JP2007207206A - Vehicle sensing device - Google Patents

Vehicle sensing device Download PDF

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JP2007207206A
JP2007207206A JP2006053761A JP2006053761A JP2007207206A JP 2007207206 A JP2007207206 A JP 2007207206A JP 2006053761 A JP2006053761 A JP 2006053761A JP 2006053761 A JP2006053761 A JP 2006053761A JP 2007207206 A JP2007207206 A JP 2007207206A
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vehicle
sensor
sensing device
sensing
ultrasonic
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Haruo Hirose
治夫 広瀬
Kazunobu Makishima
和信 巻島
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TECHNICAL ELECTRON CO Ltd
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TECHNICAL ELECTRON CO Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive and safe vehicle sensing device that reliably senses a vehicle and/or moving body by using an ultrasonic sensor and an infrared sensor. <P>SOLUTION: Two or more sensor units each integrating an ultrasonic sensor and an infrared sensor are used to reliably sense a vehicle and/or moving body, and the sensor units are each provided with a substantially 1/3-cylindrical reflector. A vehicle sensing signal and a moving body sensing signal output from each sensor unit are discriminated by a discrimination circuit, which produces a corresponding control signal to control a flap plate drive circuit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は無人有料駐車場に設置されている車両の出庫を制御するフラップ板用の制御御信号を得る為の車両感知装置に関し、詳しくは複数の感知センサーユニット内の超音波センサーと赤外線センサーから得られる感知信号を判別して得られた制御信号でフラップ板を制御する車両感知装置。  The present invention relates to a vehicle sensing device for obtaining a control signal for a flap plate that controls the delivery of a vehicle installed in an unmanned paid parking lot, and more specifically, from an ultrasonic sensor and an infrared sensor in a plurality of sensing sensor units. A vehicle sensing device that controls a flap plate with a control signal obtained by discriminating an obtained sensing signal.

近年、省力化された無人の有料駐車場が増加しており、車両の無断駐車や料金不払いを防止する為に車両の出庫を制御するフラップ板なるものが指定駐車域内に設置されている。そして、前記フラップ板を作動させる為の信号を得る為に色々な方法や手段が提供され、開示され、且つ実用化されている。  In recent years, labor-saving unmanned paid parking lots are increasing, and a flap plate for controlling vehicle exit is installed in a designated parking area in order to prevent unauthorized parking of vehicles and non-payment of fees. Various methods and means are provided, disclosed, and put into practical use for obtaining a signal for operating the flap plate.

図4は従来より現在迄無人有料駐車場で使用されているループコイル11を使用した車両感知装置であり、地中に埋設されて通電されたループコイル11に車両が接近、到達又は通過すると微妙に変化するインダクタンス値を検出して作り出した検出信号を使ってフラップ板12を上げ,車両の無断出庫を阻止する。特許文献1には、ループコイルを地中に埋めた際に生ずる周囲環境の変化を受け易い、設置工数が掛かる、調整が難しい等の不具合を軽減する為に円形又は角型の薄い筐体内にループコイルを樹脂等で固定し、収納して地表面に設置する方法が開示されている。  FIG. 4 shows a vehicle sensing device using a loop coil 11 that has been used in an unmanned toll parking lot until now. When a vehicle approaches, reaches, or passes through a loop coil 11 embedded in the ground and energized, The flap plate 12 is raised using the detection signal produced by detecting the inductance value that changes to prevent unauthorized removal of the vehicle. In Patent Document 1, a circular or square thin casing is used to reduce problems such as being susceptible to changes in the surrounding environment that occur when the loop coil is buried in the ground, requiring installation man-hours, and being difficult to adjust. A method is disclosed in which a loop coil is fixed with resin or the like, stored and installed on the ground surface.

特許文献2には、車両感知ユニットから赤外光や超音波を発射して感知エリア内に有る車両からの反射信号を受信することによって車両感知を通報する手段が開示されている。  Patent Document 2 discloses a means for reporting vehicle detection by emitting infrared light or ultrasonic waves from a vehicle detection unit and receiving a reflection signal from a vehicle in a detection area.

特許文献3には、反射板の角度を変えて超音波の放射方向を変える車両感知装置が開示されている。
特開2004−295513 特開2004−295513 実公平03−13832
Patent Document 3 discloses a vehicle sensing device that changes the radiation direction of ultrasonic waves by changing the angle of a reflector.
JP 2004-295513 A JP 2004-295513 A Reality 03-13832

しかしながら、ループコイルを使用した車両感知センサーは微小なインダクタンスの変化による共振周波数の変動を検出しているので周囲の磁気や温度変化の影響を受け易く誤作動を起こす危険を孕んでいる。特に、入庫後周囲の環境変化を排除しながら微小変化量を保持すると言う理論的にも矛盾する状態を継続しなければならない。又,前述したように設置工数が掛かり且つメンテナンスも面倒等の根本的な不具合を包含している。  However, since the vehicle detection sensor using a loop coil detects a change in resonance frequency due to a minute change in inductance, the vehicle detection sensor is susceptible to the influence of surrounding magnetism and temperature, and has a risk of malfunction. In particular, it is necessary to continue a theoretically contradictory state of maintaining a minute amount of change while eliminating surrounding environmental changes after warehousing. In addition, as described above, installation man-hours are required, and maintenance includes troublesome problems such as troublesomeness.

これらの不具合を解消する為に特許文献1には、ループコイルを樹脂等を充填した筐体内に納めて地表面に設置する方法が開示されているが微小なインダクタンスの変化を検出している為に根本的な不具合の解消とはなっていない。  In order to solve these problems, Patent Document 1 discloses a method of placing a loop coil in a housing filled with resin or the like and installing it on the ground surface. However, a minute change in inductance is detected. However, it does not solve the fundamental problem.

特許文献2では、赤外線センサー及び超音波センサーが単独で使用されてい事例が開示されているがエリア内の車両と動体物との区別を感知するのが難しい。  Patent Document 2 discloses an example in which an infrared sensor and an ultrasonic sensor are used alone, but it is difficult to detect the distinction between a vehicle and a moving object in the area.

特許文献3には、車両等に確実に超音波が当たるように角度の変わる平面反射板を使って超音波の放射方向を変えられる車両感知装置が開示されているが可成り大掛かりな装置となってしまう。  Patent Document 3 discloses a vehicle sensing device that can change the radiation direction of ultrasonic waves by using a plane reflecting plate whose angle changes so that the ultrasonic waves reliably hit the vehicle or the like, but it is a considerably large-scale device. End up.

本発明は,ループコイルを使用した車両感知装置の持っている不具合を解消し、且つ車両とその他の動体物を確実に区別できる車両感知装置の提供を目的とする。  An object of the present invention is to provide a vehicle sensing device that can solve the problems of the vehicle sensing device using a loop coil and can reliably distinguish the vehicle from other moving objects.

上記目的を達成する為、本願発明にかかる車両感知装置はループコイルの代わりに超音波センサーと赤外線センサーを使用して車両等を感知することを特徴とする。  In order to achieve the above object, a vehicle sensing device according to the present invention is characterized by sensing a vehicle or the like using an ultrasonic sensor and an infrared sensor instead of a loop coil.

即ち、請求項1に記載の本願発明は、超音波用の発振部と受信部及び赤外線用の受信部とを一体化した複数の感知センサーユニットを任意の間隔で略長方形の部材に取り付けた構造となっている。  That is, the present invention according to claim 1 is a structure in which a plurality of sensing sensor units in which an ultrasonic oscillator, a receiver, and an infrared receiver are integrated are attached to a substantially rectangular member at an arbitrary interval. It has become.

そして、車両の無断出庫を阻止するフラップ板装着部に前記略長方形の部材を取付けた事を特長とする車両感知装置である。  And it is a vehicle sensing apparatus characterized by attaching the said substantially rectangular member to the flap board mounting | wearing part which prevents the vehicle's unauthorized delivery.

請求項2に記載の本願発明は、下向きにした前記複数の感知センサーユニットの各々に任意の幅の略1/3円筒状の反射板を取り付け、且つ前記感知センサーユニットと前記反射板の全体を筐体内に納めた車両感知装置である。  According to a second aspect of the present invention, an approximately 1/3 cylindrical reflecting plate having an arbitrary width is attached to each of the plurality of sensing sensor units facing downward, and the entire sensing sensor unit and the reflecting plate are attached. A vehicle sensing device housed in a housing.

本願発明になる車両感知装置は、フラップ板取付部と車両感知ユニット装着部とを一体化し、且つ超音波センサーの送信部と受信部及び赤外線センサーの受信部とを隣接させているのでシステム全体のコンパクト化が可能となった。  In the vehicle sensing device according to the present invention, the flap plate mounting part and the vehicle sensing unit mounting part are integrated, and the transmitting part of the ultrasonic sensor, the receiving part and the receiving part of the infrared sensor are adjacent to each other. Compactness is now possible.

加えて、超音波センサーと赤外線センサーで構成される車両感知センサーユニットを複数個使用することにより、車両検知エリア内の車両等の感知が確実となり且つ車両とその他の動体物とを確実に識別することが出来る。  In addition, by using a plurality of vehicle detection sensor units composed of an ultrasonic sensor and an infrared sensor, the detection of the vehicle in the vehicle detection area is ensured and the vehicle and other moving objects are reliably identified. I can do it.

以下、本発明にかかる二つの車両感知センサーユニットを使用した車両感知装置の実施の形態を添付図面に従って説明する。図1は車両感知装置の概略図、図2は車両感知装置の構成要素を示す動作ブロック図である。尚、感知センサーユニット3と4の構成要素及び動作は同一の為同じ識別番号となっている。  Embodiments of a vehicle sensing device using two vehicle sensing sensor units according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic diagram of a vehicle sensing device, and FIG. 2 is an operation block diagram showing components of the vehicle sensing device. In addition, since the component and operation | movement of the sensor unit 3 and 4 are the same, they are the same identification numbers.

二つの車両感知センサーユニット3と4の片方、例えば車両感知センサーユニット3の感知エリア内に車両が存在すると超音波センサー101から感知信号が超音波回路103に送られ、処理されて車両感知信号として判別回路8に送られる。  When a vehicle is present in one of the two vehicle detection sensor units 3 and 4, for example, in the detection area of the vehicle detection sensor unit 3, a detection signal is sent from the ultrasonic sensor 101 to the ultrasonic circuit 103 and processed as a vehicle detection signal. It is sent to the discrimination circuit 8.

又、車両感知センサーユニット3の感知エリア内の動体物の熱を感知すると赤外線センサー10から感知信号が赤外線回路104に送られ、処理されて動体物感知信号として判別回路8に送られる。  When the heat of the moving object within the sensing area of the vehicle sensor unit 3 is sensed, a sensing signal is sent from the infrared sensor 10 to the infrared circuit 104, processed and sent to the discrimination circuit 8 as a moving object sensing signal.

同様に、車両感知センサーユニット4の感知エリア内に車両が存在すると超音波センサー101から感知信号が超音波回路103に送られ、処理されて車両感知信号として判別回路8に送られる。又、車両感知センサーユニット4の感知エリア内の動体物の熱を感知すると赤外線センサー102から感知信号が赤外線回路104に送られ、処理されて動体物の感知信号として判別回路8に送られる。  Similarly, when a vehicle exists in the detection area of the vehicle detection sensor unit 4, a detection signal is sent from the ultrasonic sensor 101 to the ultrasonic circuit 103, processed, and sent to the determination circuit 8 as a vehicle detection signal. Further, when the heat of the moving object in the sensing area of the vehicle sensor unit 4 is sensed, a sensing signal is sent from the infrared sensor 102 to the infrared circuit 104, processed and sent to the discrimination circuit 8 as a sensing signal of the moving object.

判別回路8は、感知センサーユニット3と4から送られてくる車両感知信号及び動体物の感知信号の種類、数を判別してCPU9を介してフラップ板駆動装置10に制御信号を送る。  The determination circuit 8 determines the type and number of vehicle detection signals and moving object detection signals sent from the detection sensor units 3 and 4 and sends a control signal to the flap plate driving device 10 via the CPU 9.

即ち、車両感知センサーユニット3と4から二つの車両感知信号のみが判別回路8に送られるとフラップ板駆動装置10に作動信号が送られる。次に、二つの車両感知信号と二つ又は一つの動体物感知信号が判別回路8に送られるとCPU9を介してフラップ板作動待機信号がフラップ板駆動装置10に送られ、判別回路8に入力されている動体物感知信号が無くなるまでこの状態が維持される。判別回路8は、二つの動体物感知信号のみが入力された場合はそれに対応した信号をCPU9に送るとCPU9からはフラップ板不作動信号をフラップ板駆動装置10に送る。  That is, when only two vehicle detection signals are sent from the vehicle detection sensor units 3 and 4 to the discrimination circuit 8, an operation signal is sent to the flap plate driving device 10. Next, when two vehicle detection signals and two or one moving object detection signals are sent to the discrimination circuit 8, a flap plate operation standby signal is sent to the flap plate driving device 10 via the CPU 9 and input to the discrimination circuit 8. This state is maintained until there is no moving object sensing signal. When only two moving object detection signals are input, the determination circuit 8 sends a corresponding signal to the CPU 9, and sends a flap plate non-operation signal from the CPU 9 to the flap plate driving device 10.

図3は、超音波センサーと赤外線センサーの放射面を下向きにした感知センサーユニット3(及び4)の一部に任意幅の略1/3円筒状の反射板6を取付けて一定の方向に超音波を放射させる機能を持たせ且つそれら全体を筐体7内に納めた構造となっている為、放射された超音波の大部分を目標に当て、その反射波を受信出来る。その結果、多重反射波が受信器に入るのを阻止出来る、周囲のノイズの影響を阻止出来る等の副次的効果が期待出来る。又、動体物の熱を確実に赤外線センサーに導くことが出来る。  FIG. 3 shows a case in which a substantially 1/3 cylindrical reflecting plate 6 having an arbitrary width is attached to a part of the sensing sensor unit 3 (and 4) with the emission surfaces of the ultrasonic sensor and the infrared sensor facing downward so as to extend in a certain direction. Since it has a structure in which a sound wave is radiated and the entirety thereof is housed in the housing 7, most of the emitted ultrasonic wave can be targeted and the reflected wave can be received. As a result, it is possible to expect secondary effects such as preventing multiple reflected waves from entering the receiver and preventing the influence of ambient noise. In addition, the heat of the moving object can be reliably guided to the infrared sensor.

本願発明に係る車両感知装置の概略図である。1 is a schematic view of a vehicle sensing device according to the present invention. 車両感知装置の構成要素を示すブロック図である。It is a block diagram which shows the component of a vehicle sensing apparatus. 車両感知装置の構成要素の感知センサーユニットの概略図である。It is the schematic of the detection sensor unit of the component of a vehicle detection apparatus. 車両感知装置の適用例を示す従来図である。It is a prior art figure which shows the example of application of a vehicle detection apparatus. 車両感知装置の動作フロー図である。It is an operation | movement flowchart of a vehicle sensing apparatus.

符号の説明Explanation of symbols

1,12 フラップ板
2,13 フラップ板取付部
3,4 感知センサーユニット
5,14 制御部
6 反射板
7 筐体
8 判別回路
9 CPU
10 フラップ板駆動回路
11 ループコイル
101 超音波センサー
102 赤外線センサー
103 超音波回路
104 赤外線回路
DESCRIPTION OF SYMBOLS 1,12 Flap board 2,13 Flap board attaching part 3,4 Sensing sensor unit 5,14 Control part 6 Reflecting plate 7 Case 8 Discriminating circuit 9 CPU
DESCRIPTION OF SYMBOLS 10 Flap board drive circuit 11 Loop coil 101 Ultrasonic sensor 102 Infrared sensor 103 Ultrasonic circuit 104 Infrared circuit

Claims (2)

車両の無断出庫を阻止するフラップ板が設置されている無人有料駐車場において、前記フラップ板を制御する車両検知信号を得る為に超音波センサーユニットと赤外線センサーユニットとを組込んだ二つ以上の感知センサーユニットをフラップ板取付部と一体化させた車両感知装置。In an unmanned toll parking lot where a flap plate is installed to prevent unauthorized removal of vehicles, two or more ultrasonic sensor units and an infrared sensor unit are incorporated to obtain a vehicle detection signal for controlling the flap plate. A vehicle sensing device in which a sensing sensor unit is integrated with a flap plate mounting portion. 前記感知センサーユニットの一部に任意の幅の略1/3円筒状の反射板を設けた請求項1記載の車両感知装置。The vehicle sensing device according to claim 1, wherein a part of the sensing sensor unit is provided with a substantially 1/3 cylindrical reflecting plate having an arbitrary width.
JP2006053761A 2006-02-02 2006-02-02 Vehicle sensing device Withdrawn JP2007207206A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103680155A (en) * 2013-12-13 2014-03-26 青岛天信通软件技术有限公司 Vehicle flow detection device
US9096708B2 (en) 2012-10-23 2015-08-04 Industrial Technology Research Institute Partially esterified epoxy resin and epoxy resin composition applied with the same, and method for preparing the composition
JP2022052197A (en) * 2020-09-23 2022-04-04 住友電気工業株式会社 Detection device for traffic and detection method for traffic

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9096708B2 (en) 2012-10-23 2015-08-04 Industrial Technology Research Institute Partially esterified epoxy resin and epoxy resin composition applied with the same, and method for preparing the composition
CN103680155A (en) * 2013-12-13 2014-03-26 青岛天信通软件技术有限公司 Vehicle flow detection device
JP2022052197A (en) * 2020-09-23 2022-04-04 住友電気工業株式会社 Detection device for traffic and detection method for traffic
JP7452350B2 (en) 2020-09-23 2024-03-19 住友電気工業株式会社 Traffic detection device and traffic detection method

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