JPH07244794A - Vehicle detector - Google Patents
Vehicle detectorInfo
- Publication number
- JPH07244794A JPH07244794A JP3450894A JP3450894A JPH07244794A JP H07244794 A JPH07244794 A JP H07244794A JP 3450894 A JP3450894 A JP 3450894A JP 3450894 A JP3450894 A JP 3450894A JP H07244794 A JPH07244794 A JP H07244794A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- pressure receiving
- receiving plate
- shaped
- box
- 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- Withdrawn
Links
Landscapes
- Traffic Control Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、有料道路あるいは自動
料金収受システムに利用される車種検知装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle type detection device used for a toll road or an automatic toll collection system.
【０００２】[0002]
【従来の技術】従来の技術を図５及び図６に示す。一般
に、有料道路等の自動料金収受システムにおいては通行
車両の車種を判別するために、車種判別装置が設置され
ている。図５は、上記有料道路における料金収受システ
ムの概略模式図である。図５において、１は通行車両
で、車両進入路４を矢印の方向に進行する。２は車両分
離器で、３は路面に埋設された踏板である。図６は、実
公平第４−１８０７７号公報に示された従来の踏板の断
面図である。この踏板は基板６および接点体７をゴムな
どの弾性部材５でモールドしてなるもので、路面８の全
幅に亘り埋設されている。このような構成において車両
分離器により検知される１台の車両が踏板上を通過する
と、車両の荷重により弾性体の踏板が撓み接点体が変位
し、これら接点体の変位に基づいて軸数、輪数、輪幅等
の車種判別要因が検出されるようになっている。2. Description of the Related Art A conventional technique is shown in FIGS. Generally, in an automatic toll collection system for a toll road or the like, a vehicle type identification device is installed in order to identify the vehicle type of a passing vehicle. FIG. 5 is a schematic diagram of the toll collection system on the toll road. In FIG. 5, reference numeral 1 denotes a passing vehicle which travels along a vehicle approach path 4 in the direction of the arrow. Reference numeral 2 is a vehicle separator, and 3 is a tread embedded in the road surface. FIG. 6 is a cross-sectional view of a conventional tread plate disclosed in Japanese Utility Model Publication No. 4-18077. This tread plate is formed by molding a substrate 6 and a contact body 7 with an elastic member 5 such as rubber, and is embedded over the entire width of the road surface 8. In such a structure, when one vehicle detected by the vehicle separator passes over the tread plate, the tread plate of the elastic body is bent by the load of the vehicle and the contact body is displaced. Vehicle type discrimination factors such as the number of wheels and the wheel width are detected.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、上記車種判
別用の踏板では、次のような問題があった。該踏板は走
行車線全幅に亘り埋設されているので、その長さは通常
３ｍ程度になり、運搬時にその重量により撓みが大きく
なり接点体７の感知精度の悪化を招くおそれがあった。However, the above-mentioned tread for discriminating the vehicle type has the following problems. Since the tread plate is buried over the entire width of the traveling lane, the length thereof is usually about 3 m, and the weight of the tread plate causes a large amount of bending during transportation, which may deteriorate the sensing accuracy of the contact point body 7.
【０００４】本発明は、前述の問題を解決することがで
きる装置、すなわち運搬作業時における撓みによる接点
体の感知精度の悪化を招くおそれがなく、かつ車線幅に
自由に対応出来る車種検知装置を提供することを目的と
する。The present invention provides a device capable of solving the above-mentioned problems, that is, a vehicle type detection device that is free from the possibility of deteriorating the accuracy of sensing a contact body due to bending during transportation work and that can freely respond to the lane width. The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】本発明に係る車両検知装
置は、有料道路の料金収受システムの車両検知装置にお
いて、剛性構造の箱形容器２０からなる複数の車両検知
器１５を具備し、前記剛性構造の箱形容器２０の上部
は、両端のみ固定した帯状弾性体受圧板１０とし、該受
圧板の下面には感圧センサ１１を設け、かつ前記複数の
車両検知器１５は車両進入路の全幅に連設して埋設し、
上記車両検知器の、帯状弾性体受圧板１０の長手方向
を、車両進入方向に設けたことを特徴とする。A vehicle detection device according to the present invention is a vehicle detection device for a toll collection system for toll roads, comprising a plurality of vehicle detectors 15 each comprising a box-shaped container 20 having a rigid structure. The upper portion of the rigid box-shaped container 20 is a strip-shaped elastic body pressure receiving plate 10 fixed only at both ends, a pressure sensitive sensor 11 is provided on the lower surface of the pressure receiving plate, and the plurality of vehicle detectors 15 are connected to the vehicle approach path. It embeds in a row in full width,
The longitudinal direction of the belt-shaped elastic body pressure receiving plate 10 of the vehicle detector is provided in the vehicle approach direction.
【０００６】[0006]
【作用】図１、図２に示すように、車両検知器１２には
上部に受圧板１０を設けてある。そのため受圧板１０の
上を車両が通過すると、車両の車輪９は下部に感圧セン
サ１１を固着している受圧板を踏圧する。この感圧セン
サ１１には通常ひずみゲージが使用されており、車両が
通過すると、踏圧すなわち車重により受圧板が撓む。そ
して、この撓みに応じて図３に示す出力信号Ａ、Ｂ、
Ｃ、Ｄが、ひずみゲージから出力される。As shown in FIGS. 1 and 2, the vehicle detector 12 is provided with the pressure receiving plate 10 on the upper portion thereof. Therefore, when the vehicle passes over the pressure receiving plate 10, the wheels 9 of the vehicle step on the pressure receiving plate to which the pressure sensitive sensor 11 is fixed. A strain gauge is usually used for the pressure sensor 11, and when the vehicle passes, the pressure receiving plate is bent by the pedaling pressure, that is, the vehicle weight. The output signals A, B shown in FIG.
C and D are output from the strain gauge.
【０００７】[0007]
【実施例】本発明の実施例を図１〜図４に示す。図１は
本発明装置の第１実施例を示す図、図２は第１実施例の
作用説明図、図３は第１実施例の車両検知装置の信号出
力の波形図、図４は第１実施例の車両検知装置の外観を
示す模式図である。EXAMPLE An example of the present invention is shown in FIGS. FIG. 1 is a diagram showing a first embodiment of the device of the present invention, FIG. 2 is an operation explanatory diagram of the first embodiment, FIG. 3 is a waveform diagram of a signal output of the vehicle detection device of the first embodiment, and FIG. It is a schematic diagram which shows the external appearance of the vehicle detection apparatus of an Example.
【０００８】図１に示す車両検知器１２の、剛性構造の
箱形容器の上部を両端のみを固定した帯状弾性体受圧板
１０は、車両１の踏圧により撓む構造となっており、上
記受圧板の下面には、感圧センサ１１としてひずみゲー
ジを固着している。A belt-shaped elastic pressure-receiving plate 10 of the vehicle detector 12 shown in FIG. 1 in which the upper portion of a rigid box-shaped container is fixed only at both ends has a structure which is bent by the pedaling pressure of the vehicle 1. A strain gauge as a pressure sensor 11 is fixed to the lower surface of the plate.
【０００９】いま、図１、図２において、車両が進入
し、受圧板の上を通過すると車両の踏圧により受圧板が
下方に撓むことになる。受圧板の下面には感圧センサ
（ひずみゲージ）１１を固着しているので、この撓みに
応じた信号出力を発生する。1 and 2, when the vehicle enters and passes over the pressure receiving plate, the pressure receiving plate of the vehicle bends downward due to the pedaling pressure of the vehicle. Since the pressure sensor (strain gauge) 11 is fixed to the lower surface of the pressure receiving plate, a signal output corresponding to this bending is generated.
【００１０】車両検知器１２は、図４に示すように路面
８の全幅にわたり連設埋設しているので、車輪が通過し
た車両検知器のひずみゲージから、車重に応じたアナロ
グ信号出力が発生する。図３に示すように、この波形信
号の幅Ａから車両の進入速度が分り、波形信号の高さＢ
から車重がわかる。また車両検知器は複数個連設し埋設
しているので、信号出力が発生した車両検知器の位置、
すなわち図３の路幅信号Ｃによりタイヤ位置が検出でき
る。さらに、進入速度信号Ａと、前輪と後輪が通過した
時間差Ｄ、から前輪と後輪との距離が分る。また、車両
検知器の幅を小さくし、多数連設することにより、タイ
ヤ幅が分る。As shown in FIG. 4, since the vehicle detector 12 is continuously embedded in the road surface 8, the analog signal output corresponding to the vehicle weight is generated from the strain gauge of the vehicle detector through which the wheels pass. To do. As shown in FIG. 3, the approach speed of the vehicle is known from the width A of the waveform signal, and the height B of the waveform signal is obtained.
You can see the vehicle weight from In addition, since multiple vehicle detectors are connected and buried, the position of the vehicle detector where the signal output is generated,
That is, the tire position can be detected by the road width signal C shown in FIG. Further, the distance between the front wheel and the rear wheel is known from the approach speed signal A and the time difference D when the front wheel and the rear wheel pass. Further, the width of the tire can be determined by reducing the width of the vehicle detectors and arranging a large number of them in series.
【００１１】[0011]
【発明の効果】本発明は前述のように構成されているの
で、以下に記載するような効果を奏する。 （１）本発明装置の車両検知器は、剛性構造の箱形容器
の上部に、両端のみを固定した帯状弾性体受圧板を設
け、その下面に、感圧センサを固着しているので、単
純、かつ堅固である。そのため、運搬、あるいは設置に
よる検出精度の悪化を招くことを防止することができ
る。Since the present invention is constructed as described above, it has the following effects. (1) Since the vehicle detector of the device of the present invention is provided with a belt-shaped elastic body pressure plate having only its both ends fixed on the upper portion of a box-shaped container having a rigid structure, and a pressure-sensitive sensor is fixed to the lower surface thereof, it is simple. , And robust. Therefore, it is possible to prevent the detection accuracy from being deteriorated due to transportation or installation.
【００１２】（２）また、感圧センサのみで検出できる
ため、小型で安価となり、安定、かつ正確な値が求めら
れることにより信頼性が増し、車両検知精度の向上を図
ることができる。(2) Further, since the pressure can be detected only by the pressure-sensitive sensor, the device is small and inexpensive, and a stable and accurate value is required, so that reliability is increased and vehicle detection accuracy can be improved.
【図１】本発明の第１実施例を示す図。FIG. 1 is a diagram showing a first embodiment of the present invention.
【図２】第１実施例の作用説明図。FIG. 2 is an explanatory view of the operation of the first embodiment.
【図３】第１実施例の車両検知装置の信号出力の波形
図。FIG. 3 is a waveform diagram of a signal output of the vehicle detection device according to the first embodiment.
【図４】第１実施例の車両検知装置の外観を示す模式
図。FIG. 4 is a schematic diagram showing an outer appearance of the vehicle detection device according to the first embodiment.
【図５】有料道路における料金収受システムの概略模式
図。FIG. 5 is a schematic diagram of a toll collection system on a toll road.
【図６】従来の踏板の断面を示す図。FIG. 6 is a view showing a cross section of a conventional tread plate.
【符号の説明】 １…車両、 ２…車両分離器、 ３…踏板、 ５…弾性部材、 ７…接点体、 ９…車輪、 １０…受圧板、 １１…感圧センサ、 １２…車両検知器、 １４…信号出力、 １５…車両検知装置、 ２０…箱形容器。[Explanation of Codes] 1 ... Vehicle, 2 ... Vehicle separator, 3 ... Tread plate, 5 ... Elastic member, 7 ... Contact point body, 9 ... Wheel, 10 ... Pressure receiving plate, 11 ... Pressure sensor, 12 ... Vehicle detector, 14 ... Signal output, 15 ... Vehicle detection device, 20 ... Box-shaped container.
Claims (1)
装置において、剛性構造の箱形容器（２０）からなる複
数の車両検知器（１５）を具備し、前記剛性構造の箱形
容器（２０）の上部は、両端のみ固定した帯状弾性体受
圧板（１０）とし、該受圧板の下面には感圧センサ（１
１）を設け、かつ前記複数の車両検知器（１５）は車両
進入路の全幅に連設して埋設し、上記車両検知器の、帯
状弾性体受圧板（１０）の長手方向を、車両進入方向に
設けたことを特徴とする車両検知装置。1. A vehicle detection device for a toll road toll collection system, comprising a plurality of vehicle detectors (15) consisting of a rigid-structured box-shaped container (20), said rigid-structured box-shaped container (20). The upper part of the pressure receiving plate is a strip-shaped elastic pressure receiving plate (10) fixed only at both ends.
1) is provided and the plurality of vehicle detectors (15) are continuously embedded in the entire width of the vehicle approach path, and the longitudinal direction of the belt-shaped elastic pressure receiving plate (10) of the vehicle detector is set to the vehicle entrance direction. Vehicle detection device characterized by being provided in a direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3450894A JPH07244794A (en) | 1994-03-04 | 1994-03-04 | Vehicle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3450894A JPH07244794A (en) | 1994-03-04 | 1994-03-04 | Vehicle detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07244794A true JPH07244794A (en) | 1995-09-19 |
Family
ID=12416209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3450894A Withdrawn JPH07244794A (en) | 1994-03-04 | 1994-03-04 | Vehicle detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07244794A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2857092A1 (en) * | 2003-07-04 | 2005-01-07 | Thales Sa | Dynamic load measuring sensor for roadway, has conducting cap forming interface between surface on which pressure is to be applied and electromagnetic loop, where pressure reduces loops reactance and inductance to measure load |
| JP2010198572A (en) * | 2009-02-27 | 2010-09-09 | Mitsubishi Heavy Ind Ltd | Vehicle discrimination device and vehicle discrimination method |
| JP2012185530A (en) * | 2011-03-03 | 2012-09-27 | Mitsubishi Heavy Ind Ltd | Tread board frame and toll collection system |
-
1994
- 1994-03-04 JP JP3450894A patent/JPH07244794A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2857092A1 (en) * | 2003-07-04 | 2005-01-07 | Thales Sa | Dynamic load measuring sensor for roadway, has conducting cap forming interface between surface on which pressure is to be applied and electromagnetic loop, where pressure reduces loops reactance and inductance to measure load |
| WO2005012847A3 (en) * | 2003-07-04 | 2005-05-19 | Thales Sa | Electromagnetic loop sensor for measuring dynamic loads applied to a roadway by road traffic |
| JP2010198572A (en) * | 2009-02-27 | 2010-09-09 | Mitsubishi Heavy Ind Ltd | Vehicle discrimination device and vehicle discrimination method |
| JP2012185530A (en) * | 2011-03-03 | 2012-09-27 | Mitsubishi Heavy Ind Ltd | Tread board frame and toll collection system |
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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: 20010508 |