JPH0319099A - Travel time measuring system - Google Patents

Travel time measuring system

Info

Publication number
JPH0319099A
JPH0319099A JP15518189A JP15518189A JPH0319099A JP H0319099 A JPH0319099 A JP H0319099A JP 15518189 A JP15518189 A JP 15518189A JP 15518189 A JP15518189 A JP 15518189A JP H0319099 A JPH0319099 A JP H0319099A
Authority
JP
Japan
Prior art keywords
travel time
measured
provisional
temporary
vehicle number
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.)
Pending
Application number
JP15518189A
Other languages
Japanese (ja)
Inventor
Yoshimasa Fujikawa
藤河 義昌
Kenjiro Miyamoto
宮本 健二郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to JP15518189A priority Critical patent/JPH0319099A/en
Publication of JPH0319099A publication Critical patent/JPH0319099A/en
Pending legal-status Critical Current

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  • Traffic Control Systems (AREA)

Abstract

PURPOSE:To obtain a measured travel time corresponding to an actual travel time by setting a temporary travel time as the measured travel time, in the case abnormality is generated on the way of a traffic flow and the temporary travel time becomes long, and its temporary travel time exceeds continuously the set number. CONSTITUTION:A central processor equipment 1 is provided with a measured travel time determining means 1c, and a deciding means 1b for deciding whether a temporary travel time based on a measured value is below a set level or not, and in the case it is decided to be below the set level in the deciding means 1b, the temporary travel time is set as the measured travel time, and in the case it exceeds the set value, and also, in the case the continuous number of the obtained temporary travel time exceeds the set number, its temporary travel time is set as the measured travel time. In such a way, even in case an accident, etc., are generated on the way of its traffic flow, and the travel becomes remarkably long actually, a travel time being similar to an actual travel time can be measured in accordance with the generation of abnormality, etc.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、旅行時間計測システムに関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a travel time measurement system.

(従来の技術) 道路の交通渋滞情報等を得る方法として、例えば、交通
流における旅行時間を計測する方法がある。この旅行時
間計測システムは、交通流の上流地点と下流地点とのそ
れぞれに設けられ通過車両の車両番号(4桁数字)を認
識する車両番号認識端末機と、それら車両番号認識端末
機か接続されろ中央処理装置とからなり、両車両番号認
識端末機で同一の車両番号か認識された場合に、その認
識時刻に基づいて中央処理装置において交通流における
旅行時間の算出し、その実測旅行時間をベースとして旅
行時間を計測するように構成されている。
(Prior Art) As a method of obtaining road traffic congestion information, for example, there is a method of measuring travel time in traffic flow. This travel time measurement system connects vehicle number recognition terminals that are installed at upstream and downstream points of the traffic flow and recognizes vehicle numbers (4-digit numbers) of passing vehicles. When both vehicle number recognition terminals recognize the same vehicle number, the central processing unit calculates the travel time in the traffic flow based on the recognition time, and calculates the actual travel time. It is configured to measure travel time as a base.

そして、上記のようにして得られた旅行時間が、各種の
予測用データにより加工処理されて予測旅行時間として
路上に表示され、運転者はその表示を見ることにより現
在地から目的地に着くまでの時間等を知ることができる
ようになっている。
The travel time obtained as described above is then processed using various prediction data and displayed on the road as a predicted travel time. It allows you to know the time etc.

(発明が解決しようとする課題) しかしながら、上記の旅行時間の計測方法によれば、実
際に得られる実測旅行時間が異常に長いと、同一の車両
が途中においてどこかで駐車した場合や、偶然4桁の車
両番号が同一の異なる車両が認識され場合を想定して、
旅行時間の計測にその実測旅行時間を採用していない。
(Problem to be Solved by the Invention) However, according to the above travel time measurement method, if the actual travel time actually obtained is abnormally long, it may occur if the same vehicle is parked somewhere along the way, or by accident. Assuming that different vehicles with the same 4-digit vehicle number are recognized,
The actual travel time is not used to measure travel time.

したがって、従来においては、その交通流の途中に事故
等が発生して、実際に旅行時間が大幅に長くなっている
場合にも、その旅行時間が計測されないという問題点が
あった。
Therefore, in the past, there was a problem in that even if an accident or the like occurred during the traffic flow and the travel time was actually significantly longer, the travel time was not measured.

(発明の目的) 本発明は、このような問題点に鑑みてなされたものであ
って、異常発生等に対応して実際の旅行時間に近い旅行
時間を計測可能な旅行時間計測システムを提供すること
を目的とする。
(Object of the Invention) The present invention has been made in view of the above-mentioned problems, and provides a travel time measurement system that can measure a travel time close to the actual travel time in response to the occurrence of an abnormality. The purpose is to

(課題を解決するための手段) 本発明は、このような目的を達成するために、交通流の
上流地点と下流地点とのそれぞれに設けられて、通過車
両の車両番号を認識する車両番号認識端末機と、前記両
車両番号認識端末機からの認識信号に基づいて旅行時間
を計測する中央処理装置とからなる旅行時間計測システ
ムにおいて、前記中央処理装置に、実測値に基づく仮旅
行時間が設定レベル以下か否かの判定を行う判定手段と
、前記判定手段において、設定レベル以下と判定される
場合には仮旅行時間を計測旅行時間とし、越える場合で
、かつ、得られる仮旅行時間の連続数が設定数を越える
場合に、その仮旅行時間を計測旅行時間とする計測旅行
時間決定手段とを備えてなる構成とした。
(Means for Solving the Problems) In order to achieve such an object, the present invention provides a vehicle number recognition system that is provided at each of an upstream point and a downstream point of traffic flow to recognize the vehicle number of passing vehicles. In a travel time measurement system comprising a terminal and a central processing unit that measures travel time based on recognition signals from both vehicle number recognition terminals, a provisional travel time is set in the central processing unit based on actual measured values. a determination means for determining whether or not the level is below the set level, and if the determination means determines that the level is below the set level, the provisional travel time is set as the measured travel time, and if the level is exceeded, the provisional travel time obtained is continuous; If the number exceeds a set number, the tentative travel time is set as the measured travel time.

(作用) 上記の構成によれば、交通流途中において異常が発生し
て実測値に基づく仮旅行時間か長くなり、その仮旅行時
間が連続して設定数を越える場合は、仮旅行時間か計測
旅行時間とされる。
(Function) According to the above configuration, if an abnormality occurs during the traffic flow and the provisional travel time based on the actual measurement value becomes longer, and if the provisional travel time exceeds the set number consecutively, the provisional travel time is measured. Considered travel time.

(実施例) 以下、本発明を図面に示す実施例に基づいて詳細に説明
する。第1図は本発明の実施例の概略構成図、第2図は
同ブロック構成図である。
(Example) Hereinafter, the present invention will be described in detail based on an example shown in the drawings. FIG. 1 is a schematic block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of the same.

これらの図において、符号Iは中央処理装置、2a 、
2bのそれぞれは車両番号認識端末機、3は表示機構と
して情報板であり、中央処理装置Iは、例えば、交通管
制局に設けられ、一方の車両番号認識端末機2aは計測
対象となる矢印方向で示す交通流の上流地点に、他方の
車両番号認識端末機2bは下流地点にそれぞれ設けられ
ている。
In these figures, the symbol I denotes the central processing unit, 2a,
Each of 2b is a vehicle number recognition terminal, 3 is an information board as a display mechanism, the central processing unit I is installed, for example, in a traffic control station, and one vehicle number recognition terminal 2a is a vehicle number recognition terminal 2a that is a vehicle number recognition terminal, and 3 is an information board as a display mechanism. The other vehicle number recognition terminal 2b is installed at the upstream point of the traffic flow, and the other vehicle number recognition terminal 2b is installed at the downstream point.

車両番号認識端末機2a 、2bは、道路の上方に設け
られて通過車両4を撮像する撮像カメラ5a 、5bと
、路肩に設けられ車両番号を認識してその認識したデー
タを中央処理装置Iに伝送する処理・伝送部6a 、6
bとを備えている。情報板3は道路の上方に設けられ、
中央処理装置lから与えられる予測旅行時間信号に基づ
き予測旅行時間の表示を行う。
Vehicle number recognition terminals 2a and 2b are provided with imaging cameras 5a and 5b installed above the road to take images of passing vehicles 4, and installed on the roadside to recognize the vehicle number and send the recognized data to the central processing unit I. Processing/transmission units 6a, 6 for transmission
b. The information board 3 is installed above the road,
The predicted travel time is displayed based on the predicted travel time signal given from the central processing unit l.

中央処理装置1は、車両番号認識端末機2a2bから認
識信号が与えられた場合にその認識時刻から得られる実
測旅行時間に基づいて仮旅行時間を算出する第1算出手
段1aと、上記仮旅行時肘が設定レベル以下か否かの判
定を行う判定手段1bと、上記判定手段1bにおいて仮
旅行時間か設定レベル以下と判定される場合にはその仮
旅行時間を計測旅行時間とし、越える場合で、かつ、得
られる仮旅行時間の連続数が設定数を越える場合に、そ
の仮旅行時間を計測旅行時間とする計測旅行時間決定手
段1cと、計測旅行時間に基づいて予測旅行時間を算出
する第2算出手段1dと、上記仮旅行時間と予測旅行時
間とを算出する際の計算用データおよび決定手段1cか
ら与えられる計測旅行時間を記憶する記憶手段1eとを
備える構成となっている。
The central processing unit 1 includes a first calculation means 1a that calculates a provisional travel time based on the actual travel time obtained from the recognition time when a recognition signal is given from the vehicle number recognition terminal 2a2b; A determining means 1b that determines whether the elbow is below a set level, and when the determining means 1b determines that the provisional travel time is below the set level, the provisional travel time is set as the measured travel time, and if it exceeds the set level, the provisional travel time is determined as the measured travel time; and a measured travel time determining means 1c which sets the provisional travel time as a measured travel time when the number of consecutive provisional travel times obtained exceeds a set number; and a second part which calculates a predicted travel time based on the measured travel time. It is configured to include a calculation means 1d, and a storage means 1e for storing calculation data for calculating the provisional travel time and predicted travel time and the measured travel time given from the determination means 1c.

以下、中央処理装置1における動作を、第3図の中央処
理装置lの基本動作を示すフローチャートを参照して説
明する。
The operation of the central processing unit 1 will be described below with reference to the flowchart shown in FIG. 3 showing the basic operation of the central processing unit 1.

まず、車両番号認識端末機2a、2bからの認識信号に
おける時刻差に基づいて、第1演算手段Iaがt^を算
出し、さらに、そのtnに基づいて次式により仮旅行時
間T^を算出する(ステップl)。
First, the first calculation means Ia calculates t^ based on the time difference between the recognition signals from the vehicle number recognition terminals 2a and 2b, and further calculates the provisional travel time T^ based on the tn using the following formula. (Step l).

Tへ=αXT、−、+βXtfL (α+β−1) n:データ毎に+1 そして、判定手段1bがこの仮旅行時間Tへに幅を持た
せた値X X=T八xへ +±δ) (0〈δ<1) が設定レベルに以下かどうかを判定する(ステップ2)
。次に決定手段ICは、以下と判定する場合はその仮旅
行時間Tへを計測旅行時間としてそのまま出力しくステ
ップ3)、11(Kを越える場合はさらに、そのKを越
える仮旅行時間Tn数をカウントして設定数に達する場
合(ステップ4)にステップ3に移行してその仮旅行時
間Tnを計測旅行時間として出力する。上記のカウント
は得られる実測旅行時間が大幅に変化しない場合、すな
わち、 tn≦t41−+X(1土γ) γくδ の場合に行い、とくに、そのカウント数nは、Xが設定
レベル以下である近傍範囲の場合はM、それを越える除
外範囲の場合はNとしており、N〉Mの関係となってい
る。
To T = αXT, -, +βXtfL (α+β-1) n: +1 for each data Then, the judgment means 1b gives a range to this provisional travel time T. Determine whether 0<δ<1) is less than the set level (Step 2)
. Next, if the determining means IC determines that If the count reaches the set number (step 4), the process goes to step 3 and outputs the provisional travel time Tn as the measured travel time. This is done when tn≦t41−+X(1 Satγ) γ×δ, and in particular, the count number n is M if it is in the neighborhood range where X is below the set level, and N if it is in the excluded range that exceeds it. The relationship is N>M.

上記のα、β、δ、に、γは、車両番号認識端末機2a
 、2b設設置点間の車両分岐率等の地域特性により異
なる要因を持っているが、例えば、それぞれ0.5.0
,5,0,2,3,0.1に設定する。
The above α, β, δ, and γ are the vehicle number recognition terminal 2a.
, 2b has different factors depending on regional characteristics such as vehicle branching rate between installation points, but for example, each 0.5.0
, 5, 0, 2, 3, 0.1.

M、Nについては、渋滞時等の分散の大きい時間帯にお
ける異常値取り込みを防ぐため、例えば、それぞれ4.
5とする。上記近傍範囲は、Tnの50および100%
程度の範囲を設定している。
For M and N, for example, 4.
5. The above neighborhood range is 50 and 100% of Tn.
A range of degrees is set.

1’f7  も  秒 そして、最後に計測旅行時間に基づいて予測旅行時間が
第2算出手段1dにより算出され(ステップ5)、その
予測旅行時間が情報板3で表示される(ステップ6)。
1'f7 is also seconds.Finally, a predicted travel time is calculated by the second calculating means 1d based on the measured travel time (step 5), and the predicted travel time is displayed on the information board 3 (step 6).

上記のステップ2、ステップ4、ステップ3の動作にお
いて、XがKを越え、そのKを越える仮旅行時間’rn
数が設定数に達する場合にその仮旅行時間T、を計測旅
行時間として出力することにより、交通流に異常が発生
して旅行時間が大幅に長くなった場合においても、実際
の旅行時間に対応する計測旅行時間が得られるものであ
る。
In the operations of step 2, step 4, and step 3 above, X exceeds K, and the temporary travel time 'rn
By outputting the provisional travel time T as the measured travel time when the number reaches the set number, it can correspond to the actual travel time even if an abnormality occurs in the traffic flow and the travel time becomes significantly longer. The measured travel time can be obtained.

第4図は上記の動作説明に対応する旅行時間と時刻との
対応を示すグラフ図であり、斜線で示す部分がX<Kで
あるTnの採用範囲であり、その両側に近傍範囲、さら
にその両側に除外範囲が位置している。そして、5個の
実測旅行時間【偽〜teが得られた結果としてT負のレ
ベルかGの時点で切り変わり、これに対応して採用範囲
、近傍範囲、除外範囲のそれぞれもそのレベルが切り替
わっている。
FIG. 4 is a graph showing the correspondence between travel time and time corresponding to the above operation explanation. The shaded area is the adoption range of Tn where Exclusion ranges are located on both sides. Then, as a result of obtaining the five actual travel times [false ~ te], it switches at the negative level of T or at the time of G, and correspondingly, the levels of the adopted range, neighboring range, and excluded range also switch. ing.

(発明の効果) したがって本発明によれば、交通流途中において異常が
発生することにより、仮旅行時間が長くなり、その仮旅
行時間が連続して設定数を越える場合は、仮旅行時間が
計測旅行時間とされるので、これにより、実際の旅行時
間に対応する計測旅行時間が得られるようになる。
(Effects of the Invention) Therefore, according to the present invention, if an abnormality occurs during the traffic flow and the provisional travel time becomes longer and the provisional travel time exceeds the set number consecutively, the provisional travel time is measured. This makes it possible to obtain a measured travel time that corresponds to the actual travel time.

【図面の簡単な説明】[Brief explanation of drawings]

第1図ないし第4図は本発明の実施例に係り、第1図は
旅行時間予測表示ノステムの概略構成図、第2図は同ブ
ロック構成図、第3図は動作説明に供するフローチャー
ト、第4図は旅行時間の時刻変化を示すグラフ図である
。 !・・・中央処理装置、 1b・・・判定手段、 IC・・・計測旅行時間決定手段、 2a 、2b・・・車両番号認識端末機。
1 to 4 relate to an embodiment of the present invention, in which FIG. 1 is a schematic configuration diagram of the travel time prediction display system, FIG. 2 is a block configuration diagram thereof, FIG. 3 is a flowchart for explaining the operation, and FIG. FIG. 4 is a graph showing changes in travel time over time. ! ... central processing unit, 1b ... determination means, IC ... measurement travel time determination means, 2a, 2b ... vehicle number recognition terminal.

Claims (1)

【特許請求の範囲】[Claims] (1)交通流の上流地点と下流地点とのそれぞれに設け
られて、通過車両の車両番号を認識する車両番号認識端
末機と、 前記両車両番号認識端末機からの認識信号に基づいて旅
行時間を計測する中央処理装置とからなる旅行時間計測
システムにおいて、 前記中央処理装置に、 実測値に基づく仮旅行時間が設定レベル以下か否かの判
定を行う判定手段と、 前記判定手段において、設定レベル以下と判定される場
合には仮旅行時間を計測旅行時間とし、越える場合で、
かつ、得られる仮旅行時間の連続数が設定数を越える場
合に、その仮旅行時間を計測旅行時間とする計測旅行時
間決定手段と を備えてなることを特徴とする旅行時間計測システム。
(1) A vehicle number recognition terminal is provided at each of the upstream and downstream points of the traffic flow and recognizes the vehicle number of passing vehicles, and the travel time is calculated based on the recognition signals from both vehicle number recognition terminals. A travel time measurement system comprising: a central processing unit that measures a travel time, the central processing unit comprising: determination means for determining whether a provisional travel time based on an actual measurement value is less than or equal to a set level; If it is determined that the provisional travel time is below, the provisional travel time will be considered the measured travel time, and if it is exceeded,
A travel time measuring system comprising: a measured travel time determining means that determines the provisional travel time as the measured travel time when the number of consecutive provisional travel times obtained exceeds a set number.
JP15518189A 1989-06-16 1989-06-16 Travel time measuring system Pending JPH0319099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15518189A JPH0319099A (en) 1989-06-16 1989-06-16 Travel time measuring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15518189A JPH0319099A (en) 1989-06-16 1989-06-16 Travel time measuring system

Publications (1)

Publication Number Publication Date
JPH0319099A true JPH0319099A (en) 1991-01-28

Family

ID=15600258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15518189A Pending JPH0319099A (en) 1989-06-16 1989-06-16 Travel time measuring system

Country Status (1)

Country Link
JP (1) JPH0319099A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07168655A (en) * 1993-09-08 1995-07-04 Samsung Electron Co Ltd Switching control device for serial communication port and optical communication port and driving method thereof
JP2001155283A (en) * 1999-11-26 2001-06-08 Matsushita Electric Ind Co Ltd Traffic and environmental data processing system and processing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412398A (en) * 1987-07-06 1989-01-17 Omron Tateisi Electronics Co Avi system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412398A (en) * 1987-07-06 1989-01-17 Omron Tateisi Electronics Co Avi system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07168655A (en) * 1993-09-08 1995-07-04 Samsung Electron Co Ltd Switching control device for serial communication port and optical communication port and driving method thereof
JP2001155283A (en) * 1999-11-26 2001-06-08 Matsushita Electric Ind Co Ltd Traffic and environmental data processing system and processing method

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