を受信した際に、車載端末から応
答を返す双方向通信方式がある。以下に、通信確立手順
の１例を示す。車載端末が路側通信装置からの信号を受
信すると、車載端末は応答として車両個別のＩＤ番号を
返信し、路側の装置で路車間通信が正常か確認すること
ができる。連続する路車間通信区間において、車両が通
信を確立している履歴をチェックし、途中の区間におい
て路車間通信の確立ができていないことを検出すれば路
車間通信が異常であることを検出することができる。し
かしながらこの方式では、路車間通信の確立が検出でき
ない場合に、路車間通信が異常であるのか、車両の通行
がないのかが区別できず、また車両が通行するまでは通
信の異常が検出できないという問題が残る。[0007] As means for performing inter-road-vehicle communication reliably,
There is a two-way communication system in which when a vehicle receives communication from the roadside, a response is returned from an in-vehicle terminal. Below, an example of a procedure for establishing communication is shown. When the vehicle-mounted terminal receives the signal from the roadside communication device, the vehicle-mounted terminal returns a vehicle-specific ID number as a response, and the roadside device can confirm whether the road-vehicle communication is normal. In successive road-vehicle communication section, check the history of the vehicle has established communications with, detects that the abnormality detection by if the road-vehicle communication that have failed establishment of road-vehicle communication in the middle of the section be able to. However, in this method, when the establishment of road-to-vehicle communication can not be detected, or the road-vehicle communication that is abnormal, indistinguishable whether there is no passage of vehicles, also until the vehicle traffic can not detect abnormality in the communication The problem remains.
【０００８】[0008]
【課題を解決するための手段】このような問題を解決す
るために、道路上に受信機を設置して実際に送信してい
るデータを受信し、路側処理装置からのデータと比較し
て異常がないが判断する方式により路車間通信の監視ス
テムを考案した。In order to solve such a problem, a receiver is installed on the road to receive the data that is actually transmitted, and the data is compared with the data from the roadside processing device to detect an abnormality. We have devised a monitoring system for road-to-vehicle communication based on a method that determines whether there is no communication.
【０００９】本路車間通信監視システムは、路側処理装
置から出力された路車間通信の送信データを、監視用受
信機が受信しているかを定期的に監視することにより、
走行支援システムを構成する路側処理装置、路側通信装
置、基地局の各機器の異常、路車間通信のアンテナに起
因する路車間通信異常や電波状況の悪化等の要因によ
り、車載端末が電波を受信せずにサービス停止の状態に
あることを確実に検出する。しかも、監視周期を短時間
に設定することにより、サービスの停止を迅速に検出で
きる。また、路側処理装置から出力される通信内容と監
視用受信機が受信した通信内容が同一であることを定期
的に確認することにより、路側通信装置や基地局の機器
の異常により情報の欠落が発生した場合にも容易に検知
することが可能となる。[0009] The road-vehicle communication monitoring system, the transmission data of the output road-vehicle communication from the roadside apparatus, by periodically monitoring whether monitoring receiving <br/> signal is receiving,
Roadside processing apparatus constituting the driving support system, roadside communication device, the abnormality of the devices of the base station, due to factors such as poor road-vehicle communication abnormality and radio conditions due to the antenna of the road-to-vehicle communication, vehicle-mounted terminal is receiving radio waves Without detecting the service is surely detected. Moreover, by setting the monitoring cycle to be short, it is possible to quickly detect the stoppage of the service. In addition, by periodically confirming that the communication content output from the roadside processing device and the communication content received by the monitoring receiver are the same, information is lost due to an abnormality in the roadside communication device or the equipment of the base station. Even if it occurs, it can be easily detected.
【００１０】しかしながら全ての路車間通信の区間に監
視用受信機を設置し、その情報を監視装置に伝達するた
めの通信路を設置すると、多くの機器が必要となる。そ
こで前記の方式と双方向通信とによる通信確立の確認を
併用し、監視用受信機の台数を削減する。具体的にはサ
ービスの最初の通信区間において、道路上に監視用受信
機を設置し、路車間通信の状況を監視する。そして２番
目以降の通信区間においては、双方向通信により通信確
立の履歴をチェックし、途中の区間において路車間通信
の確立ができていないことを検出すれば、路車間通信が
異常であることを検出することができる。これによって
１台の監視用受信機のみで、確実にサービス停止を検出
することが可能になる。However, if a monitoring receiver is installed in all road-to-vehicle communication sections and a communication path for transmitting the information to the monitoring device is installed, many devices are required. Therefore, the number of monitoring receivers is reduced by using the above method and confirmation of communication establishment by bidirectional communication together. Specifically, in the first communication section of the service, a monitoring receiver is installed on the road to monitor the road-vehicle communication status. Then, in the second and subsequent communication sections, communication is ensured by bidirectional communication.
If the standing history is checked and it is detected that the road-to-vehicle communication is not established in the middle section, it is possible to detect that the road-to-vehicle communication is abnormal. This makes it possible to reliably detect a service stop with only one monitoring receiver.
【００１１】[0011]
【発明の実施の形態】図１に障害物衝突防止サービスの
走行支援システムとその監視システムの構成を示す。ま
た、各装置の配置図を図１に示す。道路は長い直線区間
の後にカーブ区間がある構造となっており、このカーブ
部分の見通しが不良のため停止車両があった場合に直線
を高速で走行してきた車両に対して、走行支援システム
が障害物の情報を提供することにより、追突事故を防ぐ
ことを目的としている。走行支援システムは、サービス
の状況を運用オペレータに通知しサービスの開始・終了
を行うセンタ装置（１）、道路上の障害物を検知する障
害物センサ（２）、路側処理装置（３）、路側通信装置
（４）と基地局（５）と車両の図示しない車載端末とか
らなる路車間通信システムから構成される。障害物セン
サ（２）は、３台の可視センサと３台の赤外線センサか
ら成り、道路上の障害物を監視する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of a traveling support system for an obstacle collision prevention service and its monitoring system. Also shows a layout of the apparatus in FIG. The road has a structure in which there is a curved section after a long straight section, and the visibility of this curved section is bad, so if there is a stopped vehicle, the driving support system will interfere with the vehicle that has traveled at a high speed on a straight line. The purpose is to prevent rear-end collisions by providing information on objects. Driving support system service
Notification of the status of operations to the operation operator and start / end of service
Center device (1) for performing an obstacle, an obstacle sensor (2) for detecting an obstacle on the road, a roadside processing device (3) , a roadside communication device
(4) , base station (5), vehicle-mounted terminal (not shown)
It consists of a road-to-vehicle communication system. The obstacle sensor (2) consists of three visible sensors and three infrared sensors and monitors obstacles on the road.
【００１２】路側アンテナは約１００ｍの通信範囲を持
ち、サービス区間全域をカバーするために７台設置され
ている。故障等の原因で道路に停止中の車両をセンサが
検知し、センサ情報を集約して路車間通信の通信内容を
路側処理装置（３）が作成し、路側通信装置（４）が走
行中の車両の車載端末に無線通信で通知する。車載端末
は、表示や音声によりドライバに前方に停止車両がある
ことを伝達する。監視用受信機（７）は、ぞれぞれの路
側アンテナの通信区間において路車間通信が正常に作動
中であることを検出するために、サービス区間の最初に
位置する通信区間Ａに１台設置され、路車間情報で送信
された電波を受信する。路車間通信監視装置（６）は、
監視用受信機（７）が路車間通信を受信しなくなった場
合に、通信異常を路側処理装置（３）に通知する。[0012] The roadside antenna has a communication range of about 100 m, and seven antennas are installed to cover the entire service section. The sensor detects a vehicle stopped on the road due to a failure or the like, collects the sensor information, and the roadside processing device (3) creates the communication content of the roadside vehicle communication, and the roadside communication device (4) is running. The in-vehicle terminal of the vehicle is notified by wireless communication. The vehicle-mounted terminal notifies the driver that there is a stopped vehicle ahead by displaying or sounding. One monitoring receiver (7) is installed in the communication section A located at the beginning of the service section in order to detect that road-to-vehicle communication is normally operating in the communication section of each roadside antenna. It is installed and receives radio waves transmitted as road-to-vehicle information. The road-to-vehicle communication monitoring device (6)
When the monitoring receiver (7) stops receiving the road-to-vehicle communication, the roadside processing device (3) is notified of the communication abnormality.
【００１３】また路車間通信監視装置（６）は、路側の
監視用受信機（７）が受信した内容と、路側処理装置
（３）からの送信情報とを比較し、実際に受信している
情報に誤りがある場合に通信異常を通知する。また路車
間通信監視装置（６）は、路側通信装置（３）から車載
端末が通信を確立した履歴を入力し、車両が通過するに
従って、Ａ→Ｂ→Ｃ→Ｄ…の順番に通信が確立している
か確認し、通信区間Ｂ以降の通信区間で通信しない区間
があった場合には、通信異常を通知する。The road-to-vehicle communication monitoring device (6) includes a content received by the road- side monitoring receiver (7) and a road-side processing device.
The transmission information from (3) is compared, and if there is an error in the actually received information, a communication abnormality is notified. Further, the road-to-vehicle communication monitoring device (6) is mounted on the vehicle from the roadside communication device (3).
The terminal inputs the history of establishing communication, and as the vehicle passes, it is confirmed that the communication is established in the order of A → B → C → D. If it fails, a communication error is notified.
【００１４】[0014]
【発明の効果】本発明の効果を下記に示す。通信機器の
異常信号を監視する方式では検知できなかった路車間通
信の通信異常によるサービス提供の中断を確実に検出
し、誤情報を防ぐことが可能である。また、監視用車両
を走らせ、路車間通信の確認を行う方式よりも迅速にサ
ービスの中断が検知可能である。これにより、走行支援
システムの信頼性が確保される。機器の保守等の理由か
ら、センタ装置においてサービス停止を実施した際の再
起動においてサービス開始が確実に計測可能となるる。The effects of the present invention are shown below. It is possible to reliably detect the interruption of service provision due to the communication abnormality of the road-to-vehicle communication, which could not be detected by the method of monitoring the abnormal signal of the communication device, and prevent the false information. Further, the service interruption can be detected more quickly than the method of running the surveillance vehicle and confirming the road-to-vehicle communication. This ensures the reliability of the driving support system. For reasons such as equipment maintenance, the service start can be reliably measured when the center device is restarted when the service is stopped.
【図１】本発明の実施形態の説明図である。FIG. 1 is an explanatory diagram of an embodiment of the present invention.
【図２】路車間通信の監視ステムの１例の説明図であ
る。FIG. 2 is an explanatory diagram of an example of a monitoring system for road-to-vehicle communication.
１ センター装置 ２ 障害物センサ ３ 路側処理装置 ４ 路側通信装置 ５ 基地局 ６ 路車間通信監視装置 ７ 監視用受信機 1 Center device 2 Obstacle sensor 3 Roadside processing equipment 4 Roadside communication device 5 base stations 6 Road-to-vehicle communication monitoring device 7 Monitoring receiver
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｈ０４Ｂ 7/26 Ｈ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI H04B 7/26 H
Claims (2)
する障害物センサと、路側処理装置と、路側通信装置
と、基地局とを具え、前記路側処理装置から車両に対し
て障害物や接近車両等の道路上の情報を無線で送信し、
その情報に基づいて、前記車両の車載端末がドライバに
情報提供または操作支援等のサービスを行う走行支援シ
ステムにおいて、 監視用受信機を有する路車間通信監視装置を路側に設置
し、この路車間通信監視装置は、前記監視用受信機が路
車間通信を受信しなくなった場合に、通信異常を前記路
側処理装置に通知し、また監視用受信機が受信した内容
と、路側処理装置からの送信情報とを比較し、実際に受
信している情報に誤りがある場合に通信異常を路側処理
装置に通知して、装置異常や電波状況の悪化等に起因す
る路車間通信異常によるサービスの停止を検出すること
を特徴とする路車間通信の監視システム。1. A detecting an obstacle on the road is installed on the path side
Obstacle sensor, roadside processing device, and roadside communication device
And a base station , wirelessly transmitting information on the road such as obstacles and approaching vehicles from the roadside processing device to the vehicle,
In a driving support system in which the vehicle-mounted terminal of the vehicle provides information to the driver or services such as operation support based on that information, a roadside-vehicle communication monitoring device having a monitoring receiver is installed on the roadside.
And, the road-to-vehicle communication monitoring device, the monitoring receiver road
If the vehicle-to-vehicle communication is no longer received, the communication error is
Content notified to the side processing device and received by the monitoring receiver
And the information sent from the roadside processing device
If there is an error in the information being communicated, a communication error is processed on the roadside.
Notify the device that it may be
Detecting service stop due to road-to-vehicle communication error
A road-to-vehicle communication monitoring system characterized by .
の区間のみ路側に設置した監視用受信機による通信確認
を行い、以降の区間においては、双方向の路車間通信を
利用して通信が正常であるか確認し、路車間通信異常に
よるサービスの停止を検出することを特徴とする請求項
１に記載の路車間通信の監視システム。2. The road-to-vehicle communication monitoring device performs communication confirmation by a monitoring receiver installed on the road side only in the first section of the communication section, and in the subsequent sections, performs communication using bidirectional road-to-vehicle communication. 2. The road-to-vehicle communication monitoring system according to claim 1, further comprising: checking whether the vehicle is normal and detecting a service stop due to a road-to-vehicle communication abnormality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001065793A JP3458156B2 (en) | 2001-03-08 | 2001-03-08 | Road-vehicle communication monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001065793A JP3458156B2 (en) | 2001-03-08 | 2001-03-08 | Road-vehicle communication monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002271250A JP2002271250A (en) | 2002-09-20 |
| JP3458156B2 true JP3458156B2 (en) | 2003-10-20 |
Family
ID=18924392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001065793A Expired - Lifetime JP3458156B2 (en) | 2001-03-08 | 2001-03-08 | Road-vehicle communication monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3458156B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4872595B2 (en) * | 2006-10-25 | 2012-02-08 | 住友電気工業株式会社 | COMMUNICATION SYSTEM, TRAFFIC SIGNAL CONTROL DEVICE, AND ROAD COMMUNICATION DEVICE |
| JP7155043B2 (en) * | 2019-02-28 | 2022-10-18 | 株式会社日立製作所 | Server, vehicle control system |
| KR102223135B1 (en) * | 2019-08-26 | 2021-03-08 | 엘지전자 주식회사 | Method and apparatus for determining an error of a vehicle in autonomous driving system |
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- 2001-03-08 JP JP2001065793A patent/JP3458156B2/en not_active Expired - Lifetime
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