JP3607360B2 - Product sales registration data processing device - Google Patents

Product sales registration data processing device Download PDF

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JP3607360B2
JP3607360B2 JP13005595A JP13005595A JP3607360B2 JP 3607360 B2 JP3607360 B2 JP 3607360B2 JP 13005595 A JP13005595 A JP 13005595A JP 13005595 A JP13005595 A JP 13005595A JP 3607360 B2 JP3607360 B2 JP 3607360B2
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wireless
communication
master station
terminal
station
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JPH08329352A (en
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恒治 寺原
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Toshiba TEC Corp
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Toshiba TEC Corp
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Description

【0001】
【産業上の利用分野】
本発明は、複数のターミナル機と上位機とからなり、各ターミナル機と上位機との間のデータ送受信を各ターミナル機に設けられた無線子局と上位機側に設けられた無線親局とを介して無線通信により実行可能に構成された商品販売登録データ処理装置に関する。
【0002】
【従来の技術】
図7において、各ターミナル機10と上位機30との間のデータ送受信を、各ターミナル機10に設けられた無線子局20と上位機30側に設けられた無線親局40とを介して、無線通信により実行可能に構成された商品販売登録データ処理装置が知られている。
【0003】
1台の無線親局(例えば、40A)に無線接続可能な無線子局(例えば、10A1〜10AN)の最大台数は、無線親局(40A)の無線パワーや処理速度等によって決まる。したがって、他の無線親局(例えば、40B)と無線子局(例えば、10A1)との間では無線通信できない。
【0004】
ここに、例えばターミナル機10A1で商品コードを入力すると、ターミナル機10A1から当該無線子局20A1に送信伝文(例えば、“商品データの問合せ”)が送信(図9のST70,71)される。無線子局20A1は、これを受信(図8のST60)すると、当該無線親局40Aに送信伝文を無線送信(ST61)する。無線親局40Aは、これ(受信伝文)を受信(図10のST82)すると、上位機30へデータ通信回線1を介して送信(ST83)する。上位機30は、マスターファイルを検索して商品データを求め、これを送信伝文として無線親局40Aに送信する。
【0005】
すると、無線親局40Aは、上位機30から受信(図10のST80)した送信伝文を無線子局20A1に無線送信(ST81)する。この無線子局20A1は、受信伝文として受信(図8のST62)し、これをターミナル機10A1に送信(ST63)する。かくして、ターミナル機10A1は、受信(図9のST72)した受信伝文(商品データ)を用いて商品登録(受信伝文処理)する(ST73)。
【0006】
なお、送受信伝文としては、上記商品コードや商品データに限られず、上位機30から各ターミナル機10への設定データ,上位機30が各ターミナル機10から回収する売上データ等々も含まれる。
【0007】
【発明が解決しようとする課題】
ところで、かかる無線通信方式装置は、各ターミナル機10と上位機30とを通信用回線で結んだ有線通信方式に比較してその通信用ケーブルの布設やそのルート変更等を一掃できるので、各ターミナル機10の移動を伴う店内レイアウトを容易に行えるという利益を有する。しかし、各無線親局40と当該各無線子局20との間の無線通信状態が異常になる場合がある。
【0008】
ターミナル機10の近傍に電子機器(例えば、電子レンジ,複写機,可搬無線機等)が通過したりあるいは近接配設された場合の電波障害や、無線子局20に故障が発生したり、無線親局40側の電波障害や故障が発生したりするからである。しかも、無線親局(例えば、40A)に無線接続可能な無線子局20A1〜20ANは、例えば同一売場内に近接配設される場合が多いので、複数のターミナル機10が同時的に無線通信状態異常になることが起り易い。
【0009】
かくして、従来は無線通信状態が異常となった場合は、商品登録等を中断・中止しなければならないのでオペレータの業務能率や顧客サービスが大幅に低下する。さらに、顧客に他のターミナル機10へ移動してもらう場合には、再入力のもとに商品登録をやり直さなければならないので、業務能率が一段と低下しかつ顧客の信用を失墜しかねない。
【0010】
本発明の目的は、無線通信状態が異常になった場合でも電力供給線を利用した有線通信によりターミナル機と当該無線親局との間のデータ送受信を続行できる商品販売登録データ処理装置を提供することにある。
【0011】
【課題を解決するための手段】
無線通信方式であっても構成機器には必ず駆動電力が供給され、かつ各構成機器の元電源を同一とするように構築されている場合が多い。また、各構成機器と元電源とは、例えば電灯線の如く有線で接続されている。
【0012】
本発明は、この点に着目し、各無線子局側および当該無線親局側のいずれ側に無線通信状態の異常が発生した場合でも、各ターミナル機と当該無線親局との間のデータ送受信を共通の電力供給線を利用した有線通信方式により継続実行可能に構成したものである。
【0013】
すなわち、請求項1の発明は、複数のターミナル機と上位機とからなり、各ターミナル機と上位機との間のデータ送受信を各ターミナル機に設けられた無線子局と上位機側に設けられた無線親局とを介して無線通信により実行可能に構成された商品販売登録データ処理装置において、前記各ターミナル機と前記無線親局とを電力供給線を介して有線通信可能に形成するとともに、前記各無線子局に前記無線親局との間の無線通信状態に異常があるか否かを検出する子側無線通信状態検出手段を設け、かつ各ターミナル機に当該各無線子局で無線通信状態が異常であると検出された場合に該電力供給線を介して前記無線親局と有線通信可能に切替える子側異常時通信切替制御手段を設けた、ことを特徴とする。
【0014】
また、請求項2の発明では、複数のターミナル機と上位機とからなり、各ターミナル機と上位機との間のデータ送受信を各ターミナル機に設けられた無線子局と上位機側に設けられた無線親局とを介して無線通信により実行可能に構成された商品販売登録データ処理装置において、前記各ターミナル機と前記無線親局とを電力供給線を介して有線通信可能に形成するとともに、前記無線親局に前記各無線子局との間の無線通信状態に異常があるか否かを検出する親側無線通信状態検出手段と,無線通信状態が異常であると検出された場合に該電力供給線を介して当該各無線子局に対応する各ターミナル機と有線通信可能に切替える親側異常時通信切替制御手段とを設けた、ことを特徴とする。
【0015】
【作用】
上記構成による請求項1の発明の場合、ある無線子局の子側無線通信状態検出手段が、当該無線親局との間の無線通信状態が異常であると検出すると、当該ターミナル機に知らせる。すると、当該ターミナル機の子側異常時通信切替制御手段が、電力供給線を介して当該無線親局と有線通信可能に切替える。したがって、無線通信異常が発生しても、ターミナル機と当該無線親局との間で有線通信により直接的にデータ送受信できる。
【0016】
また、請求項2の発明の場合、ある無線親局の親側無線通信状態検出手段が、当該無線子局との間の無線通信状態が異常であると検出すると、親側異常時通信切替制御手段が電力供給線を介して当該無線子局に対応するターミナル機と有線通信可能に切替える。したがって、各無線親局側に無線通信異常が発生しても無線親局とターミナル機との間で有線通信により直接的にデータ送受信できる。
【0017】
【実施例】
以下、本発明の実施例を図面を参照して説明する。
本商品販売登録データ処理装置は、図1,図2に示す如く、基本的構成(10,20,30,40)が従来例(図7)の場合と同様とされているが、各ターミナル機10と無線親局40とを電力供給線5を介して有線通信可能に形成するとともに各無線子局20に子側無線通信状態検出手段(21,22)を設けかつ各ターミナル機10に子側異常時通信切替制御手段(11,12)を設け、無線子局20と当該無線親局40との間に無線通信状態異常が発生した場合でも電力供給線5を利用した有線通信に切替えて各ターミナル機10と当該無線親局40との間で直接的にデータ送受信可能に構成されている。
【0018】
また、各無線親局20に親側無線通信状態検出手段(41,42)と親側異常時通信切替制御手段(41,42)とを設け、無線親局40と当該各無線子局20との間に無線通信状態異常が発生した場合でも電力供給線5を利用した有線通信に切替えて無線親局40と当該各無線子局20に対応する各ターミナル機10との間で直接的にデータ送受信可能に構成してある。
【0019】
図1において、各無線親局40A〜40Nおよび各ターミナル機10A1〜10AN,…,10N1〜10NNは、共通の電力供給線(例えば、電灯線)5で電源3に接続され、駆動電力が供給される。なお、各無線子局20A1〜20AN,…,20N1〜20NNの駆動電力は、当該各ターミナル機10A1〜10AN,…,10N1〜10NNから間接供給されるものと形成されている。
【0020】
ここに、各ターミナル機(T/M)10は、図1に示す如く、CPU11,ROM12,RAM13,通信回路14,無線機用インターフェイス(I/F)15,電力供給線インターフェイス(I/F)16,入出力手段(キーボード,スキャナ,表示器,プリンタ,ドロワ等)17を含み、商品登録業務等を実行可能に形成されている。
【0021】
通信回路14は、無線チャンネル14Aと有線チャンネル14Bとを有し、いずれのチャンネル14A,14Bも常時的に無線受信および有線受信が可能に起動(図5のST20)するものと形成してある。ここに、後記する無線親局40側通信回路44の無線チャンネル44Aと有線チャンネル44Bとの関係から、ターミナル機10と無線親局40との電力供給線5を介した直接的な有線通信が可能となる。
【0022】
この無線機インターフェイス15に有線接続された各無線子局(ST)20は、CPU21,ROM22,RAM23,無線回路24A(アンテナ25)および有線回路24Bを含み、有線接続されたターミナル機10から受信(図4のST13のYES)した送信伝文を当該無線親局40へ無線送信でき(ST14)、かつ当該無線親局40から無線通信により受信した受信伝文をターミナル機10に送信可能(ST16)に形成されている。
【0023】
また、各無線親局(MT)40は、図2に示す如く、CPU41,ROM42,RAM43,通信回路44,無線回路45(アンテナ45A),電力供給線インターフェイス(I/F)46および有線回路47を含み、上位機30から受信(図6のST45のYES)した送信伝文を無線子局20へ無線送信(ST48)できかつ無線子局20から受信(ST51のYES)した受信伝文を上位機30へデータ通信回線1を介して送信(ST52)できる。
【0024】
この通信回路44は、無線チャンネル44Aと有線チャンネル44Bとを有し、いずれのチャンネル44A,44Bも常時的に起動(図6のST44)されるものと形成してある。何時でもターミナル機10から電力供給線5を介した送信伝文を受信可能とするためである。
【0025】
なお、各構成機器(40,20,10)間で送・受信する送・受信伝文は、図3(A1)に示す“ヘッダ部”とデータ部”とからなり、かつヘッダ部は同(A2)に示す内容とされている。
【0026】
ここに、各無線子局20に設けられた子側無線通信状態検出手段は、当該無線親局40との間の無線通信状態が異常(電波障害による通信不調・不能や自局の故障も含む)であるか否かを検出する手段で、子側無線通信状態検出制御プログラムを格納させたROM22とCPU21とから形成され、図4のST10で実行される。
【0027】
この検出データは、当該ターミナル機10へ図3(B2)に示す伝文として送信(ST11)される。無線子局20からデータを受信(図5のST21のYES)したターミナル機10では、その受信時に子側状態記憶制御手段(CPU11,ROM12)が働く。すなわち、異常検出データである(ST22のYES)と、図2のRAM13内のフラグエリア13FにフラグF1を“1”にセット(ST23)する。また、正常検出データである(ST24のYES)である場合には、フラグF1を“0”にセット(ST25)する。もとより、図3(B1)に示す正常な受信伝文であれば受信伝文処理(ST26)する。
【0028】
次に、子側異常時通信切替制御手段は、当該無線子局20で無線通信状態が異常であると検出された場合に電力供給線5を介して当該ターミナル機10と当該無線親局40との間で有線通信可能に切替える手段で、子側異常時通信切替制御プログラムを格納させたROM12とCPU11とから形成され、図5のST29,ST31で実行される。
【0029】
この実施例の場合は、無線チャンネル14Aおよび有線チャンネル14Bのいずれも常時的に起動(図5のST20)されているので、ターミナル機10は無線子局20および当該無線親局40のいずれからでも受信伝文〔図3(B1),(D)〕を受信(ST21)できる。しかし、ターミナル機10内で発生した送信伝文の送信の際は、どちらのチャンネルとすべきか特定する必要がある。つまり、送信先を決める必要がある。
【0030】
かくして、子側異常時通信切替制御手段(11,12)は、自機10内で送信伝文が発生(ST27のYES)しかつ子側無線通信状態検出手段(21,22)で異常検出された場合つまりこの実施例ではF1=1の場合(ST28のYES)に、有線チャンネル14Bつまり有線通信に切替える(ST31)。これにより、送信伝文〔図3(C)〕を無線親局40へ直接的に有線送信(ST32)することができる。
【0031】
異常が消滅したためにF1=0とされた場合(ST28のYES)には、再び通常の無線通信(無線チャンネル14A)に切替える(ST29)。したがって、送信伝文は、無線子局20から当該無線親局40へ無線送信(ST30)される。
【0032】
一方、無線親局40側の親側無線通信状態検出手段は、当該各無線子局20との間の無線通信状態が異常(電波障害による通信不調・不能や自局故障も含む)であるか否かを検出する手段で、親側無線通信状態検出制御プログラムを格納させたROM42とCPU41とから形成され、図6のST40で実行される。
【0033】
すると、親側状態記憶制御手段(41,42)が、無線通信状態が異常と検出された場合(ST41のYES)、RAM43内のフラグエリア43FにフラグF2を“1”にセット(ST42)する。正常検出の場合(ST41のNO)には、“0”をセット(ST43)する。
【0034】
また、親側異常時通信切替制御手段は、無線通信状態が異常であると検出された場合(ST41のYES)に電力供給線5を介して当該無線子局20に対応するターミナル機10と有線通信可能に切替える手段で、親側異常時通信切替制御プログラムを格納させたROM42とCPU41とから形成され、図6のST49で実行される。
【0035】
この切替えは、ターミナル機10側の場合(図5のST20)と同様に両チャンネル44A,44Bが常時的に起動(ST44)されていることから、上位機30から送信伝文を受信(ST45)した場合に切替える(ST49)。したがって、送信伝文〔図3(D)〕は、電力供給線5を介した有線送信によってターミナル機10へ直接的に送信(ST50)される。
【0036】
無線通信状態が正常となった場合(ST46のYES)は、常法による無線通信(無線チャンネル44A)に切替え(ST47)て、送信伝文を当該無線子局20へ無線送信(ST48)する。
【0037】
なお、無線通信による無線子局20および有線通信によるターミナル機10のいずれから受信(ST51のYES)した場合でも、無線親局40は当該受信伝文を上位機30へデータ通信回線1を介して送信する(ST52)。
【0038】
次に、この実施例の作用を説明する。
例えば、ターミナル機10A1で送信伝文が発生(図5のST27のYES)すると、F1=0であるから無線通信(無線チャンネル14A)に切替えて当該無線子局20A1に送信する(ST28のYES,ST29,ST30)。すると、無線子局20A1は受信(図4のST13のYES)した送信伝文を無線親局40Aに無線送信(ST14)する。これを無線チャンネル44Aを介して受信(図6のST51のYES)した無線親局40Aは、データ通信回線1を介して上位機30へ、受信伝文として送信(ST52)する。
【0039】
一方、上位機30から送信伝文を受信(ST45のYES)した無線親局40Aは、F2=0であるから無線通信(無線チャンネル44A)によって送信伝文を当該無線子局20A1に無線送信する(ST46のYES,ST47,ST48)。これを受信(図4のST15のYES)した無線子局20A1は、これを受信伝文〔図3(B1)〕としてターミナル機10A1に送信(ST16)する。ターミナル機10A1は、無線チャンネル14Aを介してこれを受信(図5のST21のYES,ST22のNO,ST24のNO)すると、受信伝文処理(ST26)する。
【0040】
ここで、無線子局20A1内の子側無線通信状態検出手段(21,22)が当該無線親局40Aとの間の無線通信状態に異常があると検出すると、当該ターミナル機10A1にその検出データを送信(図4のST10,11)する。この検出データは、図3(B2)に示す送信伝文であり、通信異常内容も含まれる。この場合(ST12のYES)は、無線通信は中止される。
【0041】
ターミナル機10A1側では、受信(図5のST21のYES)したデータが無線通信状態異常検出データである(ST22のYES)から、CPU11はフラグエリア13FにフラグF1を“1”にセットする(ST23)。
【0042】
ここに、子側異常時通信切替制御手段(11,12)は、送信伝文〔図3(C)〕が発生した場合(図5のST27のYES)にF=1である(ST28のNO)から、通信回路14を有線チャンネル14Bに切替え(ST31)、電力供給線5を介して無線親局40A1に有線送信(ST32)する。
【0043】
これを受信(図6のST51のYES)した無線親局40A1は、データ通信回線1を介して上位機30へ送信(ST52)する。無線子局20A1から無線通信によって受信した場合と同様に取扱う。
【0044】
なお、この実施例の場合は、受信伝文〔図3(C)〕をターミナル機10A1から有線通信により受信(ST51のYES)した場合には、CPU41がフラグ“F2”を“1”にセット(ST42)する。つまり、親側異常時通信切替制御手段(41,42)は、その受信伝文〔図3(C)〕の内容から無線通信異常(ST46のNO)として、有線チャンネル44Bに自動的に切替える(ST49)。
【0045】
かくして、上位機30から送信伝文を受信(図6のST45のYES)すると、無線親局40A1は、その送信伝文〔図3(D)〕を電力供給線5を介してターミナル機10A1に有線送信(ST50)する。ターミナル機10A1は、有線チャンネル14Bを介して受信(図5のST21のYES,ST22のNO、ST24のNO)したデータ(受信伝文)について処理(ST26)する。
【0046】
一方、無線親局40A内の親側無線通信状態検出手段(41,42)によって異常が検出された場合(図6のST40,ST41のYES)は、CPU41がフラグF2を“1”にセットする。したがって、上位機30から送信伝文〔図3(D)〕を受信(ST45のYES)に、親側異常時通信切替制御手段(11,12)は有線通信(有線チャンネル44B)に切替える(ST49)。そして、電力供給線5を介してターミナル機10A1に有線送信(ST50)する。
【0047】
これを受信(図5のST21のYES)したターミナル機10A1は、受信伝文処理(ST26)する。この際、CPU11は、この受信伝文〔図3(D)〕の内容から異常と判別しフラグF1を“1”にセット(ST23)する。つまり、子側異常時通信切替制御手段(11,12)は、送信伝文〔図3(C)〕を送信する場合に、有線チャンネル14Bに切替える。
【0048】
なお、無線子局20および無線親局40の両無線通信状態検出手段が正常と検出すれば、つまり両フラグF1,F2がともに“0”とされれば、有線通信から元の無線通信に自動的に復帰できる。したがって,取扱いも非常に容易である。
【0049】
しかして、この実施例によれば、各ターミナル機10と無線親局40とを電力供給線5を介して有線通信可能に形成するとともに各無線子局20に子側無線通信状態検出手段(21,22)を設けかつ各ターミナル機10に子側異常時通信切替制御手段(11,12)を設け、無線子局20と当該無線親局40との間に無線通信状態異常が発生した場合でも電力供給線5を利用した有線通信に切替えて各ターミナル機10と当該無線親局40との間で直接的にデータ送受信可能に構成されているので、無線通信状態が異常になった場合でも電力供給線5を利用した有線通信によりターミナル機と当該無線親局との間のデータ送受信を続行できる。
【0050】
また、各無線親局20に親側無線通信状態検出手段(41,42)と親側異常時通信切替制御手段(41,42)とを設け、無線親局40と当該各無線子局20との間に無線通信状態異常が発生した場合でも電力供給線5を利用した有線通信により無線親局40と当該各無線子局20に対応する各ターミナル機10との間で直接的にデータ送受信可能に構成されているので、上記の場合と同様に無線通信状態が異常になった場合でも電力供給線5を利用した有線通信に切替えてターミナル機と当該無線親局との間のデータ送受信を続行できる。
【0051】
つまり、無線通信状態が異常であることを、子側無線通信状態検出手段(21,22)および親側無線通信状態検出手段(41,42)のいずれかが先に検出した時点から、有線通信に自動的に切替えられる。すなわち、ロスタイムを極小とすることができる。
【0052】
また、子・親側無線通信状態検出手段(21,22、41,42)が異常と検出した場合にはフラグF1,F2をそれぞれ“1”にセットするものと形成されているので、ターミナル機10側および無線親局40側のいずれかに送信伝文が発生したときに、子・親側異常時通信切替制御手段(11,12、41,42)は有線チャンネル14B、44Bに切替えればよい。すなわち、無線通信が正常中にその異常が検出された場合に備え両チャンネル14A,14B、44A,44Bを常時的に起動させてあるわけである。したがって、無線通信状態が何時異常となっても対応できる。
【0053】
また、無線子局20が無線通信状態異常を検出した際にはターミナル機10から無線親局40へ有線送信する送信伝文〔図3(C)〕に通信異常フラグを含めかつ無線親局40が無線通信状態異常を検出した際には無線親局40からターミナル機10へ有線送信する送信伝文〔図3(D)〕に通信異常フラグを含めるものとされるとともに、その送信伝文を受信した無線親局40およびターミナル機10がフラグF2,F1をそれぞれ自動的に“1”とセットするものと形成されているので、無線子局20および無線親局40のいずれで無線通信異常を検出された場合でも、協調できかつ直ちに有線通信(送信)に切替えられる。また、正常に戻れば直ちに無線通信に自動復帰させられる。かくして、子側無線通信状態検出手段(21,22)および親側無線通信状態検出手段(41,42)のいずれか一方のみを設ければその他方を設けなくとも実施することが可能となる。
【0054】
また、有線通信が電力供給線5を介して行うものとされているので、低コストで具現化でき実用性,適用性が広い。
【0055】
【発明の効果】
請求項1の発明によれば、各ターミナル機と無線親局とを電力供給線を介して有線通信可能に形成するとともに各無線子局に子側無線通信状態検出手段を設けかつ各ターミナル機に子側異常時通信切替制御手段を設け、無線子局と当該無線親局との間に無線通信状態異常が発生した場合でも電力供給線を利用した有線通信に切替えて各ターミナル機と当該無線親局との間で直接的にデータ送受信可能に構成されているので、無線通信状態が異常になった場合でも電力供給線を利用したた有線通信によりターミナル機と当該無線親局との間のデータ送受信を続行できる。よって、店舗側の業務能率を大幅に向上できるとともに顧客満足により応えられる。
【0056】
また、請求項2の発明によれば、各無線親局に親側無線通信状態検出手段と親側異常時通信切替制御手段とを設け、無線親局と当該各無線子局との間に無線通信状態異常が発生した場合でも電力供給線を利用した有線通信に切替えて無線親局と当該各無線子局に対応する各ターミナル機との間で直接的にデータ送受信可能に構成されているので、請求項1の発明の場合と同様に、無線通信状態が異常になった場合でも電力供給線を利用した有線通信によりターミナル機と当該無線親局との間のデータ送受信を続行できる。
【図面の簡単な説明】
【図1】本発明の実施例を示す全体構成図である。
【図2】同じく、ターミナル機,無線子局および無線親局の構成を詳細に説明するためのブロック図である。
【図3】同じく、送・受信伝文の内容を説明するための図である。
【図4】同じく、無線子局側の動作を説明するためのフローチャートである。
【図5】同じく、ターミナル機側の動作を説明するためのフローチャートである。
【図6】同じく、無線親局側の動作を説明するためのフローチャートである。
【図7】従来例を説明するための図である。
【図8】同じく、無線子局側の動作を説明するためのフローチャートである。
【図9】同じく、ターミナル機側の動作を説明するためのフローチャートである。
【図10】同じく、無線親局側の動作を説明するためのフローチャートである。
【符号の説明】
1 データ通信回線
3 電源
5 電力供給線
10 ターミナル機
11 CPU(子側異常時通信切替制御手段)
12 ROM(子側異常時通信切替制御手段)
14 通信回路
14A 無線チャンネル
14B 有線チャンネル
20 無線子局
21 CPU(子側無線通信状態検出手段)
22 ROM(子側無線通信状態検出手段)
30 上位機
40 無線親局
41 CPU(親側無線通信状態検出手段,親側異常時通信切替制御手段)
42 ROM(親側無線通信状態検出手段,親側異常時通信切替制御手段)
44 通信回路
44A 無線チャンネル
44B 有線チャンネル
[0001]
[Industrial application fields]
The present invention comprises a plurality of terminal units and a host unit, and data transmission / reception between each terminal unit and the host unit is performed by a radio slave station provided in each terminal unit and a radio master station provided on the host unit side. The present invention relates to a merchandise sales registration data processing apparatus that is configured to be executable by wireless communication via a network.
[0002]
[Prior art]
In FIG. 7, data transmission / reception between each terminal device 10 and the host device 30 is performed via a radio slave station 20 provided in each terminal device 10 and a radio master station 40 provided on the host device 30 side. A merchandise sales registration data processing apparatus configured to be executable by wireless communication is known.
[0003]
The maximum number of wireless slave stations (for example, 10A1 to 10AN) that can be wirelessly connected to one wireless master station (for example, 40A) is determined by the wireless power, processing speed, and the like of the wireless master station (40A). Therefore, wireless communication cannot be performed between another wireless master station (for example, 40B) and a wireless slave station (for example, 10A1).
[0004]
For example, when a product code is input at the terminal device 10A1, a transmission message (for example, “inquiry of product data”) is transmitted from the terminal device 10A1 to the wireless slave station 20A1 (ST70 and 71 in FIG. 9). Upon receiving this (ST60 in FIG. 8), the wireless slave station 20A1 wirelessly transmits a transmission message to the wireless master station 40A (ST61). When the wireless master station 40A receives this (received message) (ST82 in FIG. 10), it transmits the data to the host device 30 via the data communication line 1 (ST83). The host device 30 searches the master file to obtain product data, and transmits the product data to the wireless master station 40A as a transmission message.
[0005]
Then, the wireless master station 40A wirelessly transmits (ST81) the transmission message received from the host device 30 (ST80 in FIG. 10) to the wireless slave station 20A1. The wireless slave station 20A1 receives the received message (ST62 in FIG. 8) and transmits it to the terminal 10A1 (ST63). Thus, the terminal device 10A1 registers the product (received message processing) using the received message (product data) received (ST72 in FIG. 9) (ST73).
[0006]
The transmission / reception message is not limited to the product code and the product data, but includes setting data from the host device 30 to each terminal device 10, sales data collected by the host device 30 from each terminal device 10, and the like.
[0007]
[Problems to be solved by the invention]
By the way, such a wireless communication system device can wipe out the installation of the communication cable, change its route, etc. as compared with the wired communication system in which each terminal machine 10 and the host machine 30 are connected by a communication line. There is an advantage that the in-store layout accompanying the movement of the machine 10 can be easily performed. However, the wireless communication state between each wireless master station 40 and each wireless slave station 20 may become abnormal.
[0008]
When an electronic device (for example, a microwave oven, a copying machine, a portable radio device, etc.) passes in the vicinity of the terminal device 10 or is placed close to the terminal device 10, a radio interference or a failure occurs in the wireless slave station 20, This is because radio interference or failure on the wireless master station 40 side may occur. Moreover, since the radio slave stations 20A1 to 20AN that can be wirelessly connected to the radio master station (for example, 40A) are often arranged close to each other, for example, in the same sales floor, a plurality of terminal units 10 are in a radio communication state simultaneously. It tends to occur abnormally.
[0009]
Thus, conventionally, when the wireless communication state becomes abnormal, product registration or the like must be interrupted or canceled, so that the operator's business efficiency and customer service are greatly reduced. Furthermore, when a customer moves to another terminal 10, the product registration must be performed again with re-input, so that the business efficiency is further reduced and the customer's credit may be lost.
[0010]
An object of the present invention is to provide a merchandise sales registration data processing apparatus capable of continuing data transmission / reception between a terminal machine and the wireless master station by wired communication using a power supply line even when the wireless communication state becomes abnormal. There is.
[0011]
[Means for Solving the Problems]
Even in the case of a wireless communication system, the component devices are always supplied with driving power, and the component devices are often configured to have the same original power source. In addition, each component device and the main power source are connected by a wire such as a power line.
[0012]
The present invention pays attention to this point, and data transmission / reception between each terminal unit and the radio master station is possible even when an abnormality occurs in the radio communication state on either the radio slave station side or the radio master station side. Is configured to be continuously executable by a wired communication system using a common power supply line.
[0013]
In other words, the invention of claim 1 comprises a plurality of terminal units and a host unit, and is provided on the radio slave station and host unit side provided in each terminal unit for data transmission / reception between each terminal unit and the host unit. In the merchandise sales registration data processing apparatus configured to be executable by wireless communication via the wireless master station, the terminal machine and the wireless master station are formed so as to be capable of wired communication via a power supply line, Each wireless slave station is provided with a slave-side wireless communication state detection means for detecting whether or not there is an abnormality in the wireless communication state with the wireless master station, and each terminal device performs wireless communication with each wireless slave station. It is characterized in that there is provided a slave side abnormal communication switching control means for switching to enable wireless communication with the wireless master station via the power supply line when it is detected that the state is abnormal.
[0014]
The invention of claim 2 comprises a plurality of terminal units and a host unit, and data transmission / reception between each terminal unit and the host unit is provided on the radio slave station and host unit side provided in each terminal unit. In the merchandise sales registration data processing apparatus configured to be executable by wireless communication via the wireless master station, the terminal machine and the wireless master station are formed so as to be capable of wired communication via a power supply line, A parent-side wireless communication state detecting means for detecting whether the wireless master station has an abnormality in a wireless communication state with each of the wireless slave stations; and when the wireless communication state is detected to be abnormal, It is characterized in that there is provided a parent side abnormal time communication switching control means for switching to wired communication with each terminal corresponding to each wireless slave station via a power supply line.
[0015]
[Action]
In the case of the first aspect of the invention with the above configuration, when the slave side wireless communication state detecting means of a certain wireless slave station detects that the wireless communication state with the wireless master station is abnormal, it notifies the terminal device. Then, the slave side abnormal time communication switching control means of the terminal machine switches to the wireless master station via the power supply line so that wired communication is possible. Therefore, even if a wireless communication abnormality occurs, data can be directly transmitted and received between the terminal device and the wireless master station by wired communication.
[0016]
In the case of the invention of claim 2, when the master side radio communication state detecting means of a certain radio master station detects that the radio communication status with the radio slave station is abnormal, the master side abnormal time communication switching control The means is switched so as to be capable of wired communication with the terminal corresponding to the wireless slave station via the power supply line. Therefore, even if a radio communication abnormality occurs on each radio master station side, data can be directly transmitted / received between the radio master station and the terminal by wired communication.
[0017]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the product sales registration data processing apparatus has the same basic configuration (10, 20, 30, 40) as that of the conventional example (FIG. 7). 10 and the wireless master station 40 are formed so as to be capable of wired communication via the power supply line 5, and each wireless slave station 20 is provided with a slave-side wireless communication state detection means (21, 22) and each terminal device 10 has a slave side An abnormal communication switching control means (11, 12) is provided, and even when a wireless communication state abnormality occurs between the wireless slave station 20 and the wireless master station 40, the communication is switched to wired communication using the power supply line 5. Data is directly transmitted and received between the terminal device 10 and the wireless master station 40.
[0018]
Each wireless master station 20 is provided with parent wireless communication state detection means (41, 42) and parent side abnormal time communication switching control means (41, 42), and the wireless master station 40 and each wireless slave station 20 Even if a wireless communication state abnormality occurs during the period, data is directly transferred between the wireless master station 40 and each terminal 10 corresponding to each wireless slave station 20 by switching to wired communication using the power supply line 5. It is configured to be able to send and receive.
[0019]
In FIG. 1, each of the wireless master stations 40A to 40N and each of the terminal devices 10A1 to 10AN,..., 10N1 to 10NN are connected to a power source 3 by a common power supply line (for example, a light line) 5 and supplied with driving power. The The drive power of each of the wireless slave stations 20A1 to 20AN,..., 20N1 to 20NN is configured to be indirectly supplied from each of the terminal devices 10A1 to 10AN,.
[0020]
Here, as shown in FIG. 1, each terminal machine (T / M) 10 includes a CPU 11, a ROM 12, a RAM 13, a communication circuit 14, a radio interface (I / F) 15, and a power supply line interface (I / F). 16, an input / output means (a keyboard, a scanner, a display, a printer, a drawer, etc.) 17 is included, and is formed so as to be able to execute a product registration operation.
[0021]
The communication circuit 14 has a wireless channel 14A and a wired channel 14B, and both channels 14A and 14B are configured to always be activated to be capable of wireless reception and wired reception (ST20 in FIG. 5). Here, direct wired communication between the terminal 10 and the wireless master station 40 via the power supply line 5 is possible due to the relationship between the wireless channel 44A and the wired channel 44B of the wireless master station 40 side communication circuit 44 described later. It becomes.
[0022]
Each wireless slave station (ST) 20 wired to the wireless interface 15 includes a CPU 21, a ROM 22, a RAM 23, a wireless circuit 24A (antenna 25) and a wired circuit 24B, and is received from the terminal 10 connected by wire ( 4 can be transmitted wirelessly to the wireless master station 40 (ST14), and received messages received from the wireless master station 40 by wireless communication can be transmitted to the terminal 10 (ST16). Is formed.
[0023]
Each wireless master station (MT) 40 includes a CPU 41, a ROM 42, a RAM 43, a communication circuit 44, a wireless circuit 45 (antenna 45A), a power supply line interface (I / F) 46, and a wired circuit 47 as shown in FIG. The transmission message received from the host device 30 (YES in ST45 in FIG. 6) can be wirelessly transmitted to the wireless slave station 20 (ST48), and the received message received from the wireless slave station 20 (YES in ST51) The data can be transmitted to the machine 30 via the data communication line 1 (ST52).
[0024]
The communication circuit 44 has a wireless channel 44A and a wired channel 44B, and both channels 44A and 44B are always activated (ST44 in FIG. 6). This is because a transmission message can be received from the terminal device 10 via the power supply line 5 at any time.
[0025]
A transmission / reception message transmitted / received between the component devices (40, 20, 10) is composed of a “header part” and a data part shown in FIG. 3 (A1), and the header part is the same ( The content is as shown in A2).
[0026]
Here, the slave-side wireless communication state detection means provided in each wireless slave station 20 has an abnormal wireless communication state with the wireless master station 40 (including communication malfunctions / impossibility due to radio wave interference and failure of own station). ) Is formed from the ROM 22 and the CPU 21 in which the child-side wireless communication state detection control program is stored, and is executed in ST10 of FIG.
[0027]
This detection data is transmitted to the terminal 10 as a message shown in FIG. 3 (B2) (ST11). In the terminal 10 that has received data from the wireless slave station 20 (YES in ST21 in FIG. 5), the slave-side state storage control means (CPU 11, ROM 12) operates at the time of reception. That is, if it is abnormality detection data (YES in ST22), the flag F1 is set to “1” in the flag area 13F in the RAM 13 of FIG. 2 (ST23). If it is normal detection data (YES in ST24), the flag F1 is set to “0” (ST25). Of course, if it is a normal received message shown in FIG. 3 (B1), a received message process (ST26) is performed.
[0028]
Next, the slave side abnormal time communication switching control means, when the wireless slave station 20 detects that the wireless communication state is abnormal, the terminal 10 and the wireless master station 40 via the power supply line 5. 5 is formed by the ROM 12 and the CPU 11 storing the child side abnormal communication switching control program, and is executed in ST29 and ST31 of FIG.
[0029]
In the case of this embodiment, since both the wireless channel 14A and the wired channel 14B are constantly activated (ST20 in FIG. 5), the terminal device 10 can be accessed from either the wireless slave station 20 or the wireless master station 40. A received message [FIG. 3 (B1), (D)] can be received (ST21). However, when transmitting a transmission message generated in the terminal 10, it is necessary to specify which channel should be used. In other words, it is necessary to determine the transmission destination.
[0030]
Thus, in the slave side abnormal communication switching control means (11, 12), a transmission message is generated in the own device 10 (YES in ST27), and the slave side wireless communication state detection means (21, 22) detects an abnormality. In other words, in this embodiment, when F1 = 1 (YES in ST28), the channel is switched to the wired channel 14B, that is, wired communication (ST31). As a result, the transmission message [FIG. 3C] can be directly wired (ST32) to the wireless master station 40.
[0031]
When F1 = 0 is set because the abnormality has disappeared (YES in ST28), switching to normal wireless communication (wireless channel 14A) is performed again (ST29). Therefore, the transmission message is wirelessly transmitted from the wireless slave station 20 to the wireless master station 40 (ST30).
[0032]
On the other hand, the master wireless communication state detection means on the wireless master station 40 side has an abnormal wireless communication state with each of the wireless slave stations 20 (including communication malfunction / impossibility due to radio wave interference and failure of own station). A means for detecting whether or not is formed from the ROM 42 and the CPU 41 storing the parent-side wireless communication state detection control program, and is executed in ST40 of FIG.
[0033]
Then, if the parent-side state storage control means (41, 42) detects that the wireless communication state is abnormal (YES in ST41), the flag F2 is set to “1” in the flag area 43F in the RAM 43 (ST42). . In the case of normal detection (NO in ST41), “0” is set (ST43).
[0034]
Further, the parent-side abnormal communication switching control means is wired to the terminal 10 corresponding to the wireless slave station 20 via the power supply line 5 when it is detected that the wireless communication state is abnormal (YES in ST41). A means for switching so as to be communicable is formed of a ROM 42 and a CPU 41 storing a communication switching control program for a parent-side abnormality, and is executed in ST49 of FIG.
[0035]
In this switching, both channels 44A and 44B are always activated (ST44) as in the case of the terminal 10 side (ST20 in FIG. 5), so a transmission message is received from the host machine 30 (ST45). If so, the switching is made (ST49). Accordingly, the transmission message [FIG. 3D] is directly transmitted to the terminal device 10 by wired transmission via the power supply line 5 (ST50).
[0036]
When the wireless communication state is normal (YES in ST46), the wireless communication is switched to the conventional wireless communication (wireless channel 44A) (ST47), and the transmission message is wirelessly transmitted to the wireless slave station 20 (ST48).
[0037]
Note that, when receiving from either the wireless slave station 20 by wireless communication or the terminal device 10 by wired communication (YES in ST51), the wireless master station 40 sends the received message to the host device 30 via the data communication line 1. Transmit (ST52).
[0038]
Next, the operation of this embodiment will be described.
For example, when a transmission message is generated in the terminal 10A1 (YES in ST27 of FIG. 5), since F1 = 0, the wireless communication (wireless channel 14A) is switched to transmit to the wireless slave station 20A1 (YES in ST28). ST29, ST30). Then, the wireless slave station 20A1 wirelessly transmits the received transmission message (YES in ST13 in FIG. 4) to the wireless master station 40A (ST14). The wireless master station 40A that has received this via the wireless channel 44A (YES in ST51 in FIG. 6) transmits the received message as a received message to the host device 30 via the data communication line 1 (ST52).
[0039]
On the other hand, the wireless master station 40A that has received the transmission message from the host device 30 (YES in ST45) wirelessly transmits the transmission message to the wireless slave station 20A1 by wireless communication (wireless channel 44A) because F2 = 0. (YES in ST46, ST47, ST48). The wireless slave station 20A1 that has received this (YES in ST15 in FIG. 4) transmits this to the terminal 10A1 as a received message [FIG. 3 (B1)] (ST16). When the terminal 10A1 receives this via the wireless channel 14A (YES in ST21, NO in ST22, NO in ST24 in FIG. 5), it performs a received message process (ST26).
[0040]
Here, when the slave-side wireless communication state detection means (21, 22) in the wireless slave station 20A1 detects that there is an abnormality in the wireless communication state with the wireless master station 40A, the detection data is detected in the terminal 10A1. Is transmitted (ST10 and ST11 in FIG. 4). This detection data is the transmission message shown in FIG. 3 (B2), and includes communication abnormality content. In this case (YES in ST12), wireless communication is stopped.
[0041]
On the terminal 10A1 side, since the received data (YES in ST21 in FIG. 5) is wireless communication state abnormality detection data (YES in ST22), the CPU 11 sets the flag F1 to “1” in the flag area 13F (ST23). ).
[0042]
Here, the slave side abnormal time communication switching control means (11, 12) is F = 1 when the transmission message [FIG. 3 (C)] is generated (YES in ST27 in FIG. 5) (NO in ST28). ), The communication circuit 14 is switched to the wired channel 14B (ST31), and wired transmission (ST32) is performed to the wireless master station 40A1 through the power supply line 5.
[0043]
The wireless master station 40A1 that has received this (YES in ST51 in FIG. 6) transmits the data to the host device 30 via the data communication line 1 (ST52). It is handled in the same manner as when received from the wireless slave station 20A1 by wireless communication.
[0044]
In this embodiment, when the received message (FIG. 3C) is received from the terminal 10A1 by wired communication (YES in ST51), the CPU 41 sets the flag “F2” to “1”. (ST42). That is, the parent side abnormal communication switching control means (41, 42) automatically switches from the content of the received message [FIG. 3C] to the wired channel 44B as a wireless communication abnormality (NO in ST46) ( ST49).
[0045]
Thus, when the transmission message is received from the host device 30 (YES in ST45 of FIG. 6), the wireless master station 40A1 sends the transmission message [FIG. 3 (D)] to the terminal device 10A1 via the power supply line 5. Wired transmission (ST50) is performed. The terminal 10A1 processes (ST26) the data (received message) received via the wired channel 14B (YES in ST21, NO in ST22, NO in ST24).
[0046]
On the other hand, when the abnormality is detected by the parent-side wireless communication state detection means (41, 42) in the wireless master station 40A (ST40 in FIG. 6, YES in ST41), the CPU 41 sets the flag F2 to “1”. . Therefore, when the transmission message [FIG. 3D] is received from the host device 30 (YES in ST45), the parent side abnormal time communication switching control means (11, 12) switches to wired communication (wired channel 44B) (ST49). ). Then, wired transmission (ST50) is performed to the terminal 10A1 via the power supply line 5.
[0047]
The terminal 10A1 that has received this (YES in ST21 in FIG. 5) performs reception message processing (ST26). At this time, the CPU 11 determines that there is an abnormality from the content of the received message [FIG. 3D], and sets the flag F1 to “1” (ST23). That is, the slave side abnormal time communication switching control means (11, 12) switches to the wired channel 14B when transmitting the transmission message (FIG. 3C).
[0048]
If both the wireless communication state detecting means of the wireless slave station 20 and the wireless master station 40 detect that they are normal, that is, if both the flags F1 and F2 are both “0”, the wired communication is automatically changed to the original wireless communication. Can be restored. Therefore, handling is very easy.
[0049]
Thus, according to this embodiment, each terminal device 10 and the wireless master station 40 are formed so as to be capable of wired communication via the power supply line 5, and each wireless slave station 20 has a slave-side wireless communication state detection means (21 22) and each terminal 10 is provided with a slave side abnormal communication switching control means (11, 12), and even when a radio communication state abnormality occurs between the radio slave station 20 and the radio master station 40, Since it is configured to be able to directly transmit and receive data between each terminal 10 and the wireless master station 40 by switching to wired communication using the power supply line 5, even if the wireless communication state becomes abnormal, the power Data transmission / reception between the terminal machine and the wireless master station can be continued by wired communication using the supply line 5.
[0050]
Each wireless master station 20 is provided with parent wireless communication state detection means (41, 42) and parent side abnormal time communication switching control means (41, 42), and the wireless master station 40 and each wireless slave station 20 Even if an abnormal state of wireless communication occurs during this period, data can be directly transmitted / received between the wireless master station 40 and each terminal 10 corresponding to each wireless slave station 20 by wired communication using the power supply line 5. As in the above case, even if the wireless communication state becomes abnormal, switch to wired communication using the power supply line 5 and continue data transmission / reception between the terminal unit and the wireless master station. it can.
[0051]
That is, wired communication from the time point when either of the child-side wireless communication state detection means (21, 22) or the parent-side wireless communication state detection means (41, 42) detects that the wireless communication state is abnormal. Is automatically switched to That is, the loss time can be minimized.
[0052]
Further, when the child / parent side wireless communication state detecting means (21, 22, 41, 42) detects an abnormality, the flags F1 and F2 are set to “1”, respectively. When a transmission message is generated on either the 10 side or the wireless master station 40 side, the communication switching control means (11, 12, 41, 42) when the child / parent side is abnormal switches to the wired channels 14B, 44B. Good. That is, both channels 14A, 14B, 44A, and 44B are always activated in case the abnormality is detected during normal wireless communication. Therefore, it is possible to cope with any abnormal state of the wireless communication.
[0053]
In addition, when the wireless slave station 20 detects a wireless communication state abnormality, the transmission message [FIG. 3C] that is wire-transmitted from the terminal 10 to the wireless master station 40 includes a communication abnormality flag and the wireless master station 40 When a wireless communication state abnormality is detected, a transmission abnormality flag [FIG. 3 (D)] for wired transmission from the wireless master station 40 to the terminal device 10 is included, and the transmission message is Since the received radio master station 40 and the terminal device 10 are configured to automatically set the flags F2 and F1 to “1”, either of the radio slave station 20 and the radio master station 40 has a radio communication error. Even if it is detected, it is possible to cooperate and immediately switch to wired communication (transmission). Moreover, if it returns to normal, it will be automatically returned to radio | wireless communication immediately. Thus, if only one of the child-side wireless communication state detecting means (21, 22) and the parent-side wireless communication state detecting means (41, 42) is provided, the present invention can be implemented without providing the other.
[0054]
In addition, since wired communication is performed via the power supply line 5, it can be realized at low cost and has wide utility and applicability.
[0055]
【The invention's effect】
According to the first aspect of the present invention, each terminal device and the wireless master station are formed so as to be capable of wired communication via the power supply line, and each wireless slave station is provided with a slave-side wireless communication state detection means, and each terminal device is provided with Slave side abnormal communication switching control means is provided, and even if a wireless communication state abnormality occurs between the wireless slave station and the wireless master station, the terminal is connected to the wireless parent by switching to wired communication using the power supply line. Since data can be directly sent to and received from the station, even if the wireless communication status becomes abnormal, data between the terminal unit and the wireless master station by wired communication using the power supply line You can continue sending and receiving. Therefore, the business efficiency on the store side can be greatly improved and the customer satisfaction can be met.
[0056]
According to the invention of claim 2, each wireless master station is provided with a parent-side wireless communication state detecting means and a parent-side abnormal communication switching control means, and a wireless communication is performed between the wireless master station and each of the wireless slave stations. Even when a communication status error occurs, it is configured to be able to send and receive data directly between the wireless master station and each terminal corresponding to each wireless slave station by switching to wired communication using the power supply line. Similarly to the first aspect of the invention, even when the wireless communication state becomes abnormal, data transmission / reception between the terminal unit and the wireless master station can be continued by wired communication using the power supply line.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram for explaining in detail the configurations of a terminal device, a wireless slave station, and a wireless master station.
FIG. 3 is also a diagram for explaining the contents of a transmission / reception message.
FIG. 4 is a flowchart for explaining the operation on the wireless slave station side in the same manner.
FIG. 5 is a flowchart for explaining the operation on the terminal machine side in the same manner.
FIG. 6 is a flowchart for explaining the operation on the wireless master station side in the same manner.
FIG. 7 is a diagram for explaining a conventional example.
FIG. 8 is a flowchart for explaining the operation on the wireless slave station side in the same manner.
FIG. 9 is a flowchart for explaining the operation on the terminal side in the same manner.
FIG. 10 is a flowchart for explaining the operation on the wireless master station side in the same manner.
[Explanation of symbols]
1 Data communication line
3 Power supply
5 Power supply line
10 Terminal machine
11 CPU (Slave side abnormal communication switching control means)
12 ROM (Communication switching control means when child side is abnormal)
14 Communication circuit
14A wireless channel
14B Wired channel
20 wireless slave stations
21 CPU (child-side wireless communication state detection means)
22 ROM (child-side wireless communication state detection means)
30 Top machine
40 Radio master station
41 CPU (parent-side wireless communication state detection means, parent-side abnormal communication switching control means)
42 ROM (master side wireless communication state detection means, master side communication switching control means when abnormal)
44 Communication circuit
44A wireless channel
44B Wired channel

Claims (2)

複数のターミナル機と上位機とからなり、各ターミナル機と上位機との間のデータ送受信を各ターミナル機に設けられた無線子局と上位機側に設けられた無線親局とを介して無線通信により実行可能に構成された商品販売登録データ処理装置において、
前記各ターミナル機と前記無線親局とを電力供給線を介して有線通信可能に形成するとともに、前記各無線子局に前記無線親局との間の無線通信状態に異常があるか否かを検出する子側無線通信状態検出手段を設け、かつ各ターミナル機に当該各無線子局で無線通信状態が異常であると検出された場合に該電力供給線を介して前記無線親局と有線通信可能に切替える子側異常時通信切替制御手段を設けた、ことを特徴とする商品販売登録データ処理装置。
It consists of multiple terminal units and host units, and wirelessly transmits and receives data between each terminal unit and host units via radio slave stations installed in each terminal unit and radio master stations installed on the host unit side. In the product sales registration data processing device configured to be executable by communication,
Whether or not each terminal unit and the wireless master station are capable of wired communication via a power supply line, and whether or not each wireless slave station has an abnormality in a wireless communication state with the wireless master station. A slave-side wireless communication state detection means for detecting is provided, and when each wireless slave station detects that the wireless communication state is abnormal in each terminal unit, wired communication with the wireless master station via the power supply line A merchandise sales registration data processing apparatus, characterized in that a communication switching control means for a child side abnormality is provided to enable switching.
複数のターミナル機と上位機とからなり、各ターミナル機と上位機との間のデータ送受信を各ターミナル機に設けられた無線子局と上位機側に設けられた無線親局とを介して無線通信により実行可能に構成された商品販売登録データ処理装置において、
前記各ターミナル機と前記無線親局とを電力供給線を介して有線通信可能に形成するとともに、前記無線親局に前記各無線子局との間の無線通信状態に異常があるか否かを検出する親側無線通信状態検出手段と,無線通信状態が異常であると検出された場合に該電力供給線を介して当該各無線子局に対応する各ターミナル機と有線通信可能に切替える親側異常時通信切替制御手段とを設けた、ことを特徴とする商品販売登録データ処理装置。
It consists of multiple terminal units and host units, and wirelessly transmits and receives data between each terminal unit and host units via radio slave stations installed in each terminal unit and radio master stations installed on the host unit side. In the product sales registration data processing apparatus configured to be executable by communication,
Whether each of the terminal units and the wireless master station can be wired via a power supply line, and whether the wireless master station has an abnormality in a wireless communication state with each of the wireless slave stations. Master side wireless communication state detection means to detect, and parent side that switches to wire communication with each terminal corresponding to each wireless slave station via the power supply line when it is detected that the wireless communication state is abnormal A merchandise sales registration data processing device, characterized in that an abnormality communication switching control means is provided.
JP13005595A 1995-05-29 1995-05-29 Product sales registration data processing device Expired - Fee Related JP3607360B2 (en)

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Application Number Priority Date Filing Date Title
JP13005595A JP3607360B2 (en) 1995-05-29 1995-05-29 Product sales registration data processing device

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JP3607360B2 true JP3607360B2 (en) 2005-01-05

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Publication number Priority date Publication date Assignee Title
JP2001160108A (en) 1999-12-03 2001-06-12 Nec Corp System and method for electronic settlement, settling terminal, paying terminal and settlement center

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