JP2004287713A - Security system and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security system easy to mount and capable of preventing the leaving of a commodity by surely announcing the presence of the commodity left behind to a user, and its program. <P>SOLUTION: This security system comprises a cellular phone 10, a reader/writer 11 loaded in the cellular phone 10, and an IC tag 21 stuck to or installed in a portable commodity 20. The reader/writer 11 communicates with the IC tag 21 every predetermined time. When the communication is impossible, a first alarm is announced by use of the cellular phone 10, and when both become communicable again, a second alarm is announced. Accordingly, not only the security system can be easily constructed, but also the presence of the commodity left behind can be surely reported to the user. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【００３３】
なお、これらのデータが書き込まれるＥＥＰＲＯＭ２１４は、電気的に書き換え可能な記録媒体であるため、一度初期設定処理により設定したデータでも、携帯電話機１０を介して所定の消去処理を行った後、再度新しい携帯品の関連付けデータを設定することも可能である。
【００３４】
図３は、本発明の第１の実施形態であるセキュリティーシステムの動作例を示すシーケンスチャートである。まず、リーダ／ライタ１１が装着された携帯電話機１０は、当該リーダ／ライタ１１を介して携帯品２０に貼り付けられたＩＣタグ２１に対して確認信号を送信する（ステップＳ１１）。携帯電話機１０は、リーダ／ライタ１１を介してＩＣタグ２１への確認信号を送信後、タイマ機能によりＩＣタグ２１からの応答信号を受信するまでの間隔をカウントする。
【００３５】
ＩＣタグ２１は、リーダ／ライタ１１を介して送信された確認信号を受信すると、応答信号を送信する（ステップＳ１２）。携帯電話機１０は、ＩＣタグ２１からの応答信号を受信すると、タイマ機能によるカウントを停止し、次にＩＣタグ２１に対して確認信号を送信するまでの所定時間をタイマ機能によりカウントする。
【００３６】
携帯電話機１０は、ＩＣタグ２１からの応答信号が返信される間、すなわち、ＩＣタグ２１と通信可能状態の場合には、ステップＳ１１の処理を繰り返し行う。ＩＣタグ２１は、リーダ／ライタ１１を介して送信される確認信号を受信する毎に、応答信号の送信を行う（ステップＳ１２）。
【００３７】
携帯電話機１０は、リーダ／ライタ１１を介してＩＣタグ２１に対して確認信号を送信後、タイマ機能により応答信号を受信するまでの間隔が所定値を超過した場合（通信不可能状態）、ＩＣタグ２１からの応答信号が無いと判断し（ステップＳ１３）、ユーザに第１警報（携帯品２０を忘れている旨）を報知する（ステップＳ１４）。
【００３８】
ユーザは、携帯電話機１０を介して第１警報が報知されると、リーダ／ライタ１１を装着した状態の携帯電話機１０を所持したまま、携帯品２０を置き忘れたと思われる場所へ出向いて当該携帯品２０を探す。なお、ユーザは、必ずしも第１警報が報知された直後に携帯品２０を探す必要はない。
【００３９】
携帯電話機１０は、ユーザに第１警報を報知した後、再度、リーダ／ライタ１１を介してＩＣタグ２１へ定時間毎に確認信号を送信し（ステップＳ１５）、ＩＣタグ２１からの応答信号の有無を確認する（ステップＳ１６）。ステップＳ１６において、ＩＣタグ２１からの応答信号がない場合には（応答なし）、再度、第１警報を報知する（ステップＳ１４）。
【００４０】
ユーザは、リーダ／ライタ１１が装着された携帯電話機１０を所持した状態で置き忘れた携帯品２０の近隣（通信可能状態）へ移動すると、
ＩＣタグ２１は、リーダ／ライタ１１を介して送信された確認信号に対する応答信号を送信する（ステップＳ１７）。
【００４１】
携帯電話機１０は、ステップＳ１６において、ＩＣタグ２１からの応答信号を受信すると（応答あり）、ユーザに第１警報とは異なる第２警報（忘れ物＜携帯品２０＞が近隣に存在する旨）を報知する（ステップＳ１８）。
【００４２】
ここでの警報とは、着信音（着信メロディー）／着信発光／着信振動（バイブレーション機能）の何れか、又は、これらの組み合わせである。例えば、警報として着信音を設定する場合には、ユーザ所望の音種を選択設定することが可能である。また、第１警報と第２警報とは、それぞれ異なるものであればよく、何れも着信音を設定した場合には、異なる音種であればよい。さらに、第１警報を着信音、第２警報を着信発光あるいは着信振動といった設定も任意であり、これらの設定は携帯情報端末から変更可能である。
【００４３】
上述したように、リーダ／ライタ１１とＩＣタグ２１との通信可能距離は、略５ｍ程度である。したがって、ユーザは、置き忘れた携帯品２０が現在位置から略５ｍ程度の距離（半径略５ｍ以内）に存在することを認識できる。
【００４４】
本発明の第１の実施形態によれば、非接触方式のＩＣタグを携帯品に貼り付け又は装着し、リーダ／ライタを携帯電話機に装着することで簡単にセキュリティーシステムを構築することができる。
【００４５】
また、ＩＣタグは、携帯電話機に装着されたリーダ／ライタ１１から送信された確認信号を受信し、当該受信した確認信号（無線電波）を電力に変換してＩＣチップを駆動することにより、応答信号を送信することができるので、電源を搭載する必要がない。したがって、従来のように電池切れによりシステムを利用できないといった不具合が生じることがない。
【００４６】
さらに、本発明の第１の実施形態において、携帯電話機１０にＩＣタグ２１から返信される信号（応答信号）の強度を測定する機能を設け、置き忘れた携帯品２０の捜索時に応答信号の受信強度に基づいて、着信音量や発光パターン、振動パターンなどを自動的に変更するように制御してもよい。この制御モードは、第２警報を報知した後、ユーザ自らが携帯電話機の操作部からモード切替設定を行っても、携帯電話機１０のアプリケーションプログラムとして、第２警報を報知後、自動的にモード切替を行うようにしてもよい。また、リーダ／ライタ１１とＩＣタグ２１との通信可能距離を、例えば、略５ｍモードと略１０ｃｍモードの２つのモードに切り替え可能な構成にし、略５ｍモードで携帯品２０の概略の捜索範囲を認知し、略１０ｃｍモードに切り替えて携帯品２０の位置を特定させるようにしてもよい。
【００４７】
＜第２の実施形態＞
図４は、本発明の第２の実施形態であるセキュリティーシステムの概略構成を示す図である。図４において、本発明の第２の実施形態であるセキュリティーシステムは、上述した本発明の第１の実施形態の構成に加え、携帯電話機１０にＧＰＳ機能を搭載し、さらに、基地局３０と、該基地局３０と通信するＧＰＳ衛星４０と、を有して構成される。
【００４８】
携帯電話機１０は、第１の実施形態と同様に、通常の通信機能を備え、操作部、表示部を具備するものであるが、新たにＧＰＳ機能を搭載している。
【００４９】
このＧＰＳ機能とは、携帯電話機１０の自己位置情報を検出する機能である。通常、携帯電話機１０の自己位置情報を検出する場合、所定の操作により携帯電話機１０からＧＰＳ信号を送信し、当該携帯電話機１０から基地局３０に無線通信回線網を介してアクセス後、自己位置の検出要求を送信する。ＧＰＳ衛星４０は、携帯電話機１０から送信されたＧＰＳ信号をキャッチすると、基地局３０に対して携帯電話機１０の位置情報（緯度、経度、高度）を送信する。基地局３０は、ＧＰＳ衛星４０から送信された位置情報を、例えば、住所情報あるいは地図情報として携帯電話機１０へ送信する。以上により、携帯電話機１０の自己位置情報を取得することができる。
【００５０】
本発明の第２の実施形態は、リーダ／ライタ１１とＩＣタグ２１とが通信可能状態における携帯電話機１０（リーダ／ライタ１１が装着されている）の自己位置情報をＧＰＳ機能により取得しておき、通信不可能状態となった場合に、携帯電話機１０を介してこの自己位置情報をユーザに通知するものである。
【００５１】
図５は、本発明の第２の実施形態であるセキュリティーシステムの動作例を示すシーケンスチャートである。まず、リーダ／ライタ１１が装着された携帯電話機１０は、上述した第１の実施形態と同様に、ＩＣタグ２１に対して確認信号を送信する（ステップＳ２１）。
【００５２】
ＩＣタグ２１は、リーダ／ライタ１１を介して送信された確認信号を受信すると、応答信号を送信する（ステップＳ２２）。
【００５３】
携帯電話機１０は、リーダ／ライタ１１を介してＩＣタグ２１からの応答信号を受信すると、ＧＰＳ機能によりＧＰＳ信号を送信し（ステップＳ２３）、自己位置情報の取得要求を基地局３０に対して送信する（ステップＳ２４）。
【００５４】
基地局３０は、ＧＰＳ衛星４０との通信により、携帯電話機１０の位置情報（緯度、経度、高度）を取得し（ステップＳ２５）、この取得した位置情報を携帯電話機１０へ送信する（ステップＳ２６）。
【００５５】
携帯電話機１０は、基地局３０から送信された位置情報を取得すると、取得した位置情報及び当該位置情報の取得要求を送信した時刻情報を記憶する（ステップＳ２７）。
【００５６】
なお、リーダ／ライタ１１を介して送信される確認信号に対してＩＣタグ２１から応答信号が返信され、当該応答信号をリーダ／ライタ１１で受信可能な状況下、つまり、通信可能状態の場合には、以上のステップＳ２１〜Ｓ２７までの一連の処理が繰り返し行われる。
【００５７】
また、携帯電話機１０の位置情報取得処理に関しては、ユーザが特別な処理を行う必要はなく、予めモード設定等を行っておくことにより自動的に取得処理を行う。
【００５８】
ここで、リーダ／ライタ１１とＩＣタグ２１とが通信不可能状態となった場合を説明する。携帯電話機１０は、ステップＳ２７において、位置情報と時刻情報とを一時記憶すると、再び、ＩＣタグ２１に対して確認信号を送信する（ステップＳ２８）。
【００５９】
しかしながら、ＩＣタグ２１が貼り付けられた又は装着された携帯品２０が置き忘れられ、通信不可能状態にある場合には、当該ＩＣタグ２１は、リーダ／ライタ１１を介して送信される確認信号を受信することができないので、応答信号を送信することができない。
【００６０】
そこで、携帯電話機１０は、リーダ／ライタ１１を介して確認信号を送信後、タイマ機能によりＩＣタグ２１からの応答信号を受信するまでの間隔が所定値を超過すると、応答信号が無いと判断し（ステップＳ２９）、上記一時記憶した位置情報並びに時刻情報を表示部に表示する（ステップＳ３０）。
【００６１】
図６は、携帯電話機の表示部に表示される位置情報及び時刻情報の表示画面例を示す図である。
図６（ａ）の場合、「忘れ物情報」として、何を忘れているか（カバン）、何処に忘れているか（住所表示）、何時ごろ忘れたものか（時刻表示）、が表示されている。この場合、全て文字情報として表示される。
また、図６（ｂ）の場合、何処に忘れているか（地図表示）、何を忘れているか（財布）、何時ごろ忘れているか（時刻表示）が表示されている。この場合、地図情報はグラフィックで表示され、それ以外の情報は文字情報として表示される。
【００６２】
本発明の第２の実施形態によれば、リーダ／ライタ１１とＩＣタグ２１とが通信可能状態である時の携帯電話機１０の位置情報を取得しておき、通信不可能状態となった際に当該取得した位置情報を携帯電話機１０に表示させることにより、ユーザは、忘れ物の存在する位置情報を容易に把握することができる。
【００６３】
また、本発明の第２の実施形態においては、位置情報の取得にＧＰＳ機能を用いる方法を示したが、これに限定されるものではない。
【００６４】
例えば、図７に示すように、携帯電話機１０から一定時間毎に電波を送信し、当該電波をキャッチした複数の基地局３１〜３３の間でその受信強度から携帯電話機１０の大まかな位置情報を検出するといった方法も可能である。この場合、複数の基地局間（３１〜３３）における電波の信強度に基づく位置情報の算出処理は、当該携帯電話機１０とインターネット接続されるサーバ５０で行うようにするとよい。携帯電話機１０は、自己位置情報を検出する際には、このサーバ５０にアクセスして位置情報を取得する。
【００６５】
なお、上述した実施形態は本発明に好適な実施形態であり、本発明の主旨を逸脱しない範囲内において種々変形して実施することが可能である。
【００６６】
例えば、本発明の第１の実施形態と第２の実施形態とを組み合わせた構成とすることも可能である。この場合、忘れ物が存在する時点（リーダ／ライタ１１とＩＣタグ２１との通信が不可能）で第１警報を報知する。次に、ＧＰＳ機能により携帯電話機１０の位置情報を表示部に表示し、この位置情報に基づいてユーザが忘れ物を探しに行き、リーダ／ライタ１１とＩＣタグ２１との通信が可能となった時点で第２警報を報知するようにすることも可能である。
【００６７】
また、初期設定時にＩＣタグ２１に書き込んだ情報（ユーザ情報、携帯品の関連付けデータなど）を、通信回線網を介して接続される第３者機関のサーバなどに登録しておき、例えば、駅や警察などの公的機関における遺失物の引渡し時の認証情報として利用することも可能である。
【００６８】
なお、上述した実施形態は、携帯品の忘れ物という前提において説明したものであるが、特に財布などの場合には盗難にあうといった可能性があるため、ＩＣタグを財布に貼り付け又は装着しておくことで、盗難にあった場合でも、本システムを用いて財布を捜索することが可能である。
【００６９】
また、子供が携帯する物品（例えば、名札、靴、洋服など）にＩＣタグを貼り付けておくことで、迷子になってしまう状況を未然に防いだり、仮に迷子になってしまった場合でも、本システムを用いて容易に捜索を行うことが可能である。
【００７０】
また、添乗員が同行するツアー旅行の場合には、旅行客のツアーバッジ等にＩＣタグを貼り付けておくことで、添乗員による人数確認やはぐれた人の捜索等に用いることも可能である。
【００７１】
また、本システムによれば、携帯電話機を置き忘れた場合でも、ＩＣタグを貼り付けた物品を携帯していれば、当該携帯電話機（リーダ／ライタ）とＩＣタグとの通信が不可能な状態（一定距離離れる）になると、携帯電話機が着信音を鳴動、発光あるいは振動するので、即座に携帯電話機を置き忘れたことを認識することが可能である。
【００７２】
さらに、店舗内に陳列される商品に予めＩＣタグを貼り付け、店員が携帯電話機を所有するようにしておき、あるいは、その携帯電話機を出入口に置いておき、開店前に商品に貼り付けられたＩＣタグとの関連付け処理を行っておくことによる万引き防止システムとしての適用も可能である。
【００７３】
【発明の効果】
以上の説明から明らかなように、本発明によれば、非接触方式のＩＣタグを携帯品に貼り付け又は装着し、当該ＩＣタグと通信するリーダ／ライタをユーザが所有する携帯電話機に装着するだけで、簡単にセキュリティーシステムを構築することができる。
【００７４】
また、本発明によれば、ＩＣタグがリーダ／ライタからの送信された無線電波を電力に変換して応答信号を送信するため電源を搭載する必要がないので、従来のように電池切れによりシステムを利用できないといった不具合を十分に解消することができる。
【００７５】
また、本発明によれば、忘れ物が存在することを報知する警報、忘れ物が近くに存在することを示す警報、を音、発光、振動、などにより利用者に報知するので、忘れ物の存在を確実に報知することができる。
【００７６】
さらに、本発明によれば、リーダ／ライタとＩＣタグとが通信可能状態である時の携帯電話機の位置情報を取得しておき、通信不可能状態となった際に当該取得した位置情報を携帯電話機に表示させるので、ユーザは、忘れ物の存在する位置情報を容易に把握することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施形態であるセキュリティーシステムの概略構成を示す図である。
【図２】本発明の第１の実施形態におけるＩＣタグの初期設定時の動作例を示すフローチャートである。
【図３】本発明の第１の実施形態による動作例を示すシーケンスチャートである。
【図４】本発明の第２の実施形態であるセキュリティーシステムの概略構成を示す図である。
【図５】本発明の第２の実施形態による動作例を示すシーケンスチャートである。
【図６】本発明の第２の実施形態における携帯電話機の表示画面例を示す平面図である。
【図７】複数の基地局による携帯電話機の位置情報検出を示すシステム構成図である。
【符号の説明】
１０ 携帯電話機
１１ リーダ／ライタ
２０ 携帯品
２１ ＩＣタグ（ＩＣシール）
３０ 基地局
４０ ＧＰＳ衛星
５０ サーバ
２１１ ＣＰＵ
２１２ ＲＯＭ
２１３ ＲＡＭ
２１４ ＥＥＰＲＯＭ
２１５ コプロ
２１６ Ｉ／Ｆ（インタフェース）
２１７ アンテナ（ループアンテナ）[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a security system and a program thereof, and more particularly to a security system using an IC tag and a program thereof.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a security system including a small transmitter and a small receiver has been known as a security system for preventing a lost item or a deposit. In this system, for example, a transmitter is attached to a bag or the like, and a receiver is carried. A radio signal in a frequency band that can be received by the receiver is transmitted from the transmitter at regular intervals, and an alarm sound is issued when the radio signal cannot be received on the receiver side.
[0003]
With the spread of mobile phones in recent years, it has been realized that such a function as a transmitter is mounted on a mobile phone.
[0004]
As the above-described technology, the following technology is generally known as a published patent publication.
[0005]
[Patent Document 1]
JP-A-11-346389
[Patent Document 2]
JP 2000-287265 A
[Patent Document 3]
JP 2001-283351 A
[0006]
The invention of Patent Literature 1 is such that a mobile phone is used as a base unit, and a device that is engaged with belongings is set as a sub unit, and the base unit issues an alarm when communication between the base unit and the sub unit becomes impossible. By doing so, a mobile phone with a lost item prevention function of preventing a lost item is disclosed.
[0007]
The invention of Patent Literature 2 includes a slave unit and a mobile phone as a master unit. When the slave unit is separated from the mobile phone by a predetermined distance or more, radio waves do not reach the mobile phone and the mobile phone emits sound, so that lost or lost objects are lost. A device for preventing lost and lost objects and a portable terminal device for preventing a lost item are disclosed.
[0008]
The invention of Patent Document 3 comprises a master unit and a slave unit, and the master unit transmits radio waves to the slave unit intermittently for a certain period of time, and transmits a radio wave to the master unit as soon as the slave unit receives this radio wave. The parent device repeats a cycle of checking radio waves from the child device, and when the cycle goes wrong, the parent device responds and notifies the user with a buzzer or the like, thereby preventing a lost item from being left behind.
[0009]
[Problems to be solved by the invention]
However, each of the inventions of Patent Documents 1 to 3 described above has a disadvantage that both the power supplies must be held in order to realize communication between the master unit and the slave unit.
[0010]
For example, when the power of the slave unit is turned off, it is not possible to reply to the confirmation signal from the master unit even though it has not actually been forgotten, and always keeps informing that there is something left behind. There is a problem that occurs.
[0011]
Recently, attention has been paid to RFID (Radio Frequency Identification) technology. The RFID is a solid-state recognition technology for recognizing a data carrier by a non-contact method using radio waves. According to this technique, updating and adding information is simpler than in the related art, and a plurality of individuals can be recognized collectively. The data carrier itself does not need a power supply, and operates by a power supply of a reader / writer that reads / writes from / to the data carrier.
[0012]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the use of a non-contact type IC tag which does not require a power supply makes it easy to attach and ensures that there is a left / forget. It is an object of the present invention to provide a security system and a program for notifying a user of the security system.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, a security system according to the present invention includes at least two transceivers, and one of the transceivers is attached to one of the transceivers. The wireless communication device operates by radio waves transmitted at predetermined time intervals from the other transceiver, and the other transceiver notifies an alarm when transmission and reception with the one transceiver become impossible.
[0014]
The security system of the present invention includes: an IC tag attached to a target; a reader / writer having a function of communicating with the IC tag at predetermined time intervals; and a portable information terminal equipped with the reader / writer. The portable information terminal issues an alarm when communication between the reader / writer and the IC tag becomes impossible.
[0015]
In the present invention, the IC tag is provided with a unique identification number in advance, and the data associated with the target can be arbitrarily set and changed from the portable information terminal to the IC tag via the reader / writer. It is characterized by the following.
[0016]
Further, the portable information terminal of the present invention issues a first alarm when communication between the reader / writer and the IC tag becomes impossible, and the reader / writer and the IC tag again A second alarm is issued when communication becomes possible.
[0017]
Further, the first alarm and the second alarm in the present invention are any of different ringtones / light emission / incoming vibration or a combination thereof, and can be arbitrarily set and changed from the portable information terminal. It is characterized by being.
[0018]
Further, the portable information terminal according to the present invention detects and temporarily stores position information of the portable information terminal at a time when the reader / writer and the IC tag can communicate with each other. When the communication becomes impossible, the temporarily stored position information is displayed.
[0019]
Further, the portable information terminal according to the present invention temporarily stores the position information of the portable information terminal at the time when the reader / writer and the IC tag can communicate with each other using a plurality of base stations, When the communication between the reader / writer and the IC tag becomes impossible, the temporarily stored position information is displayed.
[0020]
Further, the portable information terminal according to the present invention is equipped with a GPS function, and the position of the portable information terminal at the time when the reader / writer and the IC tag can communicate with each other through communication with a GPS satellite via a base station. After the information is obtained, the information is temporarily stored, and when the communication between the reader / writer and the IC tag becomes impossible, the temporarily stored position information is displayed.
[0021]
Further, the portable information terminal according to the present invention, by means of communication with the GPS satellite via the base station every time communication between the reader / writer and the IC tag is performed, updates the position information of the portable information terminal. The acquired position information is overwritten and updated with the temporarily stored position information.
[0022]
Further, a program for a security system according to the present invention is a security system program comprising: an IC tag attached to an object; a reader / writer communicating with the IC tag; and a portable information terminal equipped with the reader / writer. A communication control process for controlling communication between the reader / writer and the IC tag, and alerting the portable information terminal when a signal transmitted from the IC tag cannot be received within a predetermined time. And performing an alarm notification process.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a security system and a program thereof according to the present invention will be described in detail with reference to the accompanying drawings. 1 to 6 show an embodiment of a security system and a program thereof according to the present invention.
[0024]
<First embodiment>
FIG. 1 is a diagram showing a schematic configuration of a security system according to a first embodiment of the present invention. As shown in FIG. 1, a security system according to a first embodiment of the present invention includes a mobile phone 10, a reader / writer 11 mounted on the mobile phone 10, and mobile items (bags, notebooks, key holders, wallets, and the like). Etc.) 20 and an IC tag (IC seal) 21 attached or attached to the IC tag 20.
[0025]
The mobile phone 10 is a mobile phone (including a PHS machine) equipped with a normal transmission / reception function, and includes a display unit and an operation unit. The mobile phone 10 downloads an application program for using the system from a Web site connected via an Internet network and performs various operation controls. Of course, this application program may be incorporated in the mobile phone 10 before shipment of the mobile phone 10 from the factory. In any case, various operation controls are performed using the application program.
[0026]
The reader / writer 11 is externally attached to the mobile phone 10 and operates by power supplied from the mobile phone, and has a function of communicating with the IC tag 21 wirelessly at predetermined time intervals. In addition, the reader / writer 11 is not limited to an external device, and may be configured to be built in the mobile phone 10 in advance. The communicable distance between the reader / writer 11 and the IC tag 21 is about 5 m.
[0027]
The IC tag (IC seal) 21 is used by being attached to the portable item 20, and operates by receiving a radio wave of a specific frequency band. In the IC tag 21, a CPU 211, a ROM 212, a RAM 213, an EEPROM 214, a coprocessor (coprocessor) 215, and an I / F (interface) 216 are formed as an IC chip, and an antenna ( A loop antenna 217 is provided.
[0028]
The IC tag 21 is provided with a unique tamper-proof identification number in advance at the manufacturing stage, and the portable data of the portable item is transmitted by the user from the operation unit of the mobile phone 10 via the reader / writer 11. Has been written. The data written here is not limited to the above, and user information such as a user's address, name, and contact information can also be written.
[0029]
The number of IC tags 21 is not limited to one, and a plurality of IC tags may be provided. Also, the shape of the IC tag 21 has been described as having a card shape, but the IC tag 21 can be used as appropriate, such as a label type, a coin type, a stick type, and the like, and is not particularly limited.
[0030]
FIG. 2 is a flowchart showing an initial setting operation when using the security system according to the first embodiment of the present invention. First, a user (hereinafter, referred to as a user) of the present system attaches or attaches an IC tag 21 to a portable item (for example, a bag or the like) 20 and attaches the reader / writer 11 to the user's own mobile phone 10. (Step S1).
[0031]
Next, the user starts an IC tag initial setting screen from the operation menu of the mobile phone 10 (step S2). After registering the user information (name, address, contact information, etc.) using the operation unit (step S3), the user stores the association data of the portable device 20 (for example, data indicating that the portable device is a bag). After registration (step S4), the initial setting process ends. The initially set data is written to the EEPROM 214 of the IC tag 21 by wireless communication via the reader / writer 11. At this time, if there are IC tags that are not to be written, these are set outside the radio wave range of the write radio wave.
[0032]
For example, when an IC tag is attached to each of “bag”, “wallet”, and “periodical”, the association data written to the IC tags 21a to 21c is as follows. In addition, <No. −−−−−−−−−−−−−> is an identification number unique to each IC tag that cannot be falsified.

[0033]
The EEPROM 214 in which these data are written is an electrically rewritable recording medium. Therefore, even if the data once set by the initial setting process is subjected to a predetermined erasing process via the mobile phone 10, the data is renewed again. It is also possible to set association data of portable goods.
[0034]
FIG. 3 is a sequence chart showing an operation example of the security system according to the first embodiment of the present invention. First, the mobile phone 10 to which the reader / writer 11 is attached transmits a confirmation signal to the IC tag 21 attached to the portable item 20 via the reader / writer 11 (step S11). After transmitting the confirmation signal to the IC tag 21 via the reader / writer 11, the mobile phone 10 counts an interval until a response signal from the IC tag 21 is received by the timer function.
[0035]
Upon receiving the confirmation signal transmitted via the reader / writer 11, the IC tag 21 transmits a response signal (step S12). Upon receiving the response signal from the IC tag 21, the mobile phone 10 stops counting by the timer function, and counts a predetermined time until the next confirmation signal is transmitted to the IC tag 21 by the timer function.
[0036]
The mobile phone 10 repeats the process of step S11 while the response signal from the IC tag 21 is being returned, that is, when the mobile phone 10 is in a communicable state with the IC tag 21. Each time the IC tag 21 receives the confirmation signal transmitted via the reader / writer 11, it transmits a response signal (step S12).
[0037]
When the interval from the transmission of the confirmation signal to the IC tag 21 via the reader / writer 11 to the reception of the response signal by the timer function exceeds a predetermined value (communication disabled state), the mobile phone 10 It is determined that there is no response signal from the tag 21 (step S13), and the user is notified of the first warning (forgetting the portable device 20) (step S14).
[0038]
When the user is notified of the first alarm via the mobile phone 10, the user goes to a place where the user may have left the mobile device 20 while holding the mobile phone 10 with the reader / writer 11 attached, and goes to the place where the user has left the mobile device 20. Look for 20. Note that the user does not necessarily need to search for the portable device 20 immediately after the first alarm is notified.
[0039]
After notifying the user of the first alarm, the mobile phone 10 again transmits a confirmation signal to the IC tag 21 via the reader / writer 11 at regular intervals (step S15), and outputs a response signal from the IC tag 21. The presence or absence is confirmed (step S16). In step S16, if there is no response signal from the IC tag 21 (no response), the first alarm is notified again (step S14).
[0040]
When the user moves to the vicinity (communicable state) of the misplaced portable device 20 while carrying the mobile phone 10 to which the reader / writer 11 is attached,
The IC tag 21 transmits a response signal to the confirmation signal transmitted via the reader / writer 11 (step S17).
[0041]
Upon receiving the response signal from the IC tag 21 in step S16 (response is received), the mobile phone 10 gives the user a second alarm different from the first alarm (to the effect that a lost item <portable item 20> exists nearby). A notification is issued (step S18).
[0042]
The alarm here is any one of a ringtone (ringtone melody), ringtone emission, ringtone vibration (vibration function), or a combination thereof. For example, when setting a ringtone as an alarm, it is possible to select and set a sound type desired by the user. Further, the first alarm and the second alarm may be different from each other, and may be different from each other if a ringtone is set. Furthermore, settings such as a ringtone for the first alarm and ringing or vibration for the second alarm can be arbitrarily set, and these settings can be changed from the portable information terminal.
[0043]
As described above, the communicable distance between the reader / writer 11 and the IC tag 21 is approximately 5 m. Therefore, the user can recognize that the misplaced portable article 20 exists at a distance of about 5 m from the current position (within a radius of about 5 m).
[0044]
According to the first embodiment of the present invention, a security system can be easily constructed by attaching or attaching a non-contact type IC tag to a portable product and attaching a reader / writer to a mobile phone.
[0045]
Further, the IC tag receives a confirmation signal transmitted from the reader / writer 11 attached to the mobile phone, converts the received confirmation signal (wireless radio wave) into electric power, and drives the IC chip to provide a response. Since signals can be transmitted, there is no need to mount a power supply. Therefore, unlike the related art, there is no problem that the system cannot be used due to battery exhaustion.
[0046]
Furthermore, in the first embodiment of the present invention, a function for measuring the strength of a signal (response signal) returned from the IC tag 21 is provided in the mobile phone 10, and the reception strength of the response signal when searching for the misplaced portable article 20 is provided. May be controlled so as to automatically change the ring volume, the light emission pattern, the vibration pattern, and the like. In this control mode, after the second alarm is notified, even if the user himself sets the mode switching from the operation unit of the mobile phone, the mode is automatically switched after the second alarm is notified as the application program of the mobile phone 10. May be performed. The communicable distance between the reader / writer 11 and the IC tag 21 can be switched between two modes, for example, a mode of about 5 m and a mode of about 10 cm. The recognition may be performed, and the mode may be switched to the approximately 10 cm mode to specify the position of the portable item 20.
[0047]
<Second embodiment>
FIG. 4 is a diagram illustrating a schematic configuration of a security system according to a second embodiment of the present invention. In FIG. 4, a security system according to a second embodiment of the present invention includes a GPS function in the mobile phone 10 in addition to the configuration of the above-described first embodiment of the present invention. And a GPS satellite 40 that communicates with the base station 30.
[0048]
The mobile phone 10 has a normal communication function and an operation unit and a display unit as in the first embodiment, but has a new GPS function.
[0049]
The GPS function is a function for detecting self-position information of the mobile phone 10. Normally, when detecting the self-location information of the mobile phone 10, a GPS signal is transmitted from the mobile phone 10 by a predetermined operation, and the mobile phone 10 accesses the base station 30 via the wireless communication network, and then detects the self-location information. Send a discovery request. When catching the GPS signal transmitted from the mobile phone 10, the GPS satellite 40 transmits the position information (latitude, longitude, altitude) of the mobile phone 10 to the base station 30. The base station 30 transmits the position information transmitted from the GPS satellite 40 to the mobile phone 10 as, for example, address information or map information. As described above, the self-position information of the mobile phone 10 can be obtained.
[0050]
In the second embodiment of the present invention, the self-position information of the mobile phone 10 (where the reader / writer 11 is mounted) in a state where the reader / writer 11 and the IC tag 21 can communicate with each other is acquired by the GPS function. When the communication is disabled, the user is notified of the self-position information via the mobile phone 10.
[0051]
FIG. 5 is a sequence chart showing an operation example of the security system according to the second embodiment of the present invention. First, the mobile phone 10 to which the reader / writer 11 is attached transmits a confirmation signal to the IC tag 21 as in the first embodiment (step S21).
[0052]
Upon receiving the confirmation signal transmitted via the reader / writer 11, the IC tag 21 transmits a response signal (step S22).
[0053]
Upon receiving the response signal from the IC tag 21 via the reader / writer 11, the mobile phone 10 transmits a GPS signal by the GPS function (step S23), and transmits a request for acquiring its own position information to the base station 30. (Step S24).
[0054]
The base station 30 acquires position information (latitude, longitude, altitude) of the mobile phone 10 through communication with the GPS satellite 40 (step S25), and transmits the obtained position information to the mobile phone 10 (step S26). .
[0055]
Upon acquiring the location information transmitted from the base station 30, the mobile phone 10 stores the acquired location information and the time information at which the acquisition request for the location information was transmitted (step S27).
[0056]
Note that a response signal is returned from the IC tag 21 in response to the confirmation signal transmitted via the reader / writer 11, and the response signal can be received by the reader / writer 11, that is, when communication is possible. , A series of processes in steps S21 to S27 described above is repeatedly performed.
[0057]
Further, regarding the position information acquisition processing of the mobile phone 10, the user does not need to perform any special processing, and the acquisition processing is automatically performed by performing mode setting or the like in advance.
[0058]
Here, a case where the reader / writer 11 and the IC tag 21 are in a communication disabled state will be described. After temporarily storing the position information and the time information in step S27, the mobile phone 10 transmits a confirmation signal to the IC tag 21 again (step S28).
[0059]
However, when the portable device 20 to which the IC tag 21 is attached or attached is left behind and is in a communication disabled state, the IC tag 21 transmits a confirmation signal transmitted via the reader / writer 11. Since it cannot be received, a response signal cannot be transmitted.
[0060]
Therefore, if the interval between the transmission of the confirmation signal via the reader / writer 11 and the reception of the response signal from the IC tag 21 by the timer function exceeds a predetermined value, the mobile phone 10 determines that there is no response signal. (Step S29), the temporarily stored position information and time information are displayed on the display unit (Step S30).
[0061]
FIG. 6 is a diagram illustrating an example of a display screen of position information and time information displayed on the display unit of the mobile phone.
In the case of FIG. 6A, what has been forgotten (bag), where it has been forgotten (address display), and when it was forgotten (time display) are displayed as "forgotten item information". In this case, all are displayed as character information.
In the case of FIG. 6B, where the user has forgotten (map display), what he / she has forgotten (wallet), and when he / she forgot (time display) are displayed. In this case, the map information is displayed as a graphic, and the other information is displayed as character information.
[0062]
According to the second embodiment of the present invention, the position information of the mobile phone 10 when the reader / writer 11 and the IC tag 21 are in the communicable state is acquired, and when the communication becomes impossible, By displaying the acquired position information on the mobile phone 10, the user can easily grasp the position information where the forgotten object is present.
[0063]
Further, in the second embodiment of the present invention, the method of using the GPS function to acquire the position information has been described, but the present invention is not limited to this.
[0064]
For example, as shown in FIG. 7, a radio wave is transmitted from the mobile phone 10 at regular intervals, and rough position information of the mobile phone 10 is obtained from a plurality of base stations 31 to 33 that have caught the radio wave based on the reception intensity. A method such as detection is also possible. In this case, the process of calculating the position information based on the signal strength of the radio wave between the plurality of base stations (31 to 33) may be performed by the server 50 connected to the mobile phone 10 and the Internet. When detecting the self-location information, the mobile phone 10 accesses the server 50 to acquire the location information.
[0065]
The above-described embodiment is a preferred embodiment of the present invention, and can be variously modified and implemented without departing from the gist of the present invention.
[0066]
For example, a configuration in which the first embodiment and the second embodiment of the present invention are combined is also possible. In this case, the first alarm is notified at the time when the left thing is present (communication between the reader / writer 11 and the IC tag 21 is not possible). Next, the position information of the mobile phone 10 is displayed on the display unit by the GPS function, and based on the position information, the user goes to search for a lost item, and the communication between the reader / writer 11 and the IC tag 21 becomes possible. It is also possible to notify the second alarm by using.
[0067]
In addition, information (user information, portable data association data, and the like) written to the IC tag 21 at the time of the initial setting is registered in a server of a third party institution connected via a communication network, for example, and the It can also be used as authentication information at the time of delivery of lost items in public institutions such as police and police.
[0068]
The above-described embodiment has been described on the premise that a portable item is forgotten. However, in the case of a wallet or the like, there is a possibility of theft, so the IC tag is attached to or attached to the wallet. By doing so, even if the system is stolen, it is possible to search the wallet using the present system.
[0069]
In addition, by attaching an IC tag to an article carried by a child (for example, a name tag, shoes, clothes, etc.), a situation in which the child is lost can be prevented beforehand, and even if the child is lost, It is possible to easily search using this system.
[0070]
Also, in the case of a tour trip accompanied by a tour conductor, by attaching an IC tag to a tour badge or the like of a tourist, it is also possible to use the tour tag to confirm the number of people or search for a lost person. .
[0071]
Further, according to the present system, even if the mobile phone is misplaced, communication between the mobile phone (reader / writer) and the IC tag is impossible if the article carrying the IC tag is carried (see FIG. 1). At a certain distance, the mobile phone rings, emits light or vibrates, so that it is possible to immediately recognize that the mobile phone has been left behind.
[0072]
Further, an IC tag is pasted on a product displayed in the store in advance, so that a clerk owns a mobile phone, or the mobile phone is placed at an entrance, and the product is pasted on the product before opening. It is also possible to apply as an anti-shoplifting system by performing a process of associating with an IC tag.
[0073]
【The invention's effect】
As is apparent from the above description, according to the present invention, a non-contact type IC tag is attached to or attached to a portable device, and a reader / writer that communicates with the IC tag is attached to a mobile phone owned by the user. A security system can be easily constructed.
[0074]
Further, according to the present invention, since the IC tag converts a radio wave transmitted from the reader / writer into electric power and transmits a response signal, there is no need to mount a power supply, so that the system does not need to be equipped with a battery as in the related art. It is possible to sufficiently solve the problem that the user cannot use.
[0075]
Further, according to the present invention, an alarm for notifying that a forgotten object is present or an alarm for indicating that a forgotten object is present is notified to a user by sound, light emission, vibration, or the like. Can be notified.
[0076]
Further, according to the present invention, the position information of the mobile phone when the reader / writer and the IC tag are in a communicable state is acquired, and when the communication is not possible, the acquired position information is transferred to the mobile phone. Since the information is displayed on the telephone, the user can easily grasp the position information where the lost item is present.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a schematic configuration of a security system according to a first embodiment of the present invention.
FIG. 2 is a flowchart illustrating an operation example at the time of initial setting of an IC tag according to the first embodiment of the present invention.
FIG. 3 is a sequence chart showing an operation example according to the first embodiment of the present invention.
FIG. 4 is a diagram illustrating a schematic configuration of a security system according to a second embodiment of the present invention.
FIG. 5 is a sequence chart showing an operation example according to the second embodiment of the present invention.
FIG. 6 is a plan view illustrating a display screen example of a mobile phone according to a second embodiment of the present invention.
FIG. 7 is a system configuration diagram showing detection of position information of a mobile phone by a plurality of base stations.
[Explanation of symbols]
10 Mobile phone
11 Reader / Writer
20 Mobile goods
21 IC tag (IC seal)
30 base stations
40 GPS satellites
50 servers
211 CPU
212 ROM
213 RAM
214 EEPROM
215 Copro
216 I / F (interface)
217 Antenna (loop antenna)

Claims (10)

In a security system comprising at least two transceivers, one of which is attached to a target,
The one transceiver operates by radio waves transmitted from the other transceiver every predetermined time,
The security system, wherein the other transceiver notifies an alarm when transmission and reception with the one transceiver become impossible. An IC tag attached to the object,
A reader / writer having a function of communicating with the IC tag at predetermined time intervals;
A portable information terminal equipped with the reader / writer,
A security system, wherein the portable information terminal issues an alarm when communication between the reader / writer and the IC tag becomes impossible. The IC tag,
3. A unique identification number is given in advance, and data associated with the object can be arbitrarily set and changed from the portable information terminal to the IC tag via the reader / writer. Security system. The portable information terminal,
A first alarm is issued when communication between the reader / writer and the IC tag becomes impossible,
When the reader / writer and the IC tag become communicable again, issue a second alarm.
The security system according to claim 2 or 3, wherein: The first alarm and the second alarm are:
5. The security system according to claim 4, wherein the portable information terminal is any one of ringtones / light emission / incoming vibrations different from each other or a combination thereof, and can be arbitrarily changed from the portable information terminal. The portable information terminal,
Detecting and temporarily storing the position information of the portable information terminal at the time when the reader / writer and the IC tag can communicate;
The security system according to any one of claims 2 to 5, wherein the temporarily stored position information is displayed when communication between the reader / writer and the IC tag becomes impossible. The portable information terminal,
Temporarily detecting, using a plurality of base stations, position information of the portable information terminal at a time when the reader / writer and the IC tag can communicate,
The security system according to any one of claims 2 to 5, wherein the temporarily stored position information is displayed when communication between the reader / writer and the IC tag becomes impossible. The portable information terminal,
A GPS function is mounted, and the portable information terminal at the time when the reader / writer and the IC tag can communicate with each other through communication with a GPS satellite via a base station is acquired and temporarily stored.
The security system according to any one of claims 2 to 5, wherein the temporarily stored position information is displayed when communication between the reader / writer and the IC tag becomes impossible. The portable information terminal,
Each time communication is performed between the reader / writer and the IC tag, position information of the portable information terminal is acquired by communication with the GPS satellite via the base station, and the acquired position information is temporarily stored. 9. The security system according to claim 8, wherein the stored position information is overwritten and updated. An IC tag attached to the object,
A reader / writer for communicating with the IC tag;
And a portable information terminal equipped with the reader / writer.
In the portable information terminal,
A communication control process for controlling communication between the reader / writer and the IC tag;
An alarm notification process of notifying an alarm when a signal transmitted from the IC tag cannot be received within a predetermined time;
A program characterized by executing

Images