JP2004287884A - Parking system management system - Google Patents

Parking system management system Download PDF

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Publication number
JP2004287884A
JP2004287884A JP2003079489A JP2003079489A JP2004287884A JP 2004287884 A JP2004287884 A JP 2004287884A JP 2003079489 A JP2003079489 A JP 2003079489A JP 2003079489 A JP2003079489 A JP 2003079489A JP 2004287884 A JP2004287884 A JP 2004287884A
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Japan
Prior art keywords
management device
parking lot
communication
lot management
signal
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JP2003079489A
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Japanese (ja)
Inventor
Kanji Kimura
寛治 木村
Shinobu Ohashi
忍 大橋
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Nippon Signal Co Ltd
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Nippon Signal Co Ltd
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Priority to JP2003079489A priority Critical patent/JP2004287884A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a parking system management system that facilitates restoration upon a communication failure between a center management device and a parking system management device. <P>SOLUTION: In the parking system management system, the center management device 1 receives parking system state information transmitted from a plurality of communicatively connected parking system management devices 2 to remote-manage parking systems. The center management device 1 comprises a communication failure detection part 4 for detecting a communication failure between the parking system management devices 2 and the device 1. The parking system management devices 2 comprise a reset circuit part 10 for resetting a communication part 9 communicating with the center management device 1 back to an initial state when receiving a telephone call signal from the center management device 1. When the communication failure detection part 4 detects a communication failure, a telephone call signal is transmitted to the reset circuit part 10 of the failed parking system management device 2 to trigger restoration. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、複数の駐車場管理装置をセンター管理装置で遠隔管理する駐車場管理システムに関し、特に、センター管理装置と駐車場管理装置間の通信異常の復旧作業を容易にした駐車場管理システムに関する。
【０００２】
【従来の技術】
従来の駐車場管理システムには、遠隔地の複数の駐車場にそれぞれ備えた駐車場管理装置とセンター管理装置とを通信により接続して、両装置間で、例えば故障または保守情報や売上情報等の駐車場状態情報のデータ通信を常時行うことにより複数の駐車場の状態を一括して管理するようにしたものがある（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開２００１−１７５９９６号公報
【０００４】
【発明が解決しようとする課題】
しかし、このような従来の駐車場管理システムにおいては、センター管理装置と駐車場管理装置間の通信で、センター管理装置からの送信データに対して応答がない場合、または駐車場管理装置から異常データの応答があった場合等の通信異常が発生したときには、保守センターに連絡して異常の発生した駐車場管理装置まで人を派遣させ、該装置の通信部の電源を一旦落とした後に再投入するか、または通信部にリセット信号を与えてリセットする等により駐車場管理装置の通信部を初期状態に戻す必要があった。このように従来のこの種の駐車場管理システムにおいては、通信異常の復旧作業に人手と手間がかかっていた。
【０００５】
そこで、本発明は上記問題点に着目してなされたもので、センター管理装置と駐車場管理装置間の通信異常の復旧作業を容易にした駐車場管理システムを提供することを目的とする。
【０００６】
【課題を解決するための手段】
このために、請求項１の発明は、通信接続された複数の駐車場管理装置から送信される駐車場状態情報をセンター管理装置で受信して駐車場を遠隔管理する駐車場管理システムであって、前記センター管理装置は、前記駐車場管理装置との間の通信異常を検出する通信異常検出部を備え、前記駐車場管理装置は、前記センター管理装置からの電話の呼出信号を受信したときに、前記センター管理装置との間で通信を行う通信部を初期状態に戻すようにリセット動作するリセット回路部を備え、前記通信異常検出部が通信異常を検出した際に、異常の発生した駐車場管理装置の前記リセット回路部に電話の呼出信号を送信して復旧動作をさせるように構成した。
【０００７】
このような構成により、センター管理装置の通信異常検出部でセンター管理装置と駐車場管理装置との間の通信異常を検出すると、駐車場管理装置のリセット回路部に電話の呼出信号を送信し、該電話の呼出信号でリセット回路部にリセット動作をさせ、センター管理装置との間で通信を行う駐車場管理装置の通信部を初期状態に戻す。これにより、センター管理装置と駐車場管理装置間の通信異常の復旧作業を容易にする。
【０００８】
本発明の駐車場管理システムは、具体的には、請求項２のように前記センター管理装置は、前記異常の発生した駐車場管理装置の前記リセット回路部に自動的に電話の呼出信号を送信する復旧制御部を備える構成とするとよい。
【０００９】
さらに、請求項３のように前記リセット回路部は、前記呼出信号の受信回数が所定回数に達したときにリセット動作する構成とするとよい。この場合、前記リセット回路部は、請求項４のように前記呼出信号を検出する呼出信号検出部と、該呼出信号検出部における検出回数をカウントして所定数に達するとタイマトリガ信号を出力するカウンタと、該タイマトリガ信号を受けて所定時間タイマ信号を出力するタイマと、前記通信部を該タイマの出力期間リセットするリレーとを備えて構成するとよい。ここで、前記リレーは、請求項５のように前記通信部の電源を遮断するように構成しても、或いは請求項６のように前記通信部に備えるリセット端子にリセット信号を与えるように構成してもよい。
【００１０】
さらに、請求項７のように前記復旧制御部は、前記呼出信号の送信を終了した後、復旧動作終了の信号を出力し、前記駐車場管理装置への通信を可能とする構成としてもよい。または、請求項８のように前記駐車場管理装置は、前記リセット回路部によるリセット動作が終了すると、前記センター管理装置側に復旧動作終了の信号を送信する構成としてもよい。
【００１１】
また、請求項９のように前記センター管理装置と前記駐車場管理装置との間のデータ送信中にリセット動作がされたとき、データ送信を最初からやり直すようにしてもよい。
【００１２】
そして、前記センター管理装置は、請求項１０のように前記通信異常検出部が通信異常を繰り返して検出したときに、検出回数が所定回数になると復旧不能を報知する構成としてもよい。
【００１３】
【発明の実施の形態】
以下、本発明の実施の形態を添付図面に基づいて詳細に説明する。
図１に、本発明に係る駐車場管理システムの実施形態のブロック図を示す。なお、ここでは個別ロック式の駐車場管理システムを例に説明する。
図１において、本実施形態の駐車場管理システムは、センター管理装置１と、駐車場管理装置２とを有して構成される。なお、駐車場管理装置２は複数存在するものであるが、ここでは説明の便宜から一つで示している。
【００１４】
上記センター管理装置１は、遠隔地の複数の駐車場にそれぞれ備えた駐車場管理装置２を一括して管理するものであり、駐車場管理装置２との間で、例えば故障または保守情報や売上情報等の駐車場状態情報のデータ通信を行うための通信部３と、センター管理装置１及び駐車場管理装置２間の通信状態を常時監視し、通信異常を検出した際には復旧指令信号を出力する通信異常検出部４と、該復旧指令信号を受けて異常の発生した駐車場管理装置２に電話の呼出信号を自動送信して復旧動作をさせる復旧制御部５とを備えて構成する。
【００１５】
上記通信部３は、通信回線を介して駐車場管理装置２の後述の通信部９との間でデータ通信を行うものであり、例えば売上情報等の要求信号を駐車場管理装置２に送信し、各駐車場管理装置２から各駐車場の売上情報等の応答信号を受信したり各駐車場管理装置２から故障または保守情報を受信する等の動作をする。また、通信異常検出部４は、センター管理装置１からのデータ送信に対して駐車場管理装置２の応答がない場合、または異常データの応答があった場合等の通信異常を検出したときに通信部３の通信動作を一時的に停止して、通信異常の生じた駐車場管理装置２の復旧指令信号を出力する。さらに、復旧制御部５は、通信異常の発生した駐車場管理装置２の電話番号データを含む制御信号を出力する制御部６と、電話回線路８により駐車場管理装置２の後述するリセット回路部１０と接続し上記制御信号に基づいて該当する駐車場管理装置２の電話番号を自動的にダイヤルして電話をかける電話通信部７とを備えて構成し、該電話通信部７による電話の呼出信号の発生回数が所定回数に達した後、後述のタイマ信号出力期間に相当する所定時間が経過すると復旧動作終了の信号を上記通信部３に出力し、センター管理装置１から駐車場管理装置２へのデータ送信を可能にさせるようにしている。
【００１６】
上記駐車場管理装置２は、個別ロック駐車場に設置されるものであり、上記センター管理装置１との通信を行う通信部９と、該通信部９をリセットするリセット回路部１０と、複数のパークロック装置１１を制御するパークロック制御部１２と、駐車場状態情報取得部１３と、駐車料金精算機１４を制御する制御部１５とを備えて構成する。
【００１７】
上記通信部９は、所定の制御プログラムに基づいて通信を制御する通信制御部１６と、モデムまたはターミナルアダプタ（ＴＡ）等からなる通信回線接続部１７とを有している。
【００１８】
また、リセット回路部１０は、センター管理装置１の電話通信部７から発せられた電話の呼出信号を受信して上記通信部９を初期状態にリセットするものであり、図２に示すように上記センター管理装置１からの電話の呼出信号を検出して矩形波状の検出信号を出力する呼出信号検出部１８と、該検出信号の矩形数をカウントして該矩形数が所定数に達するとタイマトリガ信号を出力するカウンタ１９と、該タイマトリガ信号を受けて所定時間だけタイマ信号を出力するタイマ２０と、該タイマ信号により駆動される駆動部２１と、該駆動部２１の駆動で励磁されリレー接点を開放して上記通信部９の電源を上記タイマ２０の出力期間だけ遮断するリレー２２とを備えて構成している。なお、カウンタ１９は、例えばディップスイッチからなり、予め設定した数値とカウント数とが一致したときにパルス状のタイマトリガ信号を出力し、タイマ２０の動作開始時刻を決定するようにしている。したがって、上記カウント数の設定は、ディップスイッチの数値設定により任意に行うことができる。
【００１９】
さらに、上記パークロック制御部１２は、駐車場の複数の駐車スペースに備えられたパークロック装置１１を制御信号に基づいて駆動して、上記駐車スペースにおける車両の進退許可状態と進退禁止状態とを選択的に設定できるようにする。即ち、パークロック装置１１の踏み板をせり上げさせ、或いは下げさせる。
【００２０】
さらにまた、上記駐車場状態情報取得部１３は、パークロック装置１１、駐車場に設置した監視カメラ２３及び駐車料金精算機１４の故障情報、及びパークロック装置１１に不正な力が働いたことを知らせる情報、及び監視カメラ２３から出力される監視画像を駐車場状態情報の一つとして取得する。さらに、駐車料金精算機１４において領収書発行等に用いるためのロール紙や駐車券発行のための用紙などの各種消耗品が不足した場合、或いは釣銭が不足した場合には駐車料金精算機１４から保守情報が出力するようになっており、この保守情報も駐車場状態情報の一つとして取得する。
【００２１】
そして、上記制御部１５は、センター管理装置１から発せられた指令に基づいて駐車料金精算機１４の内部回路をリセットするリセット信号を出力するものであり、センター管理装置１により駐車料金精算機１４の復旧処理を行えるようにしている。
【００２２】
次ぎに、上記駐車場管理システムの動作を、図１〜図４を参照して説明する。例えば、図１に示す駐車場管理装置２の通信制御部１６における制御プログラムのバグや通信部９の電源異常により、センター管理装置１との間で正常な通信ができなくなった場合、その通信異常は、センター管理装置１の通信異常検出部４において検出される。そして、通信異常の生じた駐車場管理装置２の番号と、該駐車場管理装置２の復旧を促す復旧指令信号が通信異常検出部４から復旧制御部５に送られる。
【００２３】
復旧制御部５においては、上記復旧指令信号を受けると直ちに通信異常の生じた駐車場管理装置２の電話番号データを含む制御信号を制御部６から電話通信部７に送り、該電話通信部７により上記駐車場管理装置２の電話番号を自動的にダイヤルして呼び出し、電話回線路８を介してリセット回路部１０に電話の呼出信号を送信する。
【００２４】
以下、通信異常の復旧動作の処理過程を図３のフローチャートを参照して説明する。
先ず、ステップＳ１では、図４（ａ）に示すような、例えば１６Ｈｚの信号を約１秒間だけ２秒間隔で発する呼出信号が、センター管理装置１の電話通信部７から通信異常の発生した駐車場管理装置２のリセット回路部１０に対して電話回線路８を介して送信される。リセット回路部１０は、図２に示す呼出信号検出部１８で上記呼出信号を受信すると、これを整流して図４（ｂ）に示すような矩形波状の検出信号に変換する。
【００２５】
次ぎに、ステップＳ２では、上記検出信号の矩形数をカウンタ１９によりカウントして電話の呼出信号の受信回数をカウントする。
【００２６】
さらに、ステップＳ３では、上記矩形数に相当する電話の受信回数が予め設定した所定回数に達すると、カウンタ１９から図４（ｃ）に示すようなタイマトリガ信号を出力する。
【００２７】
そして、ステップＳ４では、このタイマトリガ信号をトリガとしてタイマ２０を起動し所定時間のリセット信号（タイマ信号）を出力する。なお、上記受信回数及びリセット信号（タイマ信号）の時間は、任意に設定可能である。
【００２８】
次ぎに、ステップＳ５では、上記リセット信号により駆動部２１が駆動して通信制御部１６の電源または通信回線接続部１７の電源をＯＮ／ＯＦＦするリレー２２を動作させ、図４（ｅ）に示すようにリレー接点を上記タイマ２０の出力期間だけ開放して電源を遮断する。これにより、通信部９はリセットされて初期状態に戻される。
【００２９】
さらに、ステップＳ６では、センター管理装置１側において、電話の呼出信号を所定回数発生した復旧制御部５で上記タイマ２０の出力期間に相当する所定時間が経過したか否かが判断される。ここで、所定時間が経過した場合（Ｙｅｓ）には、ステップＳ７に進む。
【００３０】
ステップＳ７では、センター管理装置１の復旧制御部５から復旧動作終了の信号が出力され、通信部３に送られて該通信部３を通信可能状態にする（図１参照）。
【００３１】
そして、ステップＳ８では、異常が発生した駐車場管理装置２に対して通信部３よりデータ送信が行われる。なお、データ送信中にリセット回路部１０のリセット動作が行われた場合には、データ送信は改めて最初からやり直しされる。
【００３２】
次ぎに、ステップＳ９では、上記データ送信に対して上記駐車場管理装置２から応答が有ったか否かが判断される。ここで、応答が有った場合（Ｙｅｓ）には、正常な通信が回復したものと判断して上記一連の復旧動作が終了する。一方、ステップＳ９において、上記駐車場管理装置２から応答が無かった場合（Ｎｏ）には、ステップＳ１０に進む。
【００３３】
ステップＳ１０では、上記一連の復旧動作の回数がカウントされ、所定の回数に達したか否かが判断される。即ち、ステップＳ９においてセンター管理装置１からのデータ送信に対して駐車場管理装置２からの応答が無かった場合、所定回数になるまでは、上記駐車場管理装置２から応答が有るまでステップＳ１〜Ｓ９の復旧動作が繰り返されることになる。この場合、繰り返し検出される通信異常は、復旧動作回数として通信異常検出部４でカウントされる。上記復旧動作が所定回数に達すると（Ｙｅｓ）、ステップＳ１１に進む。
【００３４】
そして、ステップＳ１１では、復旧不能の旨を報知し、保守員の派遣要請がなされる。この場合、保守員は、通信異常の発生した駐車場管理装置２の設置場所まで出向き、通信異常の原因解明と回復処置を講ずることになる。
【００３５】
このように本発明の駐車場管理システムによれば、センター管理装置１と駐車場管理装置２間において通信異常が発生した場合には、それを検出して該異常の発生した駐車場管理装置２に対してセンター管理装置１から自動的に電話をかけ、該電話の呼出信号に基づいて駐車場管理装置２の通信部９の電源を一時的に遮断し、通信部９をリセットして通信の復旧を図るようにしているので、通信異常の発生時に人を派遣する必要が無く、人手と手間がかからず復旧作業を容易に行うことができる。
【００３６】
また、通信の復旧動作は、電話の呼出信号に基づいて行われるため、駐車場管理装置２には着信しない。したがって、電話回線は未接続の状態であるので通話料金が発生することがない。
【００３７】
さらに、データ送信中に通信異常が発生したり、または駐車場管理装置に間違い電話がかかりリセット回路部１０でリセット動作が行われた場合には、復旧動作終了後に改めて最初からデータ送信が行われるので送信データの欠落を招くことがない。なお、上記カウンタ１９の設定数を大きくするように調整することにより間違い電話による誤動作を抑制することができる。
【００３８】
なお、上記駐車場管理装置２の通信部９のリセット動作は、図２に示すリレー２２を駆動して前述の通信制御部１６または通信回線接続部１６の電源を一時的に遮断するものに限られず、上記通信部６に備えたリセット端子へリレーを駆動してリセット信号を印加するようにしてもよい。
【００３９】
また、復旧動作終了信号は、上述の実施形態のようなセンター管理装置１側で発生させる構成に限られず、例えば駐車場管理装置２側においてタイマ信号の停止により通信部９からセンター管理装置１の通信部３に送信する構成であってもよい。
【００４０】
さらに、本発明の駐車場管理システムは、通信異常発生時にセンター管理装置１から駐車場管理装置２に自動的に電話をかけるようにしたものに限られず、通信異常を通信異常検出部４で検出した際に、通信異常の発生した駐車場管理装置２の電話番号を報知するようにし、その際人為的に上記駐車場管理装置２のリセット回路部に電話して呼出信号を送信することにより復旧動作をさせるようにしてもよい。
【００４１】
そして、本発明の駐車場管理システムは、個別パークロック式駐車場に限られず、ゲート式駐車場にも適用可能である。
【００４２】
【発明の効果】
以上説明したように本発明の駐車場管理システムによれば、センター管理装置と駐車場管理装置間において通信異常が発生した場合には、それを検出して該異常の発生した駐車場管理装置に対してセンター管理装置側から電話をかけ、該電話の呼出信号に基づいて駐車場管理装置の通信部を初期状態に戻すようにしているので、通信異常の発生時に人を派遣する必要が無く、人手と手間がかからず復旧作業を容易に行うことができる。
【００４３】
また、通信の復旧動作は、電話の呼出信号に基づいて行われるため、駐車場管理装置には着信せず、電話回線は未接続の状態のままであるので通話料金が発生することがない。
【００４４】
さらに、データ送信中に通信異常が発生したり、または駐車場管理装置に間違い電話がかかり復旧動作が開始された場合には、復旧動作終了後に改めて最初からデータ送信が行われるので送信データの欠落を招くことがない。
【００４５】
そして、復旧動作を繰り返し行っても通信異常が回復せず、該復旧動作が所定回数に達した場合には復旧不能を報知して保守員の派遣を要請するようにしているので、駐車場管理装置の通信部の故障に対しても迅速に対応することができる。
【図面の簡単な説明】
【図１】本発明による駐車場管理システムの実施形態を示すブロック図である。
【図２】リセット回路部の構成を示すブロック図である。
【図３】通信異常の復旧動作の処理過程を説明するためのフローチャートである。
【図４】通信異常の復旧動作の処理を行う各信号のタイミングチャートである。
【符号の説明】
１…センター管理装置
２…駐車場管理装置
３，９…通信部
４…通信異常検出部
５…復旧制御部
７…電話通信部
１０…リセット回路部
１８…呼出信号検出部
１９…カウンタ
２０…タイマ
２２…リレー[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a parking lot management system that remotely manages a plurality of parking lot management devices with a center management device, and more particularly to a parking lot management system that facilitates recovery work of communication abnormalities between a center management device and a parking lot management device. .
[0002]
[Prior art]
In a conventional parking lot management system, a parking lot management device provided in a plurality of remote parking lots and a center management device are connected by communication, for example, trouble or maintenance information or sales information, etc. There is a system in which data communication of parking lot state information is constantly performed to collectively manage the states of a plurality of parking lots (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP 2001-175996 A
[Problems to be solved by the invention]
However, in such a conventional parking lot management system, in the communication between the center management device and the parking lot management device, when there is no response to the transmission data from the center management device, or when abnormal data is transmitted from the parking lot management device. When a communication error occurs, such as when a response is received, a maintenance center is contacted and a person is dispatched to the parking management device where the error has occurred, and the communication unit of the device is once powered down and then turned on again. Alternatively, it is necessary to return the communication unit of the parking lot management device to an initial state by resetting by giving a reset signal to the communication unit. As described above, in the conventional parking lot management system of this type, the work of restoring the communication abnormality requires much labor and labor.
[0005]
Then, this invention was made paying attention to the said problem, and an object of this invention is to provide the parking lot management system which facilitated the recovery work of the communication abnormality between a center management apparatus and a parking lot management apparatus.
[0006]
[Means for Solving the Problems]
To this end, the invention according to claim 1 is a parking lot management system that receives parking lot status information transmitted from a plurality of parking lot management devices connected by communication at a center management device and remotely manages the parking lot. The center management device includes a communication abnormality detection unit that detects a communication abnormality with the parking lot management device, and the parking lot management device receives a telephone call signal from the center management device. A reset circuit unit for resetting a communication unit that performs communication with the center management device so as to return the communication unit to an initial state, and when the communication abnormality detection unit detects a communication abnormality, a parking lot in which an abnormality has occurred. A configuration is such that a telephone call signal is transmitted to the reset circuit unit of the management device to perform a recovery operation.
[0007]
With such a configuration, when the communication abnormality detection unit of the center management device detects a communication abnormality between the center management device and the parking lot management device, a telephone call signal is transmitted to the reset circuit unit of the parking lot management device, The reset circuit unit performs a reset operation in response to the call signal of the telephone, and returns the communication unit of the parking lot management device that communicates with the center management device to an initial state. This facilitates the work of restoring the communication abnormality between the center management device and the parking lot management device.
[0008]
Specifically, in the parking lot management system according to the present invention, as in claim 2, the center management device automatically transmits a telephone call signal to the reset circuit unit of the parking lot management device in which the abnormality has occurred. It is good to have the composition provided with the restoration control part which performs.
[0009]
Further, the reset circuit section may be configured to perform a reset operation when the number of times of receiving the call signal reaches a predetermined number. In this case, the reset circuit section includes a calling signal detecting section for detecting the calling signal as described in claim 4, and a counter for counting the number of detections in the calling signal detecting section and outputting a timer trigger signal when the number reaches a predetermined number. And a timer that receives the timer trigger signal and outputs a timer signal for a predetermined time, and a relay that resets the communication unit during an output period of the timer. Here, the relay may be configured to cut off the power of the communication unit as in claim 5, or may be configured to provide a reset signal to a reset terminal provided in the communication unit as in claim 6. May be.
[0010]
Further, as in claim 7, after the transmission of the call signal is terminated, the restoration control unit may output a signal indicating a termination of the restoration operation, and may enable communication with the parking lot management device. Alternatively, the parking lot management device may be configured to transmit a recovery operation end signal to the center management device when the reset operation by the reset circuit unit ends.
[0011]
When a reset operation is performed during data transmission between the center management device and the parking lot management device, the data transmission may be restarted from the beginning.
[0012]
Then, the center management device may be configured such that, when the communication abnormality detecting unit repeatedly detects a communication abnormality, when the number of detections reaches a predetermined number, the center management device notifies that the recovery is impossible.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows a block diagram of an embodiment of a parking lot management system according to the present invention. Here, an individual lock type parking lot management system will be described as an example.
In FIG. 1, the parking lot management system according to the present embodiment includes a center management device 1 and a parking lot management device 2. Although a plurality of parking lot management devices 2 exist, only one is shown here for convenience of explanation.
[0014]
The above-mentioned center management device 1 collectively manages the parking lot management devices 2 provided in a plurality of remote parking lots. The communication unit 3 for performing data communication of parking lot state information such as information and the communication state between the center management device 1 and the parking lot management device 2 are constantly monitored, and when a communication abnormality is detected, a restoration command signal is output. It comprises a communication abnormality detecting unit 4 to be output, and a restoration control unit 5 for receiving the restoration command signal and automatically transmitting a telephone call signal to the parking lot management device 2 in which the abnormality has occurred to perform a restoration operation.
[0015]
The communication unit 3 performs data communication with a communication unit 9 described below of the parking lot management device 2 via a communication line. For example, the communication unit 3 transmits a request signal such as sales information to the parking lot management device 2. The operation of receiving a response signal such as sales information of each parking lot from each parking lot management device 2 or receiving failure or maintenance information from each parking lot management device 2 is performed. The communication abnormality detection unit 4 performs communication when detecting a communication abnormality such as when there is no response from the parking lot management device 2 to data transmission from the center management device 1 or when there is a response to abnormal data. The communication operation of the unit 3 is temporarily stopped, and a recovery command signal of the parking lot management device 2 in which the communication abnormality has occurred is output. Further, the recovery control unit 5 outputs a control signal including a telephone number data of the parking lot management device 2 in which the communication abnormality has occurred, and a reset circuit unit to be described later of the parking lot management device 2 through the telephone line 8. And a telephone communication unit 7 for automatically dialing the telephone number of the corresponding parking lot management device 2 based on the control signal and making a telephone call, and calling the telephone by the telephone communication unit 7. When a predetermined time corresponding to a timer signal output period described later elapses after the number of signal generations reaches the predetermined number, a signal indicating the end of the recovery operation is output to the communication unit 3, and the center management device 1 transmits the parking lot management device 2 To enable data transmission.
[0016]
The parking lot management device 2 is installed in an individual lock parking lot, and includes a communication unit 9 that communicates with the center management device 1, a reset circuit unit 10 that resets the communication unit 9, and a plurality of The parking lock controller 11 controls the park lock device 11, a parking lot status information acquisition unit 13, and a control unit 15 that controls the parking fee settlement machine 14.
[0017]
The communication unit 9 includes a communication control unit 16 that controls communication based on a predetermined control program, and a communication line connection unit 17 including a modem or a terminal adapter (TA).
[0018]
The reset circuit unit 10 receives a telephone call signal issued from the telephone communication unit 7 of the center management device 1 and resets the communication unit 9 to an initial state, as shown in FIG. A call signal detector 18 for detecting a telephone call signal from the center management device 1 and outputting a rectangular wave detection signal, and a timer trigger signal when the number of rectangles of the detection signal is counted and the number of rectangles reaches a predetermined number. , A timer 20 that outputs a timer signal for a predetermined time in response to the timer trigger signal, a drive unit 21 driven by the timer signal, and a relay contact that is excited by the drive of the drive unit 21 to open the relay contact And a relay 22 for shutting off the power supply of the communication section 9 only during the output period of the timer 20. The counter 19 is composed of, for example, a dip switch, and outputs a pulse-like timer trigger signal when a preset numerical value matches the count number, and determines the operation start time of the timer 20. Therefore, the setting of the count number can be arbitrarily performed by setting the numerical value of the dip switch.
[0019]
Further, the parking lock control unit 12 drives the parking lock devices 11 provided in the plurality of parking spaces of the parking lot based on the control signal, and sets a state in which the vehicle in the parking space is allowed to advance and retreat, and a state in which the vehicle is inhibited from traveling. Be able to set selectively. That is, the step board of the parking lock device 11 is raised or lowered.
[0020]
Furthermore, the parking lot state information acquisition unit 13 checks the parking lock device 11, the surveillance camera 23 installed in the parking lot, the failure information of the parking fee adjustment machine 14, and the fact that an improper force has been applied to the parking lock device 11. The information to be notified and the monitoring image output from the monitoring camera 23 are acquired as one of the parking lot state information. Further, when various consumables such as roll paper for use in issuing a receipt or paper for issuing a parking ticket are insufficient in the parking fee adjustment machine 14, or when change is insufficient, the parking fee adjustment machine 14 is used. Maintenance information is output, and this maintenance information is also acquired as one of the parking lot state information.
[0021]
The control unit 15 outputs a reset signal for resetting an internal circuit of the parking fee payment machine 14 based on a command issued from the center management device 1. Recovery processing can be performed.
[0022]
Next, the operation of the parking lot management system will be described with reference to FIGS. For example, when normal communication with the center management device 1 cannot be performed due to a bug in a control program in the communication control unit 16 of the parking lot management device 2 or a power supply abnormality in the communication unit 9 shown in FIG. Is detected by the communication abnormality detection unit 4 of the center management device 1. Then, the number of the parking lot management device 2 in which the communication abnormality has occurred and the restoration command signal for prompting the restoration of the parking lot management device 2 are sent from the communication abnormality detection unit 4 to the restoration control unit 5.
[0023]
Upon receiving the restoration command signal, the restoration control unit 5 sends a control signal including the telephone number data of the parking lot management device 2 in which the communication abnormality has occurred from the control unit 6 to the telephone communication unit 7 immediately after receiving the restoration command signal. Automatically dials and calls the telephone number of the parking lot management device 2, and transmits a telephone call signal to the reset circuit unit 10 via the telephone line 8.
[0024]
Hereinafter, the process of the communication error recovery operation will be described with reference to the flowchart of FIG.
First, in step S1, as shown in FIG. 4A, for example, a call signal that emits a signal of 16 Hz at intervals of about 2 seconds for about 1 second is transmitted from the telephone communication unit 7 of the center management apparatus 1 at which a communication error occurs. The information is transmitted to the reset circuit unit 10 of the parking lot management device 2 via the telephone line 8. When the call signal is received by the call signal detecting section 18 shown in FIG. 2, the reset circuit section 10 rectifies the signal and converts it into a rectangular wave detection signal as shown in FIG.
[0025]
Next, in step S2, the number of rectangles of the detection signal is counted by the counter 19 to count the number of receptions of the telephone call signal.
[0026]
Further, in step S3, when the number of telephone calls corresponding to the above-mentioned number of rectangles reaches a predetermined number, a timer trigger signal as shown in FIG.
[0027]
In step S4, the timer 20 is started with the timer trigger signal as a trigger, and a reset signal (timer signal) for a predetermined time is output. The number of receptions and the time of the reset signal (timer signal) can be arbitrarily set.
[0028]
Next, in step S5, the drive unit 21 is driven by the reset signal to operate the relay 22 for turning on / off the power supply of the communication control unit 16 or the power supply of the communication line connection unit 17, and the operation shown in FIG. As described above, the relay contact is opened only for the output period of the timer 20, and the power is cut off. Thereby, the communication unit 9 is reset and returned to the initial state.
[0029]
Further, in step S6, on the side of the center management apparatus 1, it is determined whether or not a predetermined time corresponding to the output period of the timer 20 has elapsed in the recovery control unit 5 which has generated the telephone call signal a predetermined number of times. Here, if the predetermined time has elapsed (Yes), the process proceeds to step S7.
[0030]
In step S7, a recovery operation end signal is output from the recovery control unit 5 of the center management device 1 and sent to the communication unit 3 to make the communication unit 3 communicable (see FIG. 1).
[0031]
Then, in step S8, the data is transmitted from the communication unit 3 to the parking lot management device 2 in which the abnormality has occurred. When the reset operation of the reset circuit unit 10 is performed during the data transmission, the data transmission is restarted from the beginning.
[0032]
Next, in step S9, it is determined whether or not the parking lot management device 2 has responded to the data transmission. Here, if there is a response (Yes), it is determined that normal communication has been recovered, and the above-described series of recovery operations ends. On the other hand, in step S9, when there is no response from the parking lot management device 2 (No), the process proceeds to step S10.
[0033]
In step S10, the number of the series of recovery operations is counted, and it is determined whether or not the number has reached a predetermined number. That is, when there is no response from the parking lot management apparatus 2 to the data transmission from the center management apparatus 1 in step S9, steps S1 to S1 are performed until a response is received from the parking lot management apparatus 2 until a predetermined number of times is reached. The recovery operation in S9 is repeated. In this case, the communication abnormality that is repeatedly detected is counted by the communication abnormality detection unit 4 as the number of recovery operations. When the above-mentioned restoration operation reaches a predetermined number of times (Yes), the process proceeds to step S11.
[0034]
Then, in step S11, the fact that restoration is impossible is notified, and a dispatch of a maintenance person is made. In this case, the maintenance staff goes to the installation location of the parking lot management device 2 where the communication abnormality has occurred, and takes the cause of the communication abnormality and performs recovery measures.
[0035]
As described above, according to the parking lot management system of the present invention, when a communication error occurs between the center management device 1 and the parking lot management device 2, it is detected and detected. , A call is automatically made from the center management device 1, the power of the communication unit 9 of the parking lot management device 2 is temporarily cut off based on the call signal of the call, the communication unit 9 is reset, and Since recovery is performed, there is no need to dispatch a person when a communication error occurs, and the recovery work can be easily performed without any labor and labor.
[0036]
In addition, since the communication restoration operation is performed based on a telephone call signal, the communication does not arrive at the parking lot management device 2. Therefore, since the telephone line is not connected, no call charge is generated.
[0037]
Further, when a communication error occurs during data transmission, or when a wrong call is made to the parking lot management device and the reset operation is performed by the reset circuit unit 10, the data transmission is performed again from the beginning after the end of the recovery operation. Therefore, the transmission data is not lost. It should be noted that the malfunction caused by an erroneous call can be suppressed by adjusting the set number of the counter 19 to be large.
[0038]
Note that the reset operation of the communication unit 9 of the parking lot management device 2 is not limited to the operation of driving the relay 22 shown in FIG. 2 to temporarily shut off the power of the communication control unit 16 or the communication line connection unit 16. Instead, a relay may be driven to a reset terminal provided in the communication unit 6 to apply a reset signal.
[0039]
Further, the recovery operation end signal is not limited to the configuration generated on the center management device 1 side as in the above-described embodiment. For example, the stop of the timer signal on the parking lot management device 2 side causes the communication unit 9 to transmit the recovery signal from the center management device 1. A configuration for transmitting to the communication unit 3 may be employed.
[0040]
Further, the parking lot management system of the present invention is not limited to a system in which the center management device 1 automatically makes a call to the parking lot management device 2 when a communication error occurs. In this case, the telephone number of the parking lot management device 2 in which the communication abnormality has occurred is notified, and at that time, the call is reset by sending a call signal by calling the reset circuit portion of the parking lot management device 2 artificially. The operation may be performed.
[0041]
And the parking lot management system of this invention is applicable not only to an individual park lock type parking lot but to a gate type parking lot.
[0042]
【The invention's effect】
As described above, according to the parking lot management system of the present invention, when a communication abnormality occurs between the center management device and the parking lot management device, the communication abnormality is detected, and the abnormality is detected by the parking lot management device. On the other hand, since a call is made from the center management device side and the communication unit of the parking lot management device is returned to the initial state based on the call signal of the telephone, there is no need to dispatch a person when a communication abnormality occurs, Restoration work can be easily performed without labor and labor.
[0043]
In addition, since the communication restoration operation is performed based on the telephone call signal, the call is not received by the parking lot management device, and the telephone line remains unconnected, so that there is no call charge.
[0044]
In addition, if a communication error occurs during data transmission, or if a wrong call is made to the parking lot management device and a recovery operation is started, data transmission is performed again from the beginning after the recovery operation is completed, so transmission data is lost. Never invite.
[0045]
Even if the recovery operation is repeatedly performed, the communication abnormality is not recovered, and when the recovery operation reaches a predetermined number of times, it is notified that recovery is impossible and a dispatch of a maintenance person is requested. It is possible to quickly respond to a failure of the communication unit of the device.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of a parking lot management system according to the present invention.
FIG. 2 is a block diagram illustrating a configuration of a reset circuit unit.
FIG. 3 is a flowchart for explaining a processing procedure of a communication abnormality recovery operation;
FIG. 4 is a timing chart of each signal for performing a communication error recovery operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Center management device 2 ... Parking lot management device 3, 9 ... Communication part 4 ... Communication abnormality detection part 5 ... Recovery control part 7 ... Telephone communication part 10 ... Reset circuit part 18 ... Call signal detection part 19 ... Counter 20 ... Timer 22 ... Relay

Claims (10)

通信接続された複数の駐車場管理装置から送信される駐車場状態情報をセンター管理装置で受信して駐車場を遠隔管理する駐車場管理システムであって、
前記センター管理装置は、前記駐車場管理装置との間の通信異常を検出する通信異常検出部を備え、
前記駐車場管理装置は、前記センター管理装置からの電話の呼出信号を受信したときに、前記センター管理装置との間で通信を行う通信部を初期状態に戻すようにリセット動作するリセット回路部を備え、
前記通信異常検出部が通信異常を検出した際に、異常の発生した駐車場管理装置の前記リセット回路部に電話の呼出信号を送信して復旧動作をさせるように構成したことを特徴とする駐車場管理システム。A parking lot management system that receives parking lot status information transmitted from a plurality of parking lot management devices connected by communication at a center management device and remotely manages a parking lot,
The center management device includes a communication abnormality detection unit that detects a communication abnormality with the parking lot management device,
The parking lot management device, when receiving a call signal of the telephone from the center management device, a reset circuit unit that performs a reset operation to return the communication unit that performs communication with the center management device to the initial state. Prepare,
When the communication abnormality detector detects a communication abnormality, the communication abnormality detecting unit is configured to transmit a telephone call signal to the reset circuit unit of the parking lot management device in which the abnormality has occurred to perform a recovery operation. Parking lot management system. 前記センター管理装置は、前記異常の発生した駐車場管理装置の前記リセット回路部に自動的に電話の呼出信号を送信する復旧制御部を備える構成としたことを特徴とする請求項１に記載の駐車場管理システム。2. The center management device according to claim 1, wherein the center management device includes a restoration control unit that automatically transmits a telephone call signal to the reset circuit unit of the parking lot management device in which the abnormality has occurred. Parking management system. 前記リセット回路部は、前記呼出信号の受信回数が所定回数に達したときにリセット動作する構成としたことを特徴とする請求項１または２に記載の駐車場管理システム。The parking lot management system according to claim 1, wherein the reset circuit is configured to perform a reset operation when the number of times of receiving the call signal reaches a predetermined number. 前記リセット回路部は、前記呼出信号を検出する呼出信号検出部と、該呼出信号検出部における検出回数をカウントして所定数に達するとタイマトリガ信号を出力するカウンタと、該タイマトリガ信号を受けて所定時間タイマ信号を出力するタイマと、前記通信部を該タイマの出力期間リセットするリレーとを備えて構成したことを特徴とする請求項３に記載の駐車場管理システム。The reset circuit unit includes: a calling signal detecting unit that detects the calling signal; a counter that counts the number of detections in the calling signal detecting unit and outputs a timer trigger signal when a predetermined number is reached; 4. The parking lot management system according to claim 3, further comprising: a timer that outputs a time timer signal; and a relay that resets the communication unit during an output period of the timer. 5. 前記リレーは、前記通信部の電源を遮断するように構成したことを特徴とする請求項４に記載の駐車場管理システム。The parking lot management system according to claim 4, wherein the relay is configured to shut off a power supply of the communication unit. 前記リレーは、前記通信部に備えるリセット端子にリセット信号を与えるように構成したことを特徴とする請求項４に記載の駐車場管理システム。The parking lot management system according to claim 4, wherein the relay is configured to provide a reset signal to a reset terminal provided in the communication unit. 前記復旧制御部は、前記呼出信号の送信を終了した後、復旧動作終了の信号を出力し、前記駐車場管理装置への通信を可能とする構成としたことを特徴とする請求項２〜５のいずれか一つに記載の駐車場管理システム。The recovery control unit outputs a recovery operation end signal after terminating the transmission of the calling signal, and enables communication with the parking lot management device. A parking lot management system according to any one of the above. 前記駐車場管理装置は、前記リセット回路部によるリセット動作が終了すると、前記センター管理装置側に復旧動作終了の信号を送信する構成としたことを特徴とする請求項１〜５のいずれか一つに記載の駐車場管理システム。6. The parking lot management device according to claim 1, wherein when the reset operation by the reset circuit unit is completed, a signal of a recovery operation end is transmitted to the center management device side. Parking management system according to the above. 前記センター管理装置と前記駐車場管理装置との間のデータ送信中にリセット動作がされたとき、データ送信を最初からやり直すことを特徴とする請求項１〜８のいずれか一つに記載の駐車場管理システム。The parking system according to any one of claims 1 to 8, wherein when a reset operation is performed during data transmission between the center management device and the parking lot management device, data transmission is restarted from the beginning. Parking lot management system. 前記センター管理装置は、前記通信異常検出部が通信異常を繰り返して検出したときに、検出回数が所定回数になると復旧不能を報知する構成としたことを特徴とする請求項１〜９のいずれか一つに記載の駐車場管理システム。10. The center management device according to claim 1, wherein, when the communication abnormality detection unit repeatedly detects a communication abnormality, the center management device notifies the user that recovery is impossible when the number of detections reaches a predetermined number. Parking management system according to one.
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