JP4635731B2 - Security system - Google Patents

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JP4635731B2
JP4635731B2 JP2005178467A JP2005178467A JP4635731B2 JP 4635731 B2 JP4635731 B2 JP 4635731B2 JP 2005178467 A JP2005178467 A JP 2005178467A JP 2005178467 A JP2005178467 A JP 2005178467A JP 4635731 B2 JP4635731 B2 JP 4635731B2
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wireless
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identification information
responder
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JP2006350861A (en
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秀樹 武長
秀生 鍋嶋
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パナソニック電工株式会社
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Description

本発明は、セキュリティシステムに関するものである。   The present invention relates to a security system.
この種のセキュリティシステムとしては、一般住宅などにおいて玄関扉に設けた電気錠の解錠又は施錠を制御する電気錠システムが従来より提供されている(例えば特許文献1参照)。この電気錠システムは、個別の識別情報が設定され、外部から無線信号で送信された質問信号を受信すると、自己の識別情報を含む応答信号を無線信号で返送する第1の無線通信部、第1の無線通信部の通信を制御する通信制御部、及び内部回路に電源を供給する電池を具備した応答器と、扉の近傍に設置され、外部に無線信号で質問信号を送信するとともに応答器から返送された応答信号を受信する第2の無線通信部を具備した質問器と、質問器の受信した応答信号に含まれる識別情報が予め登録された識別情報に一致すると、扉に設けた電気錠の施錠又は解錠を行う電気錠制御装置とで構成されている。   As this type of security system, an electric lock system that controls unlocking or locking of an electric lock provided on a front door in a general house or the like has been conventionally provided (see, for example, Patent Document 1). In this electric lock system, when individual identification information is set and an interrogation signal transmitted from the outside is received as a radio signal, a first radio communication unit that returns a response signal including its own identification information as a radio signal, A communication control unit that controls communication of the wireless communication unit 1 and a responder that includes a battery that supplies power to the internal circuit; and a responder that is installed in the vicinity of the door and transmits an interrogation signal as a radio signal to the outside. When the identification information included in the response signal received by the interrogator matches the identification information registered in advance, the interrogator having the second wireless communication unit that receives the response signal returned from An electric lock control device that locks or unlocks the lock.
この電気錠システムでは、外出していた家人が応答器を持って玄関扉に近付き、質問器の通信エリア内に入ると、質問器から送信された質問信号の受信をトリガとして、応答器から自己の識別情報を含む応答信号が返信され、この応答信号を質問器が受信する。電気錠制御装置では、質問器の受信した識別情報と、予め登録されている識別情報とを照合し、質問器の受信した識別情報が登録されている識別情報に一致すれば、電気錠を解錠状態にした後、施錠するので、家人が鍵を取り出して解錠操作を行わなくても、電気錠が解錠されている間に宅内に入ることができるようになっている。
特開平11−161747号公報
In this electric lock system, when a housekeeper who has gone out approaches the entrance door with a responder and enters the communication area of the interrogator, the response from the responder is triggered by the reception of the interrogator signal transmitted from the interrogator. A response signal including the identification information is returned, and the interrogator receives the response signal. In the electric lock control device, the identification information received by the interrogator is compared with the identification information registered in advance, and if the identification information received by the interrogator matches the registered identification information, the electric lock is unlocked. Since it is locked after being locked, the housekeeper can enter the house while the electric lock is unlocked without taking out the key and performing the unlocking operation.
Japanese Patent Laid-Open No. 11-161747
上述した電気錠システムでは、応答器を持った家人が質問器の通信エリア内に入ると、質問器が家人の持つ応答器との間で無線通信を行うことによってこの応答器から識別情報を取得し、取得した識別情報が予め登録されている識別情報に一致すれば、電気錠を解錠するようになっているが、通信エリアを通る家人が帰宅しようとしているのか、それとも外出しようとしているのかを判別できないため、家人の移動方向に応じて電気錠の施錠又は解錠を切り替えることができず、これから外出しようとする家人が質問器の通信エリア内を通ったために、電気錠が解錠されてしまう可能性もあった。   In the electric lock system described above, when a householder with a transponder enters the communication area of the interrogator, the interrogator obtains identification information from the transponder by performing wireless communication with the transponder possessed by the householder. And if the acquired identification information matches the identification information registered in advance, the electric lock is unlocked, but is the housekeeper who is going through the communication area going home or going out? Therefore, it is impossible to switch between locking and unlocking the electric lock according to the direction of movement of the householder, and the electrician is unlocked because the householder who wants to go out passes through the communication area of the interrogator. There was also a possibility of end.
本発明は上記問題点に鑑みて為されたものであり、その目的とするところは、応答器を持った家人の移動方向を判別し、移動方向に応じた制御を行うことが可能なセキュリティシステムを提供することにある。   The present invention has been made in view of the above-described problems, and the object of the present invention is to determine a moving direction of a householder having a responder and to perform control according to the moving direction. Is to provide.
上記目的を達成するために、請求項1の発明は、個別の識別情報が設定され、外部から無線信号で送信された質問信号を受信すると、自己の識別情報を含む応答信号を無線信号で返送する無線通信部、無線通信部の通信を制御する通信制御部、及び内部回路に電源を供給する電池を具備した応答器と、扉の外側にある通路の進行方向に沿って互いに離して配置され、それぞれ外部に無線信号で質問信号を送信する複数の無線送信部、及び応答器から返送された応答信号を受信する無線受信部を具備した質問器と、質問器の受信した応答信号に含まれる識別情報が予め登録された識別情報に一致すると、受信した応答信号に応じた処理を行うセキュリティ機器とを備え、複数の無線送信部には個別のID番号が割り当てられ、各々の無線送信部は自己のID番号を含む質問信号を無線信号により送信し、応答器の通信制御部は、無線通信部が所定時間内に互いにID番号が異なる質問信号を少なくとも2つ受信した場合のみ、所定時間内に受信した全てのID番号およびID番号の受信順序を示す情報を自己の識別情報とともに無線通信部から送信させ、セキュリティ機器は、質問器の受信した応答信号に含まれる識別情報が予め登録された識別情報に一致すると、前記応答信号に含まれるID番号の受信順序を示す情報に基づいて応答器の移動方向を判定し、当該移動方向に基づいて、扉に設けた電気錠の施錠又は解錠、或いは、室内の監視モードを警戒設定又は警戒解除に切り替えるモード切替の内少なくとも何れか一つを前記処理として行うことを特徴とする。 In order to achieve the above object, according to the first aspect of the present invention, when individual identification information is set and a query signal transmitted from the outside as a radio signal is received, a response signal including its own identification information is returned as a radio signal. A wireless communication unit, a communication control unit for controlling communication of the wireless communication unit, and a transponder having a battery for supplying power to the internal circuit, and are arranged away from each other along the advancing direction of the passage outside the door Included in the interrogator provided with a plurality of radio transmitters each transmitting an interrogation signal as a radio signal to the outside, and a radio receiver unit receiving a response signal returned from the responder, and the response signal received by the interrogator When the identification information matches the pre-registered identification information, and a security device that performs processing according to the received response signal, the plurality of radio transmitter is assigned a separate ID number, each of the wireless transmission unit The interrogation signal including the own ID number transmitted by wireless signals, the communication control unit of the transponder only when the wireless communication unit that receives at least two interrogation signals which ID number is different from each other within a predetermined time, within a predetermined time All the ID numbers received and information indicating the reception order of ID numbers are transmitted from the wireless communication unit together with their own identification information, and the security device has previously registered the identification information included in the response signal received by the interrogator If it matches the identification information, the moving direction of the responder is determined based on the information indicating the reception order of the ID numbers included in the response signal, and the locking or unlocking of the electric lock provided on the door is determined based on the moving direction. Alternatively, at least one of mode switching for switching the indoor monitoring mode to warning setting or warning cancellation is performed as the processing .
この発明によれば、応答器の通信制御部では、所定時間内に互いにID番号の異なる質問信号を複数受信した場合は、自己の識別情報とともに、所定時間内に受信した全てのID番号およびID番号の受信順序を示す情報を無線通信部から送信させているので、無線送信部に割り当てたID番号の受信順序から応答器を持った人物の移動方向を判断することができ、セキュリティ機器が移動方向に応じた制御を行うことができる。しかも、応答器の通信制御部では、所定時間内に互いにID番号の異なる質問信号を複数受信していなければ、無線通信部から応答信号を無線信号で送信させないので、応答器からの無線信号の送信回数を減らすことができる。   According to the present invention, when a plurality of interrogation signals having different ID numbers are received within a predetermined time, the communication control unit of the responder, together with its own identification information, all ID numbers and IDs received within the predetermined time. Since the information indicating the reception order of the numbers is transmitted from the wireless communication unit, the moving direction of the person having the responder can be determined from the reception order of the ID numbers assigned to the wireless transmission unit, and the security device moves. Control according to the direction can be performed. Moreover, if the communication control unit of the responder does not receive a plurality of response signals having different ID numbers within a predetermined time period, the response signal is not transmitted as a wireless signal from the wireless communication unit. The number of transmissions can be reduced.
請求項2の発明は、応答器の通信制御部は、無線通信部が予め登録されているID番号であって、互いにID番号が異なる質問信号を所定時間内に少なくとも2つ受信した場合のみ、前記所定時間内に受信した全てのID番号およびID番号の受信順序を示す情報を自己の識別情報とともに無線通信部から送信させることを特徴とする。   In the invention of claim 2, the communication control unit of the responder is an ID number registered in advance in the wireless communication unit, and only when at least two question signals having different ID numbers are received within a predetermined time, All the ID numbers received within the predetermined time and information indicating the reception order of the ID numbers are transmitted from the wireless communication unit together with its own identification information.
この発明によれば、応答器の通信制御部では、所定時間内に互いにID番号の異なる質問信号を複数受信したとしても、受信したID番号が予め登録されたID番号でなければ、無線通信部から応答信号を無線信号で送信させないので、対応する質問器以外の質問器から送信された質問信号に応答して応答信号を送信するのを防止できる。   According to this invention, even if the communication control unit of the responder receives a plurality of question signals having different ID numbers within a predetermined time, if the received ID number is not a pre-registered ID number, the wireless communication unit Since the response signal is not transmitted as a wireless signal, it is possible to prevent a response signal from being transmitted in response to an interrogator transmitted from an interrogator other than the corresponding interrogator.
請求項3の発明は、請求項1又は2の発明において、各々の無線送信部が互いに送波期間をずらして無線信号を送信することを特徴とする。   According to a third aspect of the present invention, in the first or second aspect of the present invention, each of the wireless transmission units transmits a wireless signal with a transmission period shifted from each other.
この発明によれば、各無線送信部が互いに送波期間をずらして無線信号を送信しているので、複数の無線送信部の通信エリアが部分的に重なっていたとしても、複数の無線送信部から送信される無線信号の干渉を回避できる。   According to the present invention, since the wireless transmission units transmit the wireless signals with the transmission periods shifted from each other, even if the communication areas of the multiple wireless transmission units partially overlap, the multiple wireless transmission units Interference of radio signals transmitted from can be avoided.
請求項1の発明によれば、応答器の通信制御部では、所定時間内に互いにID番号の異なる質問信号を複数受信した場合は、自己の識別情報とともに、所定時間内に受信した全てのID番号およびID番号の受信順序を示す情報を無線通信部から送信させているので、無線送信部に割り当てたID番号の受信順序から応答器を持った人物の移動方向を判断することができ、セキュリティ機器が移動方向に応じた制御を行えるという効果がある。しかも、応答器の通信制御部では、所定時間内に互いにID番号の異なる質問信号を複数受信していなければ、無線通信部から応答信号を無線信号で送信させないので、応答器からの無線信号の送信回数を減らすことができ、したがって電力消費を低減して、電池寿命を延ばすことができるという効果がある。   According to the invention of claim 1, when the communication control unit of the responder receives a plurality of question signals having different ID numbers within a predetermined time, all IDs received within the predetermined time together with its own identification information Since the wireless communication unit transmits information indicating the number and the reception order of the ID numbers, the moving direction of the person having the responder can be determined from the reception order of the ID numbers assigned to the wireless transmission unit. There is an effect that the device can perform control according to the moving direction. Moreover, if the communication control unit of the responder does not receive a plurality of response signals having different ID numbers within a predetermined time period, the response signal is not transmitted as a wireless signal from the wireless communication unit. There is an effect that the number of transmissions can be reduced, thus reducing the power consumption and extending the battery life.
請求項2の発明によれば、応答器の通信制御部では、所定時間内に互いにID番号の異なる質問信号を複数受信したとしても、受信したID番号が予め登録されたID番号でなければ、無線通信部から応答信号を無線信号で送信させないので、対応する質問器以外の質問器から送信された質問信号に応答して応答信号を送信するのを防止できる。   According to the invention of claim 2, even if the communication control unit of the responder receives a plurality of question signals having different ID numbers within a predetermined time, the received ID number is not a pre-registered ID number, Since the response signal is not transmitted as a wireless signal from the wireless communication unit, it is possible to prevent the response signal from being transmitted in response to the inquiry signal transmitted from an interrogator other than the corresponding interrogator.
請求項3の発明によれば、各無線送信部が互いに送波期間をずらして無線信号を送信しているので、複数の無線送信部の通信エリアが部分的に重なっていたとしても、複数の無線送信部から送信される無線信号の干渉を回避できるという効果がある。   According to the invention of claim 3, since each wireless transmission unit transmits a wireless signal with a transmission period shifted from each other, even if communication areas of a plurality of wireless transmission units partially overlap, There is an effect that interference of radio signals transmitted from the radio transmission unit can be avoided.
以下に本発明の実施の形態を図面に基づいて説明する。図1及び図2は本実施形態のセキュリティシステムのブロック図であり、本システムは、応答器TGと、質問器RWと、受信装置Uと、電気錠制御装置LTUとを主要な構成として備える。   Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are block diagrams of the security system of the present embodiment, and this system includes a responder TG, an interrogator RW, a receiving device U, and an electric lock control device LTU as main components.
応答器TG(無線タグ)は、送信信号を変調して放射電磁波でアンテナ1aから送波するRF送信部1と、ループアンテナ2aを備え誘電電磁波を受波して復調するLF受信部2と、RF送信部1およびLF受信部2における信号の変復調に際して信号に暗号化処理または暗号解除処理を施す暗号処理部3と、携行者が送信操作を行うための操作スイッチ(以下操作SWという)4と、上記各部1〜4の制御を行う制御部5と、内部回路に電源を供給する電池6とを備えている。なお応答器TGには個別の識別情報が予め設定されており、図示しないメモリに保存されている。ここにRF送信部1とLF受信部2とで無線通信部が構成され、通信制御部たる制御部5が無線通信部の通信を制御し、質問器RWとの間で無線通信を行うことによって、自己の識別情報を含む応答信号を無線信号で送信するようになっている。   A responder TG (wireless tag) includes an RF transmitter 1 that modulates a transmission signal and transmits the electromagnetic wave from the antenna 1a using a radiated electromagnetic wave, an LF receiver 2 that includes a loop antenna 2a and receives and demodulates a dielectric electromagnetic wave, An encryption processing unit 3 that performs encryption processing or decryption processing on a signal when the signal is modulated and demodulated in the RF transmission unit 1 and the LF reception unit 2, and an operation switch (hereinafter referred to as an operation SW) 4 for a carrier to perform a transmission operation; The control unit 5 that controls the units 1 to 4 and the battery 6 that supplies power to the internal circuit are provided. Individual identification information is preset in the responder TG and stored in a memory (not shown). Here, the RF transmission unit 1 and the LF reception unit 2 constitute a wireless communication unit, and the control unit 5 serving as a communication control unit controls the communication of the wireless communication unit and performs wireless communication with the interrogator RW. A response signal including its own identification information is transmitted as a radio signal.
質問器RW(無線タグ用リーダ装置)は、図3に示すように戸建住宅や集合住宅の各住戸において玄関扉Dの近傍に設置されて、応答器TGへ質問信号を送信するものであり、RF送信部1からの放射電磁波をアンテナ7aで受波して復調するRF受信部7(無線受信部)と、送信信号を誘導電磁波に変調してループアンテナ9a,9bからそれぞれ送波する複数台(本実施形態では2台)のLF送信部8a,8b(無線送信部)と、RF受信部7ならびにLF送信部8a,8bにおける信号の変復調に際して信号に暗号化処理または暗号解除処理を施す暗号処理部10と、稼動状態を表示する表示部11と、所定の異常状態を鳴動音で報知するブザー12と、受信装置Uを通信可能に接続する外部インターフェース(以下、外部I/Fという)13と、全体の制御を行う制御部14とを備える。なお質問器RWのRF受信部7と応答器TGのRF送信部1との間では例えば特定小電力通信のような通信方式により無線通信が行われている。   As shown in FIG. 3, the interrogator RW (wireless tag reader device) is installed in the vicinity of the entrance door D in each dwelling unit of a detached house or an apartment house, and transmits a question signal to the responder TG. An RF receiver 7 (wireless receiver) that receives and demodulates the electromagnetic wave radiated from the RF transmitter 1 by the antenna 7a, and a plurality of signals that are respectively transmitted from the loop antennas 9a and 9b by modulating the transmission signal into an induced electromagnetic wave. The signal is subjected to encryption processing or descrambling processing at the time of modulation / demodulation of signals in the LF transmitters 8a and 8b (wireless transmitters) of the base (two in this embodiment), the RF receiver 7 and the LF transmitters 8a and 8b. The encryption processing unit 10, the display unit 11 for displaying the operating state, the buzzer 12 for notifying a predetermined abnormal state with a ringing sound, and an external interface (hereinafter referred to as an external I / F) for connecting the receiving device U to be communicable. ) Includes a 13, and a control unit 14 for controlling the entire. Note that wireless communication is performed between the RF reception unit 7 of the interrogator RW and the RF transmission unit 1 of the responder TG by a communication method such as specific low power communication.
ここに、2台のLF送信部8a,8bには個別のID番号(Tx_LF1,Tx_LF2)が割り当てられ、ID番号を含む質問信号(送信信号)を無線信号で送信するものであり、玄関扉Dの外側にある通路Wの進行方向に沿って互いの通信エリアA1,A2が重ならないようにそれぞれ配置されている。図3の例ではLF送信部8aの通信エリアA1がLF送信部8bの通信エリアA2に比べて玄関扉Dに近い側に設定されている。通信エリアA1,A2の設定はLF送信部8a,8bの送信出力を制御することによっても可能であるが、LF送信部8a,8bの備えるループアンテナ9a,9bの向きが互いに離れるように調整すれば、通信エリアA1,A2が互いに重ならないよう調整することは比較的容易である。而してループアンテナ9a,9bの向きを調整することによって、通信エリアA1,A2が互いに重ならないように設定すれば、複数のLF送信部8a,8bを同一の筐体に組み込むことが可能なので、質問器RWの台数を1台にすることが可能である。尚、本実施形態では説明を簡単にするため無線送信部たるLF送信部8a,8bを2台備えている場合について説明を行うが、無線送信部の台数を2台に限定する趣旨のものではなく、使用用途や使用環境に合わせて台数を決めれば良い。   Here, individual ID numbers (Tx_LF1, Tx_LF2) are assigned to the two LF transmitters 8a and 8b, and a question signal (transmission signal) including the ID number is transmitted as a radio signal. The communication areas A1 and A2 are arranged so as not to overlap each other along the traveling direction of the passage W located outside the road. In the example of FIG. 3, the communication area A1 of the LF transmitter 8a is set closer to the entrance door D than the communication area A2 of the LF transmitter 8b. Although the communication areas A1 and A2 can be set by controlling the transmission output of the LF transmitters 8a and 8b, the loop antennas 9a and 9b provided in the LF transmitters 8a and 8b are adjusted so that the directions are separated from each other. For example, it is relatively easy to adjust so that the communication areas A1 and A2 do not overlap each other. Thus, by adjusting the direction of the loop antennas 9a and 9b so that the communication areas A1 and A2 do not overlap each other, a plurality of LF transmitters 8a and 8b can be incorporated in the same housing. The number of interrogators RW can be reduced to one. In this embodiment, the case where two LF transmitters 8a and 8b, which are wireless transmitters, are described for the sake of simplicity, but the number of wireless transmitters is limited to two. There is no need to decide the number of units according to the intended use and usage environment.
受信装置Uは、質問器RWの外部I/F12に通信可能に接続される質問器インターフェース(以下、質問器I/Fという)15と、稼動状態を表示する表示部16と、所定の異常状態を警報音により報知する警報音発生部17と、操作者が所望の操作を行うための操作部18と、窓や扉などの開閉状態、窓硝子の破壊、或いは室内への侵入を検知する防犯センサSa、或いは、火災警報器やガス漏れ警報器などの防災センサSbから無線信号で送信された報知信号をアンテナ19aを介して受信する受信部19と、電気錠制御装置LTUを通信可能に接続するための電気錠インターフェース(以下、電気錠I/Fという)20と、全体の制御を行うとともに、質問器I/F15と外部I/F12との間の有線通信について秘匿性を有するように信号に暗号化処理または暗号解除処理を施す制御部21とを備える。   The receiving device U includes an interrogator interface (hereinafter referred to as an interrogator I / F) 15 that is communicably connected to the external I / F 12 of the interrogator RW, a display unit 16 that displays an operating state, and a predetermined abnormal state. Alarm sound generating unit 17 for notifying by alarm sound, operation unit 18 for an operator to perform a desired operation, crime prevention for detecting opening / closing states of windows and doors, destruction of window glass, or intrusion into a room The receiving part 19 which receives the notification signal transmitted by radio signal from the disaster prevention sensor Sb such as the sensor Sa or the fire alarm or the gas leak alarm via the antenna 19a and the electric lock control device LTU are communicably connected. The electric lock interface (hereinafter referred to as an electric lock I / F) 20 and the entire control are performed, and the wired communication between the interrogator I / F 15 and the external I / F 12 is concealed. And a control unit 21 for performing an encryption process or decryption process to the signal.
電気錠制御装置LTUは、受信装置Uの電気錠I/F20に通信可能に接続される外部インターフェース(以下、外部I/Fという)22と、玄関扉Dに設けた電気錠LKの施錠又は解錠を行う電気錠駆動部23と、玄関扉Dの開閉を検知する開閉検知部24と、他の外部機器を接続するための拡張用インターフェース(拡張用I/F)25と、全体の制御を行う制御部26とを備える。   The electric lock control device LTU locks or unlocks an external interface (hereinafter referred to as an external I / F) 22 that is communicably connected to the electric lock I / F 20 of the receiving device U and an electric lock LK provided on the entrance door D. An electric lock drive unit 23 for locking, an opening / closing detection unit 24 for detecting opening / closing of the entrance door D, an expansion interface (expansion I / F) 25 for connecting other external devices, and overall control. And a control unit 26 to perform.
ここで、受信装置Uでは、質問器RWからの質問信号に対して応答器TGから返送されてきた応答信号に含まれる識別情報が、制御部21の内部メモリ(図示せず)に予め登録された識別情報と一致していれば、電気錠制御装置LTUを制御して電気錠LKの解錠又は施錠を行わせるとともに、室内の警戒監視を行う警戒設定状態又は警戒解除状態に監視モードを切り替える。ここで監視モードが警戒設定状態に切り換えられている場合、受信装置Uの制御部21は、受信部19が防犯センサSa又は防災センサSbから送信された報知信号を受信すると、表示部16に異常発生を表示させるとともに、警報音発生部17により警報音を鳴動させて、異常の発生を宅内の家人に報知する。一方、監視モードが警戒解除状態に切り換えられている場合は、防災センサSbからの報知信号を受信した場合を除き、防犯センサSaからの報知信号を受信部19が受信しても、制御部21では表示部16や警報音発生部17による報知動作を行わせないようになっている。ここに、受信装置Uと電気錠制御装置LTUとでセキュリティ機器が構成される。   Here, in the receiving device U, the identification information included in the response signal returned from the responder TG in response to the interrogation signal from the interrogator RW is registered in advance in an internal memory (not shown) of the control unit 21. If it matches the identification information, the electric lock control device LTU is controlled to unlock or lock the electric lock LK, and the monitoring mode is switched to a warning setting state or a warning release state for performing indoor warning monitoring. . Here, when the monitoring mode is switched to the alert setting state, the control unit 21 of the receiving device U causes an abnormality in the display unit 16 when the receiving unit 19 receives the notification signal transmitted from the security sensor Sa or the disaster prevention sensor Sb. The occurrence is displayed, and the alarm sound is generated by the alarm sound generation unit 17 to notify the householder in the house of the occurrence of the abnormality. On the other hand, when the monitoring mode is switched to the warning release state, the control unit 21 does not receive the notification signal from the security sensor Sa except when the notification signal from the disaster prevention sensor Sb is received. Then, the notification operation by the display unit 16 and the alarm sound generation unit 17 is not performed. Here, a security device is constituted by the receiving device U and the electric lock control device LTU.
次に、図3に示すように応答器TGを持った人物Mが宅内に入るために玄関扉Dに向かって通路Wを移動している場合のセキュリティシステムの動作を図4および図5のフローチャートに基づいて説明を行う。なお図4のフローチャートでは設備側である質問器RW、受信装置U、電気錠制御装置LTUの動作を説明し、図5のフローチャートでは応答器TGの動作を説明してある。   Next, as shown in FIG. 3, the operation of the security system when the person M having the responder TG moves through the passage W toward the entrance door D to enter the house is a flowchart of FIGS. An explanation will be given based on In the flowchart of FIG. 4, the operations of the interrogator RW, the receiving device U, and the electric lock control device LTU on the equipment side are described, and in the flowchart of FIG. 5, the operation of the responder TG is described.
質問器RWは、電源が投入されて稼動状態になると、応答器TGからの応答信号の返送を待ち受ける待ち受け状態となる。この待ち受け状態では、質問器RWの制御部14が、LF送信部8a,8bから自己のID番号を含む質問信号を定期的に受信エリアA1,A2に送信し、RF受信部7が応答器TGからの応答を待機する(ステップS1)。   When the power is turned on and the interrogator RW enters an operating state, the interrogator RW enters a standby state where it waits for a response signal from the responder TG to be returned. In this standby state, the controller 14 of the interrogator RW periodically transmits an interrogation signal including its own ID number from the LF transmitters 8a and 8b to the reception areas A1 and A2, and the RF receiver 7 receives the responder TG. Waits for a response from (step S1).
待機状態において質問器RWの受信部19が応答器TGからの返信信号を受信すると(ステップS2)、質問器RWの制御部14は、返信信号に含まれる応答器TGの識別情報および受信したLF送信部8a,8bのID情報を外部I/F13から受信装置Uに転送し(ステップS3)、受信装置Uの制御部21が、質問器RWの取得した識別情報と予め登録されている識別情報とを照合して、ID認証を行う(ステップS4)。ここで、応答器TGでは、受信したLF送信部8a,8bのID情報を送信する際に、ID情報を受信した順番に送信している。   When the receiving unit 19 of the interrogator RW receives the reply signal from the responder TG in the standby state (step S2), the control unit 14 of the interrogator RW includes the identification information of the responder TG included in the reply signal and the received LF. The ID information of the transmission units 8a and 8b is transferred from the external I / F 13 to the reception device U (step S3), and the control unit 21 of the reception device U acquires the identification information acquired by the interrogator RW and the identification information registered in advance. And ID authentication is performed (step S4). Here, when transmitting the received ID information of the LF transmitters 8a and 8b, the responder TG transmits the ID information in the order of reception.
ID認証の結果、応答器TGの識別情報が予め登録されている識別情報と一致していれば(すなわち、この応答器TGを持つ人物Mが管理対象者であれば)、受信装置Uの制御部21は、識別情報とともに送信されてきたLF送信部8a,8bのID情報の受信順序を判断し(ステップS5)、LF送信部8aのID情報Tx_LF1の後にLF送信部8bのID情報Tx_LF2が送信されていれば、応答器TGを持つ人物Mが通信エリアA2から通信エリアA1に移動したと判断する。つまり受信装置Uの制御部21では、応答器TGを持つ人物Mが玄関扉Dに近付く向きに進行していると判断でき、この応答器TGを持つ人物Mが玄関扉Dを通って入室するのを許可すべく、監視モードをそれまでの警戒設定状態から警戒解除状態に切り替えるとともに(ステップS6)、電気錠I/F20から電気錠制御装置LTUに開信号を送出する(ステップS7)。この時、電気錠制御装置LTUでは制御部26が、外部I/F22を介して入力された開信号に応じて、電気錠駆動部23により電気錠LKを解錠させる(ステップS8)。その後、制御部26は、開閉検知部24の検知結果をもとに、玄関扉Dが一旦開けられた後再び閉められたか否かを判断し(ステップS9)、玄関扉Dが再度閉められると、電気錠駆動部23により電気錠LKを施錠するとともに、外部I/F22より受信装置Uへ待機信号を送信し、この待機信号が受信装置Uを介して質問器RWにも転送され、質問器RWおよび受信装置Uが待機状態に戻る(ステップS1)。一方、ステップS9において電気錠LKを解錠してから所定時間が経過しても、開閉検知部24により玄関扉Dの閉状態を検知できなかった場合、制御部26では玄関扉Dが開状態のままになっていると判断して、外部I/F22から受信装置Uへ報知信号を送信し、受信装置Uにより警報音発生部17から警報音を出力させたり、表示部16に異常発生を表示させるなどして、玄関扉Dが開状態のままになっていることを知らしめる。   If the identification information of the responder TG matches the pre-registered identification information as a result of the ID authentication (that is, if the person M having the responder TG is a management target person), the control of the receiving device U The unit 21 determines the reception order of the ID information of the LF transmitters 8a and 8b transmitted together with the identification information (step S5), and the ID information Tx_LF2 of the LF transmitter 8b is added after the ID information Tx_LF1 of the LF transmitter 8a. If it is transmitted, it is determined that the person M having the responder TG has moved from the communication area A2 to the communication area A1. That is, the control unit 21 of the receiving device U can determine that the person M having the responder TG is moving in a direction approaching the entrance door D, and the person M having the responder TG enters the room through the entrance door D. In order to permit this, the monitoring mode is switched from the previous warning setting state to the warning release state (step S6), and an open signal is sent from the electric lock I / F 20 to the electric lock control device LTU (step S7). At this time, in the electric lock control device LTU, the control unit 26 unlocks the electric lock LK by the electric lock driving unit 23 in accordance with the opening signal input via the external I / F 22 (step S8). Thereafter, the control unit 26 determines whether or not the entrance door D is once closed after being opened once based on the detection result of the open / close detection unit 24 (step S9), and when the entrance door D is closed again. The electric lock drive unit 23 locks the electric lock LK and transmits a standby signal from the external I / F 22 to the receiving device U. The standby signal is also transferred to the interrogator RW via the receiving device U. The RW and the receiving device U return to the standby state (step S1). On the other hand, if the closed state of the entrance door D is not detected by the open / close detection unit 24 even after a predetermined time has elapsed since the electric lock LK is unlocked in step S9, the control unit 26 opens the entrance door D. The notification signal is transmitted from the external I / F 22 to the receiving device U, and the receiving device U outputs an alarm sound from the alarm sound generating unit 17 or the display unit 16 generates an abnormality. By displaying it, the user is informed that the front door D remains open.
またステップS5において、LF送信部8bのID情報Tx_LF2の後にLF送信部8aのID情報Tx_LF1が送信されていれば、受信装置Uの制御部21は、応答器TGを持つ人物Mが通信エリアA1から通信エリアA2に移動したと判断する。つまり受信装置Uの制御部21では、応答器TGを持つ人物Mが玄関扉Dから離れる向きに進行していると判断でき、この応答器TGを持つ人物Mが玄関扉Dを通って退出したと判断して、監視モードをそれまでの警戒解除状態から警戒設定状態に切り替えるとともに(ステップS10)、電気錠I/F20から電気錠制御装置LTUに閉信号を送出する(ステップS11)。この時、電気錠制御装置LTUでは制御部26が、外部I/F22を介して入力された閉信号に応じて、電気錠駆動部23により電気錠LKを施錠させる(ステップS12)。その後、制御部26は、開閉検知部24の検知結果をもとに、玄関扉Dが確かに閉まっているか否か、つまり玄関扉Dが開いている状態で電気錠LKを施錠していないかを判断し(ステップS13)、玄関扉Dが閉じていれば、外部I/F22より受信装置Uへ待機信号を送信し、この待機信号が受信装置Uを介して質問器RWにも転送され、質問器RWおよび受信装置Uが待機状態に戻る(ステップS1)。一方、ステップS13において開閉検知部24により玄関扉Dの閉状態を検知できなかった場合、制御部26では玄関扉Dが開状態のまま電気錠LKが施錠したと判断して、外部I/F22から受信装置Uへ報知信号を送信し、受信装置Uにより警報音発生部17から警報音を出力させたり、表示部16に異常発生を表示させるなどして、玄関扉Dが開状態のままになっていることを知らしめる。   In step S5, if the ID information Tx_LF1 of the LF transmission unit 8a is transmitted after the ID information Tx_LF2 of the LF transmission unit 8b, the control unit 21 of the receiving device U causes the person M having the responder TG to communicate with the communication area A1. It is judged that it moved to communication area A2. That is, the control unit 21 of the receiving device U can determine that the person M having the responder TG is moving away from the entrance door D, and the person M having the responder TG has exited through the entrance door D. The monitoring mode is switched from the previous warning release state to the warning setting state (step S10), and a close signal is sent from the electric lock I / F 20 to the electric lock control device LTU (step S11). At this time, in the electric lock control device LTU, the control unit 26 locks the electric lock LK by the electric lock driving unit 23 in accordance with the closing signal input via the external I / F 22 (step S12). Thereafter, based on the detection result of the open / close detection unit 24, the control unit 26 confirms whether or not the entrance door D is closed, that is, whether the electric lock LK is locked with the entrance door D open. (Step S13), if the entrance door D is closed, the external I / F 22 transmits a standby signal to the receiving device U, and the standby signal is also transferred to the interrogator RW via the receiving device U. The interrogator RW and the receiving device U return to the standby state (step S1). On the other hand, if the open / close detection unit 24 cannot detect the closed state of the entrance door D in step S13, the control unit 26 determines that the electric lock LK is locked while the entrance door D is open, and the external I / F 22 A notification signal is transmitted to the receiving device U, and the receiving device U outputs an alarm sound from the alarm sound generating unit 17 or displays an abnormality occurrence on the display unit 16 so that the entrance door D remains open. Let them know that
なおステップS5において、応答器TGから送信されてきたLF送信部のID情報がLF送信部8a,8bのID情報Tx_LF1,Tx_LF2に一致しなければ、他の質問器RWに応答して送信された信号であると判断し、待機状態に戻る(ステップS1)。   In step S5, if the ID information of the LF transmitter transmitted from the responder TG does not match the ID information Tx_LF1 and Tx_LF2 of the LF transmitters 8a and 8b, the ID is transmitted in response to another interrogator RW. It is determined that the signal is a signal and the process returns to the standby state (step S1).
次に設備側の動作に対応した応答器TGの動作について図5を参照して説明する。応答器TGは電池6の電力を無駄に消費しないように、質問器RWからの電波を受信していない状態では、制御部5が動作モードを待機モードに切り換えており、この待機モードでは質問器RWからの電波を受信するのに必要な回路要素のみに電源を供給する低消費モードで待機している(ステップS21)。なお低消費モードで待機中は、応答器TGの各要素のうち、LF受信部2のみが低消費モードで待ち受け状態にあり、その他の回路要素は低消費モードよりも更に消費電力の小さいスリープモードに切り替えられている。特に最も電力消費の大きいRF送信部1は完全に電力供給を絶たれた状態となっている。   Next, the operation of the responder TG corresponding to the operation on the facility side will be described with reference to FIG. In order that the responder TG does not waste the power of the battery 6, the control unit 5 switches the operation mode to the standby mode in a state where the radio wave from the interrogator RW is not received. In this standby mode, the interrogator It waits in a low consumption mode in which power is supplied only to the circuit elements necessary for receiving radio waves from the RW (step S21). During standby in the low power consumption mode, only the LF receiver 2 is in the standby state in the low power consumption mode among the elements of the responder TG, and other circuit elements are in the sleep mode in which the power consumption is lower than in the low power consumption mode. It has been switched to. In particular, the RF transmitter 1 that consumes the largest amount of power is in a state where the power supply is completely cut off.
この待機状態において、応答器TGのLF受信部2が質問器RWからの誘導電磁波を受波すると(ステップS22)、その誘導電磁波(質問信号)に含まれるLF送信部のID情報を読み取り、読み取ったID情報がLF送信部8aのID情報Tx_LF1であるか、或いは、LF送信部8bのID情報Tx_LF2であるかを識別する(ステップS23)。この時、応答器TGでは、信号フォーマットとID情報のコードさえ一致していれば、対応していない他の質問器RWからの誘導電磁波を受波して復調する可能性もあり得るので、ID情報が予め登録されているLF送信部8a,8bのID情報Tx_LF1,Tx_LF2以外であれば、処理を中止してステップS21の待機状態に戻る。   In this standby state, when the LF receiver 2 of the responder TG receives the induced electromagnetic wave from the interrogator RW (step S22), the ID information of the LF transmitter included in the induced electromagnetic wave (question signal) is read and read. Whether the ID information is the ID information Tx_LF1 of the LF transmission unit 8a or the ID information Tx_LF2 of the LF transmission unit 8b is identified (step S23). At this time, in the responder TG, as long as the signal format and the ID information code match, there is a possibility that the induced electromagnetic wave from the other interrogator RW that does not correspond may be received and demodulated. If the information is other than the ID information Tx_LF1 and Tx_LF2 of the LF transmitters 8a and 8b registered in advance, the process is stopped and the process returns to the standby state in step S21.
ステップS23でID情報を識別した結果、制御部5が、LF送信部8bのID情報Tx_LF2と認識した場合、図示しないタイマにより一定時間tの限時動作を開始させ、タイマの限時動作が終了するまでの間(つまり一定時間tが経過するまでの間)に、LF受信部2が再び誘導電磁波を受波し、その誘導電磁波に含まれるID情報がLF送信部8aのID情報Tx_LF1であると認識できれば(ステップS24のY)、RF送信部1への電源供給を開始して、RF送信部1およびLF受信部2が共に通信可能な通常の送受信モードにウェイクアップするとともに、自己の識別情報と受信したLF送信部8b,8aのID情報Tx_LF2,Tx_LF1とを含む応答信号をRF送信部1から送信させた後(ステップS25)、ステップS21の待機状態に戻る。なお制御部5が、上記一定時間中に受信したID情報Tx_LF2,Tx_LF1を応答信号として送信する際には、ID情報Tx_LF2,Tx_LF1を受信した順番に送信しており、質問器RWでは応答器TGからの応答信号でID情報Tx_LF2,Tx_LF1を受信した順番をもとに、応答器TGが何れのID情報を先に受信したかを判断することが可能になっている。なお応答器TGでは、応答信号としてID番号を送信する際に、LF送信部8b,8aから受信した順番にID番号を送信しており、ID番号を送信する順番に、各ID番号を受信した順番の情報を含ませているが、各ID番号を受信した順番を示す情報を別途送信しても良い。   As a result of identifying the ID information in step S23, when the control unit 5 recognizes the ID information Tx_LF2 of the LF transmission unit 8b, a timed operation for a predetermined time t is started by a timer (not shown) until the timed operation of the timer ends. (That is, until a predetermined time t elapses), the LF receiver 2 receives the induced electromagnetic wave again, and the ID information included in the induced electromagnetic wave is recognized as the ID information Tx_LF1 of the LF transmitter 8a. If possible (Y in step S24), power supply to the RF transmitter 1 is started, and the RF transmitter 1 and the LF receiver 2 wake up to a normal transmission / reception mode in which they can communicate with each other. After the response signal including the received ID information Tx_LF2 and Tx_LF1 of the LF transmitters 8b and 8a is transmitted from the RF transmitter 1 (step S25), the process returns to the standby state of step S21. When the control unit 5 transmits the ID information Tx_LF2 and Tx_LF1 received during the predetermined time as a response signal, the ID information Tx_LF2 and Tx_LF1 are transmitted in the order received, and the interrogator RW responds with the responder TG. Based on the order in which the ID information Tx_LF2 and Tx_LF1 are received by the response signal from, it is possible to determine which ID information the responder TG has received first. In the responder TG, when transmitting ID numbers as response signals, the ID numbers are transmitted in the order received from the LF transmitters 8b and 8a, and the ID numbers are received in the order of transmitting the ID numbers. Although order information is included, information indicating the order in which each ID number is received may be transmitted separately.
またステップS23でID情報を識別した結果、制御部5が、LF送信部8aのID情報Tx_LF1と認識した場合、図示しないタイマにより一定時間tの限時動作を開始させ、タイマの限時動作が終了するまでの間に、LF受信部2が再び誘導電磁波を受波し、その誘導電磁波に含まれるID情報がLF送信部8bのID情報Tx_LF2であると認識できれば(ステップS26のY)、RF送信部1への電源供給を開始して通常の送受信モードにウェイクアップするとともに、自己の識別情報と受信したLF送信部8a,8bのID情報Tx_LF1,Tx_LF2とを含む応答信号をRF送信部1から送信させた後(ステップS27)、ステップS21の待機状態に戻る。   When the control unit 5 recognizes the ID information Tx_LF1 of the LF transmission unit 8a as a result of identifying the ID information in step S23, a time limit operation for a predetermined time t is started by a timer (not shown), and the time limit operation of the timer is ended. In the meantime, if the LF receiver 2 receives the induced electromagnetic wave again and the ID information included in the induced electromagnetic wave can be recognized as the ID information Tx_LF2 of the LF transmitter 8b (Y in step S26), the RF transmitter 1 starts power supply to 1 and wakes up to a normal transmission / reception mode, and transmits a response signal including its own identification information and received ID information Tx_LF1 and Tx_LF2 of the LF transmission units 8a and 8b from the RF transmission unit 1 (Step S27), the process returns to the standby state of Step S21.
またステップS21の待機状態において、応答器TGを携行する人物Mが操作SW4を操作すると、応答器TGの制御部5は、操作SW4の操作入力に応じてRF送信部1への電源供給を開始して通常の送受信モードにウェイクアップするとともに、自己の識別情報をRF送信部1から送信させた後、ステップS21の待機状態に戻っており、受信装置Uおよび電気錠制御装置LTUに質問器RWの受信した信号に基づいて所定の制御動作を行わせることができる。   When the person M carrying the responder TG operates the operation SW4 in the standby state in step S21, the control unit 5 of the responder TG starts supplying power to the RF transmission unit 1 in accordance with the operation input of the operation SW4. Then, after waking up to the normal transmission / reception mode and transmitting its own identification information from the RF transmission unit 1, it returns to the standby state of step S21, and the interrogator RW is sent to the reception device U and the electric lock control device LTU. A predetermined control operation can be performed based on the received signal.
以上説明したように本実施形態では、互いに通信エリアA1,A2が重ならないようにLF送信部8a,8bを配置しておき、応答器TGの制御部26では、LF受信部2が質問器RWからの無線信号を受信したとしても、所定時間t内に互いにID番号の異なる質問信号を複数受信していなければ、RF送信部1から応答信号を送信させないので、応答器TGからの無線信号の送信回数を減らすことができ、したがって電力消費を低減して、電池6の寿命を延ばすことができる。なお本実施形態ではLF送信部8a,8bの台数を2台としているので、所定時間内にLF送信部8a,8bのID情報を両方共に受信できた場合のみ、応答器TGが応答信号を送信するようにしているが、LF送信部の台数が3台以上の場合は予め登録された少なくとも2台のID情報を受信できた場合のみ応答信号を送信するようにすれば良く、対応する質問器以外の質問器から送信された質問信号に応答して送信信号を出力するのを防止でき、また複数のID番号を返送することで応答器TGを持つ人物の移動方向を判別することができる。またLF送信部8a,8bの通信エリアA1,A2が全く重なっていない場合には上述のように各LF送信部8a,8bから同時に質問信号を送信することができるが、通信エリアA1,A2が部分的に重なっている場合には、複数台のLF送信部が互いに送波期間をずらして質問信号を送信すれば良く、各LF送信部から送信される無線信号の干渉を回避することができる。   As described above, in the present embodiment, the LF transmitters 8a and 8b are arranged so that the communication areas A1 and A2 do not overlap each other, and in the controller 26 of the responder TG, the LF receiver 2 is connected to the interrogator RW. Even if a radio signal from the responder TG is received, if a plurality of interrogation signals having different ID numbers are not received within a predetermined time t, the RF transmitter 1 does not transmit a response signal. The number of transmissions can be reduced, thus reducing power consumption and extending the life of the battery 6. In this embodiment, since the number of LF transmitters 8a and 8b is two, the responder TG transmits a response signal only when both the ID information of the LF transmitters 8a and 8b can be received within a predetermined time. However, when the number of LF transmitters is 3 or more, it is sufficient to transmit a response signal only when ID information of at least two registered in advance can be received. It is possible to prevent a transmission signal from being output in response to an interrogator signal transmitted from any other interrogator, and to determine the moving direction of the person having the responder TG by returning a plurality of ID numbers. When the communication areas A1 and A2 of the LF transmitters 8a and 8b are not overlapped at all, a question signal can be transmitted simultaneously from each of the LF transmitters 8a and 8b as described above, but the communication areas A1 and A2 are In the case of partial overlap, a plurality of LF transmitters may transmit the interrogation signal while shifting the transmission period from each other, and interference of radio signals transmitted from each LF transmitter can be avoided. .
また受信装置Uの制御部26には、図示しないメモリに玄関扉DとLF送信部8a,8bとの相対的な位置関係が予め登録されており、応答器TGの制御部5では、所定時間内に互いにID番号の異なる質問信号を複数受信した場合は、自己の識別情報とともに、所定時間内に受信した全てのID番号を各ID番号が受信された順番でRF送信部1から送信させているので、受信装置Uの制御部26では図4のステップS5の処理により、応答器TGを持った人物Mが玄関扉Dに近付く向きに移動しているのか、それとも玄関扉Dから離れる向きに移動しているのかを判断でき、図4のフロー図で説明したように移動方向に応じた制御を行うことが可能になる。   Further, the relative positional relationship between the entrance door D and the LF transmitters 8a and 8b is registered in advance in the control unit 26 of the receiving device U in a memory (not shown), and the control unit 5 of the responder TG has a predetermined time. When a plurality of interrogation signals having different ID numbers are received, all ID numbers received within a predetermined time are transmitted from the RF transmitter 1 in the order in which each ID number is received, along with its own identification information. Therefore, in the control unit 26 of the receiving device U, whether the person M having the responder TG is moving in the direction approaching the entrance door D or in the direction away from the entrance door D by the process in step S5 in FIG. It can be determined whether it is moving or not, and control according to the moving direction can be performed as described in the flowchart of FIG.
なお本実施形態では、質問器RWと受信装置Uとの間で通信を行い、質問器RWが応答器TGからの応答信号を受信すると、受信した応答信号に含まれる識別情報を受信装置Uに出力しているが、図6に示すように、電気錠制御装置LTUに、質問器RWの外部I/F12を通信可能に接続する質問器インターフェース(以下質問器I/Fという)27を設け、電気錠制御装置LTUと質問器RWとの間で通信を行うようにしても良い。この場合、電気錠制御装置LTUでは、質問器RWからの質問信号に対して応答器TGから返送されてきた応答信号に含まれる識別情報が、制御部26の内部メモリ(図示せず)に予め登録された識別情報と一致していれば、電気錠駆動部23により電気錠LKの解錠又は施錠を行うとともに、外部I/F22から受信装置Uの電気錠I/F20に対して有線で制御信号を送信し、受信装置Uの制御部21により監視モードを警戒設定状態又は警戒解除状態の何れかに切り替えさせる。   In the present embodiment, communication is performed between the interrogator RW and the receiving device U. When the interrogator RW receives a response signal from the responder TG, the identification information included in the received response signal is transmitted to the receiving device U. As shown in FIG. 6, the electric lock control device LTU is provided with an interrogator interface (hereinafter referred to as an interrogator I / F) 27 for connecting the external I / F 12 of the interrogator RW so that communication is possible. Communication may be performed between the electric lock control device LTU and the interrogator RW. In this case, in the electric lock control device LTU, the identification information included in the response signal returned from the responder TG in response to the interrogation signal from the interrogator RW is stored in advance in an internal memory (not shown) of the control unit 26. If it matches the registered identification information, the electric lock drive unit 23 unlocks or locks the electric lock LK, and the external I / F 22 controls the electric lock I / F 20 of the receiving device U by wire. A signal is transmitted, and the monitoring unit 21 of the receiving device U switches the monitoring mode to either the alert setting state or the alert release state.
また上述の受信装置Uを集合住宅の各住戸に設置して使用する場合は、図7に示すように各住戸に設置される住宅情報盤Yに受信装置Uの機能を組み込むようにしても良い。なお図7中のXは管理人室などに設置される監視盤Xであり、各住戸の住宅情報盤Yは監視盤Xとの間で信号線Lを介して通信可能となっている。つまり、質問器RWからの信号を受ける機器としてはセキュリティ機器を構成する受信装置U、電気錠制御装置LTU、又は住宅情報盤Yの何れでも良く、セキュリティ機器に質問器RWの機能を持たせても良い。   In addition, when the above-described receiving device U is installed and used in each dwelling unit of the apartment house, the function of the receiving device U may be incorporated in the housing information panel Y installed in each dwelling unit as shown in FIG. . Note that X in FIG. 7 is a monitoring panel X installed in a manager's room or the like, and the housing information panel Y of each dwelling unit can communicate with the monitoring panel X via a signal line L. That is, the device that receives the signal from the interrogator RW may be any of the receiving device U, the electric lock control device LTU, or the house information panel Y that constitutes the security device, and the security device has the function of the interrogator RW. Also good.
なお、本発明の精神と範囲に反することなしに、広範に異なる実施形態を構成することができることは明白なので、この発明は、特定の実施形態に制約されるものではない。   It should be noted that a wide variety of different embodiments can be configured without departing from the spirit and scope of the present invention, and the present invention is not limited to a specific embodiment.
本実施形態のセキュリティシステムの要部を示したブロック図である。It is the block diagram which showed the principal part of the security system of this embodiment. 同上の他の要部を示したブロック図である。It is the block diagram which showed the other principal part same as the above. 同上の使用状態を説明する配置説明図である。It is arrangement | positioning explanatory drawing explaining the use condition same as the above. 同上の設備側の動作を説明するフローチャートである。It is a flowchart explaining operation | movement by the side of the installation same as the above. 同上の応答器の動作を説明するフローチャートである。It is a flowchart explaining operation | movement of a responder same as the above. 同上の他の構成を示したブロック図である。It is the block diagram which showed the other structure same as the above. 同上のまた別の構成を示したブロック図である。It is the block diagram which showed another structure same as the above.
符号の説明Explanation of symbols
RW 質問器
TG 応答器
U 受信装置
LTU 電気錠制御装置
LK 電気錠
D 玄関扉
W 通路
1 RF送信部
2 LF受信部
5 制御部
8a,8b LF送信部
RW Interrogator TG Responder U Receiver LTU Electric lock controller LK Electric lock D Entrance door W Passage 1 RF transmitter 2 LF receiver 5 Controller 8a, 8b LF transmitter

Claims (3)

  1. 個別の識別情報が設定され、外部から無線信号で送信された質問信号を受信すると、自己の識別情報を含む応答信号を無線信号で返送する無線通信部、無線通信部の通信を制御する通信制御部、及び内部回路に電源を供給する電池を具備した応答器と、
    扉の外側にある通路の進行方向に沿って互いに離して配置され、それぞれ外部に無線信号で質問信号を送信する複数の無線送信部、及び応答器から返送された応答信号を受信する無線受信部を具備した質問器と、
    質問器の受信した応答信号に含まれる識別情報が予め登録された識別情報に一致すると、受信した応答信号に応じた処理を行うセキュリティ機器とを備え、
    複数の無線送信部には個別のID番号が割り当てられ、
    各々の無線送信部は自己のID番号を含む質問信号を無線信号により送信し、
    応答器の通信制御部は、無線通信部が所定時間内に互いにID番号が異なる質問信号を少なくとも2つ受信した場合のみ、前記所定時間内に受信した全てのID番号およびID番号の受信順序を示す情報を自己の識別情報とともに無線通信部から送信させ
    セキュリティ機器は、質問器の受信した応答信号に含まれる識別情報が予め登録された識別情報に一致すると、前記応答信号に含まれるID番号の受信順序を示す情報に基づいて応答器の移動方向を判定し、当該移動方向に基づいて、扉に設けた電気錠の施錠又は解錠、或いは、室内の監視モードを警戒設定又は警戒解除に切り替えるモード切替の内少なくとも何れか一つを前記処理として行うことを特徴とするセキュリティシステム。
    Communication control that controls the communication of the wireless communication unit and the wireless communication unit that returns the response signal including its own identification information as a wireless signal when individual identification information is set and the inquiry signal transmitted from the outside is transmitted as a wireless signal And a responder comprising a battery for supplying power to the internal circuit,
    A plurality of wireless transmission units that are arranged apart from each other along the advancing direction of the passage on the outside of the door, and each transmit a question signal as a wireless signal to the outside, and a wireless reception unit that receives the response signal returned from the responder An interrogator comprising:
    When the identification information included in the response signal received by the interrogator matches the identification information registered in advance, the security device performs processing according to the received response signal ,
    Individual ID numbers are assigned to a plurality of wireless transmission units,
    Each wireless transmission unit transmits a question signal including its own ID number by wireless signal ,
    The communication control unit of the responder determines the reception order of all ID numbers and ID numbers received within the predetermined time only when the wireless communication unit receives at least two question signals having different ID numbers within the predetermined time. Information to be transmitted from the wireless communication unit together with its own identification information ,
    When the identification information included in the response signal received by the interrogator matches the identification information registered in advance, the security device determines the moving direction of the response device based on the information indicating the reception order of the ID numbers included in the response signal. Based on the direction of movement, at least one of locking or unlocking of an electric lock provided on the door or mode switching for switching the indoor monitoring mode to warning setting or warning cancellation is performed as the processing. Security system characterized by that.
  2. 応答器の通信制御部は、無線通信部が予め登録されているID番号であって、互いにID番号が異なる質問信号を所定時間内に少なくとも2つ受信した場合のみ、前記所定時間内に受信した全てのID番号およびID番号の受信順序を示す情報を自己の識別情報とともに無線通信部から送信させることを特徴とする請求項1記載のセキュリティシステム。   The communication control unit of the responder receives the ID number registered in advance in the predetermined time only when the wireless communication unit receives at least two question signals having different ID numbers within a predetermined time. 2. The security system according to claim 1, wherein all the ID numbers and information indicating the reception order of the ID numbers are transmitted from the wireless communication unit together with identification information of the ID numbers.
  3. 各々の無線送信部が互いに送波期間をずらして無線信号を送信することを特徴とする請求項1又は2記載のセキュリティシステム。   3. The security system according to claim 1, wherein each of the wireless transmission units transmits a wireless signal with a transmission period shifted from each other.
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