WO2017168550A1 - Communication adapter device, data communication system, and data communication method - Google Patents

Communication adapter device, data communication system, and data communication method Download PDF

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Publication number
WO2017168550A1
WO2017168550A1 PCT/JP2016/060057 JP2016060057W WO2017168550A1 WO 2017168550 A1 WO2017168550 A1 WO 2017168550A1 JP 2016060057 W JP2016060057 W JP 2016060057W WO 2017168550 A1 WO2017168550 A1 WO 2017168550A1
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Prior art keywords
communication
signal
monitoring center
packet
monitoring
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PCT/JP2016/060057
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French (fr)
Japanese (ja)
Inventor
明彦 渡邊
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三菱電機ビルテクノサービス株式会社
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Priority to PCT/JP2016/060057 priority Critical patent/WO2017168550A1/en
Priority to JP2016555799A priority patent/JP6227161B1/en
Priority to CN201680084155.5A priority patent/CN108886555B/en
Priority to KR1020187030793A priority patent/KR102136477B1/en
Priority to DE112016006690.2T priority patent/DE112016006690T5/en
Publication of WO2017168550A1 publication Critical patent/WO2017168550A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1053—IP private branch exchange [PBX] functionality entities or arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer

Definitions

  • the present invention relates to a communication adapter device connected to a circuit switching type monitoring device and transmitting / receiving data to / from a monitoring center via a packet switching network, a data communication system and a data communication method to which the communication adapter device is applied. .
  • monitoring data of a monitoring target such as an elevator is transmitted to a monitoring center installed in a remote place via a communication line, or a voice call is performed between the monitoring target and the monitoring center. Yes.
  • the monitoring device to be monitored and the remote monitoring unit of the monitoring center are connected to each other by a line switching system through a modem via a fixed telephone line or a PHS (Personal Handy-phone System) line. Some of them perform analog modem communication for transmitting and receiving analog audio signals.
  • the circuit switching method means that a physical or virtual one-to-one transmission path is set between the monitoring device and the remote monitoring unit from the start of communication to the end of communication, and the line is occupied to transmit and receive data. Is to do.
  • a packet switching network which is a mobile phone line such as LTE (Long Term Evolution), is used, and data is divided into small units called packets, and each packet is transmitted and received individually.
  • LTE Long Term Evolution
  • the packet switching method is becoming mainstream.
  • the packet switching method when a packet is not normally transmitted, the packet is retransmitted by retry.
  • a voice packet conversion processing unit configured to be able to transmit and receive an analog voice signal to and from the monitored unit, and to perform mutual conversion between the analog voice signal and the packet transmitted and received to and from the monitored unit
  • packet exchange Wireless communication configured to be able to perform wireless communication with a mobile communication network having a network, and performing mutual conversion between a wireless transmission signal transmitted / received to / from the mobile communication network and a packet processed by a packet conversion processing unit
  • a communication adapter device including a module has been proposed (for example, see Patent Document 1).
  • the prior art has the following problems. That is, in the analog modem communication, the carrier wave is always transmitted while the communication is continued, and the modem IC determines that the line is disconnected when the carrier wave is interrupted.
  • the packet arrives late when the packet is not transmitted normally or when the packet is retransmitted or when the packet switched network is congested. In this case, there is a problem that it may be determined that the line is disconnected even though the carrier wave is interrupted and the data communication is not completed.
  • the present invention has been made to solve the above-described problems, and is a communication adapter that is connected to a circuit switching type monitoring device and can perform communication by other means even if data communication fails.
  • the object is to obtain a device.
  • a communication adapter device is a communication adapter device that is connected to a circuit switching type monitoring device and transmits / receives data to / from a monitoring center via a packet switching network, and receives an analog voice signal from the monitoring device.
  • a packet processing unit that converts the packet from the monitoring center into an analog voice signal
  • a PB signal recognition unit that recognizes a PB signal included in the analog voice signal and indicates the end of communication
  • a PB signal recognition unit When the PB signal is recognized, it is determined that the communication is successful, and when the line is disconnected even though the PB signal is not recognized, a control unit that waits for a predetermined time and a control unit If there is no outgoing or incoming call after waiting for a certain period of time, a message is sent to the monitoring center, and the monitoring device and the monitoring center It is obtained by a message transmission unit for notifying that the communication has failed.
  • the communication adapter device is a communication adapter device that is connected to a circuit switching type monitoring device and transmits / receives data to / from a monitoring center via a packet switching network, wherein the packet processing unit
  • the analog voice signal from the apparatus is converted into a packet
  • the packet from the monitoring center is converted into an analog voice signal.
  • the PB signal recognition unit recognizes and controls the PB signal included in the analog voice signal and indicating the end of communication. When the PB signal recognition unit recognizes the PB signal, the unit determines that the communication is successful, and waits for a predetermined time when the line is disconnected even though the PB signal is not recognized.
  • the message transmission unit transmits a message to the monitoring center when there is no outgoing or incoming call even after the control unit waits for a certain period of time.
  • Visual device and communication with the monitoring center is notified of the failure. Therefore, it is possible to obtain a communication adapter device that is connected to a circuit switching type monitoring device and can communicate with other means even if data communication fails.
  • FIG. 1 is a configuration diagram showing a data communication system to which a communication adapter device according to Embodiment 1 of the present invention is applied.
  • this data communication system is configured such that a monitoring target 10 and a monitoring center 20 are connected to each other via a packet switching network 30.
  • the monitoring object 10 modulates a microphone 2 and a speaker 3 (for example, an interphone) provided in the car of the elevator 1, a monitoring device 4 connected to the elevator 1, and an audio signal from the monitoring device 4. , A modem 5 that outputs as a modem signal, and a communication adapter device 6 connected to the modem 5.
  • a microphone 2 and a speaker 3 for example, an interphone
  • a monitoring device 4 connected to the elevator 1
  • a modem 5 that outputs as a modem signal
  • a communication adapter device 6 connected to the modem 5.
  • the monitoring device 4 transmits the monitoring data of the elevator 1 to the monitoring center 20 and makes a voice call with the monitoring center 20 using the microphone 2 and the speaker 3.
  • the modem 5 and the communication adapter device 6 are connected to each other using the fixed telephone line 7 as an interface (hereinafter referred to as a fixed telephone line I / F).
  • the monitoring center 20 is connected to the packet communication network 30 by a dedicated line 8.
  • the monitoring center 20 is provided with an SMS receiving unit 24 that receives an SMS (short message service) message from the communication adapter device 6 when the data communication is not normally completed.
  • SMS short message service
  • the communication adapter device 6 converts the analog voice signal (modem signal) from the fixed telephone line I / F into a digital voice signal by compressing it to 64 Kbps when not compressed, or compressing it to about 32 Kbps when compressing, Packetized and transmitted to the packet communication network 30.
  • modem signal analog voice signal
  • the communication adapter device 6 converts the analog voice signal (modem signal) from the fixed telephone line I / F into a digital voice signal by compressing it to 64 Kbps when not compressed, or compressing it to about 32 Kbps when compressing, Packetized and transmitted to the packet communication network 30.
  • the communication adapter device 6 receives a packet from the packet switching network 30, converts a digital voice signal of about 64 Kbps or 32 Kbps into an analog voice signal, and transmits the analog voice signal to the fixed telephone line I / F.
  • the communication adapter device 6 converts the analog voice signal from the fixed telephone line I / F or the analog voice signal obtained by converting the packet from the packet switching network 30 into a PB (push button) signal (DTMF: dual) of a specific pattern. tones (multiplexed frequency) is being checked.
  • the PB signal is a signal that is transmitted when the notification from the monitoring device 4 and the polling from the monitoring center 20 are normally completed.
  • the communication adapter device 6 considers that the notification or polling is successful when the PB signal of a specific pattern is detected after the start of the notification or polling.
  • the communication adapter device 6 considers that the notification or polling has failed when the line is disconnected even though the PB signal of the specific pattern is not detected after the start of the notification or polling. Alternatively, since the polling is retried as described above, it waits for a predetermined time.
  • the communication adapter device 6 determines that a retry is over when there is no outgoing call or incoming call for polling or polling even after waiting for a certain period of time, and it is transmitted by means other than the packet switching network 30 such as SMS.
  • the monitoring center 20 is notified that the notification or polling has failed.
  • the monitoring center 20 is notified of the failure even if the notification or polling fails due to congestion of the packet switching network 30 or the like. Therefore, the cost can be reduced and the monitoring quality can be improved.
  • FIG. 2 is a block configuration diagram showing the communication adapter device according to the first embodiment of the present invention.
  • FIG. 3 is a block diagram showing the monitoring center according to Embodiment 1 of the present invention.
  • the communication adapter device 6 includes a telephone line processing unit 11, an A / D conversion unit 12, a packet processing unit 13, a wireless processing unit 14, a PB signal recognition unit 15, an SMS transmission unit 16, and a control unit 17.
  • the control unit 17 is a CPU (Central Processing Unit).
  • the telephone line processing unit 11 calls the monitoring center 20 when detecting an operation related to transmission (dialing from the monitoring device 4) such as start of a call by the microphone 2 or transmission of monitoring data from the monitoring device 4; A ringer (calling signal) is transmitted when an incoming call is received from the monitoring center 20.
  • the A / D converter 12 converts the analog voice signal from the fixed telephone line I / F into a digital voice signal, and converts the digital voice signal in which the packets from the packet switching network 30 are rearranged in the packet order into the analog voice. Convert to signal.
  • the A / D conversion unit 12 compresses or decodes the analog audio signal.
  • the packet processing unit 13 divides the digital audio signal from the A / D conversion unit 12 into packets and rearranges the packets from the packet switching network 30 in the order of packets.
  • the wireless processing unit 14 transmits the packet from the packet processing unit 13 to the packet switching network 30 and receives the packet from the packet switching network 30.
  • the PB signal recognition unit 15 checks whether an analog voice signal from the fixed telephone line I / F or an analog voice signal obtained by converting a packet from the packet switching network 30 includes a PB signal having a specific pattern. .
  • the SMS transmission unit 16 sends SMS to the monitoring center 20 according to a command from the control unit 17 when the notification from the monitoring device 4 and the polling from the monitoring center 20 are not normally completed. Send a message.
  • the control unit 17 controls operations of the telephone line processing unit 11, the A / D conversion unit 12, the packet processing unit 13, the wireless processing unit 14, the PB signal recognition unit 15, and the SMS transmission unit 16.
  • the monitoring center 20 has a packet processing unit 21, an A / D conversion unit 22, a modem communication unit 23, an SMS receiving unit 24, a control unit 25, a modem 26, and a remote monitoring unit 27.
  • the control unit 25 is a CPU.
  • the packet processing unit 21 rearranges the packets from the packet switching network 30 in the order of packets and divides the digital audio signal from the A / D conversion unit 22 into packets.
  • the A / D converter 22 converts a digital audio signal in which packets from the packet switching network 30 are rearranged in the packet order into an analog audio signal, and converts the analog audio signal from the modem communication unit 23 into a digital audio signal. Convert.
  • the modem communication unit 23 transmits the analog audio signal from the A / D conversion unit 22 to the modem 26 and receives the modem signal from the modem 26. Further, the SMS receiver 24 receives a message from the SMS transmitter 16.
  • the control unit 25 controls operations of the packet processing unit 21, the A / D conversion unit 22, the modem communication unit 23, and the SMS receiving unit 24.
  • the modem 26 demodulates the analog audio signal from the modem communication unit 23 and transmits it to the remote monitoring unit 27, and modulates the signal from the remote monitoring unit 27 and transmits it to the modem communication unit 23.
  • the remote monitoring unit 27 receives a signal from the modem 26 and transmits a signal to the modem 26 at the time of polling.
  • FIG. 4 is a sequence diagram showing a flow of communication between the monitoring apparatus and the monitoring center according to Embodiment 1 of the present invention.
  • the upper part shows notification from the monitoring apparatus 4 to the monitoring center 20, and the lower part shows polling from the monitoring center 20 to the monitoring apparatus 4.
  • the number of the monitoring center 20 is dialed from the monitoring device 4. Subsequently, when the monitoring center 20 and the line are connected, modem communication is started. Next, when the reporting is completed normally, the monitoring device 4 outputs a PB signal, the PB signal recognition unit 15 of the communication adapter device 6 recognizes the PB signal, determines that the communication is successful, and the monitoring device 4 Disconnect the line.
  • the monitoring center 20 outputs a PB signal, the PB signal recognition unit 15 of the communication adapter device 6 recognizes the PB signal and determines that the communication is successful. Disconnect.
  • FIG. 5 is executed when, for example, the telephone line processing unit 11 of the communication adapter device 6 detects a report from the monitoring device 4 or a polling from the monitoring center 20.
  • the communication adapter device 6 determines whether or not the communication is outgoing (step S1).
  • the communication adapter device 6 determines that communication is outgoing when dialed from the monitoring device 4.
  • step S2 determines whether the communication is an incoming call (step S2).
  • the communication adapter device 6 receives an incoming signal from the packet switching network 30, it determines that the communication is incoming.
  • step S2 If it is determined in step S2 that the communication is not an incoming call (that is, No), the communication adapter device 6 proceeds to step S1 and determines again whether the communication is an outgoing call.
  • step S3 if it is determined in step S2 that the communication is incoming (that is, Yes), the communication adapter device 6 turns off the PB flag at the start of communication (step S3).
  • the communication adapter device 6 performs modem communication between the monitoring device 4 and the monitoring center 20 (step S4).
  • the modem communication here assumes, for example, communication of a plurality of packets related to polling for one time.
  • the communication adapter device 6 determines whether or not the PB signal of the specific pattern is recognized by the PB recognition unit 15 (step S5).
  • step S5 If it is determined in step S5 that the PB signal has been recognized (that is, Yes), the communication adapter device 6 turns on the PB flag (step S6) and determines whether or not the line is disconnected (step S6). Step S7).
  • step S5 determines whether or not the PB signal is not recognized (that is, No)
  • the communication adapter device 6 proceeds to step S7 as it is and determines whether or not the line is disconnected.
  • step S7 If it is determined in step S7 that the line is not disconnected (that is, No), the process proceeds to step S4 and modem communication is executed again.
  • step S7 determines whether or not the line is disconnected (that is, Yes)
  • the communication adapter device 6 determines whether or not the PB flag is on (step S8).
  • step S8 If it is determined in step S8 that the PB flag is not on (that is, No), it is determined that a retry has been made, and a predetermined time is awaited (step S9).
  • the fixed time is assumed to be a time with a further allowance for the time for performing a plurality of retries, for example, about 3 to 5 minutes.
  • the communication adapter device 6 determines whether there is an incoming call during the standby time (step S10).
  • step S10 if it is determined that there is an incoming call (that is, Yes), the process proceeds to step S3, the PB flag is turned off, and communication is resumed.
  • step S10 determines a retry over and transmits a message from the SMS transmission unit 16 to the monitoring center 20 (step S11). ).
  • step S8 if it is determined in step S8 that the PB flag is on (that is, Yes), the communication adapter device 6 ends the process of FIG.
  • step S1 determines whether the communication is outgoing (that is, Yes). If it is determined in step S1 that the communication is outgoing (that is, Yes), the communication adapter device 6 turns off the PB flag at the start of communication (step S13).
  • the communication adapter device 6 performs modem communication between the monitoring device 4 and the monitoring center 20 (step S14).
  • the modem communication here is assumed to be communication of a plurality of packets related to one-time transmission, for example.
  • the communication adapter device 6 determines whether or not the PB signal of the specific pattern is recognized by the PB recognition unit 15 (step S15).
  • step S15 If it is determined in step S15 that the PB signal has been recognized (ie, Yes), the communication adapter device 6 turns on the PB flag (step S16) and determines whether or not the line has been disconnected (step S16). Step S17).
  • step S15 if it is determined in step S15 that the PB signal is not recognized (that is, No), the communication adapter device 6 proceeds to step S17 as it is and determines whether or not the line is disconnected.
  • step S17 If it is determined in step S17 that the line has not been disconnected (that is, No), the process proceeds to step S14 and modem communication is executed again.
  • step S17 determines whether or not the line is disconnected (that is, Yes).
  • step S18 If it is determined in step S18 that the PB flag is not on (that is, No), it is determined that a retry has been made, and a predetermined time is awaited (step S19).
  • the fixed time is assumed to be a time with a further allowance for the time for performing a plurality of retries, for example, about 3 to 5 minutes.
  • the communication adapter device 6 determines whether or not there is a call during the standby time (step S20).
  • step S20 If it is determined in step S20 that a call has been made (that is, Yes), the process proceeds to step S13, the PB flag is turned off, and communication is resumed.
  • step S20 determines a retry over and transmits a message from the SMS transmission unit 16 to the monitoring center 20 (step S21). ).
  • the communication adapter device is connected to the circuit switching type monitoring device and transmits / receives data to / from the monitoring center via the packet switching network.
  • the analog voice signal from the monitoring device is converted into a packet, and the packet from the monitoring center is converted into an analog voice signal.
  • the PB signal recognition unit recognizes the PB signal included in the analog voice signal and indicating the end of communication.
  • the control unit determines that the communication is successful, and when the line is disconnected even though the PB signal is not recognized, a predetermined constant is determined.
  • the message transmission unit waits for a certain period of time, and after the control unit waits for a certain period of time, if there is no outgoing or incoming call, the message transmission unit sends an SMS message to the monitoring center. And Shin, notifying that the monitoring device and the communication with the monitoring center fails. Therefore, it is possible to obtain a communication adapter device that is connected to a circuit switching type monitoring device and can communicate with other means (SMS) even if data communication fails.
  • SMS means

Abstract

Provided is a communication adapter device that is connected to a circuit-switching monitoring device and can communicate using other means if data communication is lost. The communication adapter device comprises a packet processing unit that converts an analog audio signal from the monitoring device into packets and converts packets from a monitoring center into an analog audio signal; a PB signal identification unit that identifies a PB signal, which is included in the analog audio signal and which indicates the end of communication; a control unit that determines communication a success once the PB signal identification unit has identified the PB signal, and stands by for a prescribed fixed amount of time if the line is cut off with no PB signal having been identified; and a message transmission unit that transmits a message to the monitoring center to announce that communication between the monitoring device and the monitoring center has been lost if no transmission has been sent or received after the control unit has stood by for the fixed amount of time.

Description

通信アダプタ装置およびデータ通信システム、並びにデータ通信方法Communication adapter device, data communication system, and data communication method
　この発明は、回線交換方式の監視装置に接続され、パケット交換網を介して監視センターとの間でデータを送受信する通信アダプタ装置、この通信アダプタ装置が適用されたデータ通信システムおよびデータ通信方法に関する。 The present invention relates to a communication adapter device connected to a circuit switching type monitoring device and transmitting / receiving data to / from a monitoring center via a packet switching network, a data communication system and a data communication method to which the communication adapter device is applied. .
　従来から、エレベータ等の監視対象の監視データを、通信回線を介して遠隔地に設置された監視センターに送信したり、監視対象と監視センターとの間で音声通話したりすることが行われている。 Conventionally, monitoring data of a monitoring target such as an elevator is transmitted to a monitoring center installed in a remote place via a communication line, or a voice call is performed between the monitoring target and the monitoring center. Yes.
　このとき、監視対象の監視装置と監視センターの遠隔監視部とが、モデムを介して固定電話回線やＰＨＳ（Ｐｅｒｓｏｎａｌ　Ｈａｎｄｙ－ｐｈｏｎｅ　Ｓｙｓｔｅｍ）回線により回線交換方式で接続され、監視装置と遠隔監視部との間でアナログ音声信号を送受信するアナログモデム通信を行うものがある。なお、回線交換方式とは、通信開始から通信終了までの間、監視装置と遠隔監視部との間で物理的または仮想的な一対一の伝送路を設定し、回線を占有してデータの送受信を行うものである。 At this time, the monitoring device to be monitored and the remote monitoring unit of the monitoring center are connected to each other by a line switching system through a modem via a fixed telephone line or a PHS (Personal Handy-phone System) line. Some of them perform analog modem communication for transmitting and receiving analog audio signals. Note that the circuit switching method means that a physical or virtual one-to-one transmission path is set between the monitoring device and the remote monitoring unit from the start of communication to the end of communication, and the line is occupied to transmit and receive data. Is to do.
　また、近年では、回線交換方式に代えて、ＬＴＥ（Ｌｏｎｇ　Ｔｅｒｍ　Ｅｖｏｌｕｔｉｏｎ）等の携帯電話回線であるパケット交換網を用い、データをパケットと呼ばれる小さな単位に分割して、それぞれのパケットを個別に送受信するパケット交換方式が主流になっている。なお、パケット交換方式では、パケットが正常に送信されなかった場合に、当該パケットがリトライにより再送信される。 In recent years, instead of the circuit switching method, a packet switching network, which is a mobile phone line such as LTE (Long Term Evolution), is used, and data is divided into small units called packets, and each packet is transmitted and received individually. The packet switching method is becoming mainstream. In the packet switching method, when a packet is not normally transmitted, the packet is retransmitted by retry.
　ここで、被監視部との間でアナログ音声信号を送受信可能に構成され、被監視部との間で送受信されるアナログ音声信号とパケットとの相互変換を行う音声パケット変換処理部と、パケット交換網を有する移動体通信網との間で無線通信可能に構成され、移動体通信網との間で送受信される無線伝送信号とパケット変換処理部で処理されるパケットとの相互変換を行う無線通信モジュールとを備えた通信アダプタ装置が提案されている（例えば、特許文献１参照）。 Here, a voice packet conversion processing unit configured to be able to transmit and receive an analog voice signal to and from the monitored unit, and to perform mutual conversion between the analog voice signal and the packet transmitted and received to and from the monitored unit, and packet exchange Wireless communication configured to be able to perform wireless communication with a mobile communication network having a network, and performing mutual conversion between a wireless transmission signal transmitted / received to / from the mobile communication network and a packet processed by a packet conversion processing unit A communication adapter device including a module has been proposed (for example, see Patent Document 1).
特開２０１１－２４９８６０号公報JP2011-249860A
　しかしながら、従来技術には、以下のような課題がある。
　すなわち、アナログモデム通信では、通信が継続している間、常に搬送波が送信されており、モデムＩＣは、搬送波が途切れると回線が切断されたと判断する。 However, the prior art has the following problems.
That is, in the analog modem communication, the carrier wave is always transmitted while the communication is continued, and the modem IC determines that the line is disconnected when the carrier wave is interrupted.
　そのため、特許文献１に記載された通信アダプタ装置を回線交換方式の監視装置に適用すると、パケットが正常に送信されずパケットが再送信される場合や、パケット交換網の混雑時にパケットが遅れて届く場合に、搬送波が途切れ、データ通信が終了していないにもかかわらず、回線が切断されたと判断する恐れがあるという問題がある。 Therefore, when the communication adapter device described in Patent Document 1 is applied to a circuit switching type monitoring device, the packet arrives late when the packet is not transmitted normally or when the packet is retransmitted or when the packet switched network is congested. In this case, there is a problem that it may be determined that the line is disconnected even though the carrier wave is interrupted and the data communication is not completed.
　この発明は、上記のような課題を解決するためになされたものであり、回線交換方式の監視装置に接続され、データ通信が失敗しても、他の手段で通信を行うことができる通信アダプタ装置を得ることを目的とする。 The present invention has been made to solve the above-described problems, and is a communication adapter that is connected to a circuit switching type monitoring device and can perform communication by other means even if data communication fails. The object is to obtain a device.
　この発明に係る通信アダプタ装置は、回線交換方式の監視装置に接続され、パケット交換網を介して監視センターとの間でデータを送受信する通信アダプタ装置であって、監視装置からのアナログ音声信号をパケットに変換するとともに、監視センターからのパケットをアナログ音声信号に変換するパケット処理部と、アナログ音声信号に含まれ、通信終了を示すＰＢ信号を認識するＰＢ信号認識部と、ＰＢ信号認識部でＰＢ信号を認識した場合に、通信成功と判断するとともに、ＰＢ信号を認識していないにもかかわらず、回線が切断された場合に、あらかじめ定められた一定時間待機する制御部と、制御部が一定時間待機した後も、発信または着信がない場合に、監視センターに対してメッセージを送信し、監視装置と監視センターとの通信が失敗したことを通知するメッセージ送信部とを備えたものである。 A communication adapter device according to the present invention is a communication adapter device that is connected to a circuit switching type monitoring device and transmits / receives data to / from a monitoring center via a packet switching network, and receives an analog voice signal from the monitoring device. A packet processing unit that converts the packet from the monitoring center into an analog voice signal, a PB signal recognition unit that recognizes a PB signal included in the analog voice signal and indicates the end of communication, and a PB signal recognition unit When the PB signal is recognized, it is determined that the communication is successful, and when the line is disconnected even though the PB signal is not recognized, a control unit that waits for a predetermined time and a control unit If there is no outgoing or incoming call after waiting for a certain period of time, a message is sent to the monitoring center, and the monitoring device and the monitoring center It is obtained by a message transmission unit for notifying that the communication has failed.
　この発明に係る通信アダプタ装置によれば、回線交換方式の監視装置に接続され、パケット交換網を介して監視センターとの間でデータを送受信する通信アダプタ装置であって、パケット処理部は、監視装置からのアナログ音声信号をパケットに変換するとともに、監視センターからのパケットをアナログ音声信号に変換し、ＰＢ信号認識部は、アナログ音声信号に含まれ、通信終了を示すＰＢ信号を認識し、制御部は、ＰＢ信号認識部でＰＢ信号を認識した場合に、通信成功と判断するとともに、ＰＢ信号を認識していないにもかかわらず、回線が切断された場合に、あらかじめ定められた一定時間待機し、メッセージ送信部は、制御部が一定時間待機した後も、発信または着信がない場合に、監視センターに対してメッセージを送信し、監視装置と監視センターとの通信が失敗したことを通知する。
　そのため、回線交換方式の監視装置に接続され、データ通信が失敗しても、他の手段で通信を行うことができる通信アダプタ装置を得ることができる。 The communication adapter device according to the present invention is a communication adapter device that is connected to a circuit switching type monitoring device and transmits / receives data to / from a monitoring center via a packet switching network, wherein the packet processing unit The analog voice signal from the apparatus is converted into a packet, and the packet from the monitoring center is converted into an analog voice signal. The PB signal recognition unit recognizes and controls the PB signal included in the analog voice signal and indicating the end of communication. When the PB signal recognition unit recognizes the PB signal, the unit determines that the communication is successful, and waits for a predetermined time when the line is disconnected even though the PB signal is not recognized. The message transmission unit transmits a message to the monitoring center when there is no outgoing or incoming call even after the control unit waits for a certain period of time. Visual device and communication with the monitoring center is notified of the failure.
Therefore, it is possible to obtain a communication adapter device that is connected to a circuit switching type monitoring device and can communicate with other means even if data communication fails.
この発明の実施の形態１に係る通信アダプタ装置が適用されたデータ通信システムを示す構成図である。It is a block diagram which shows the data communication system to which the communication adapter apparatus which concerns on Embodiment 1 of this invention was applied. この発明の実施の形態１に係る通信アダプタ装置を示すブロック構成図である。It is a block block diagram which shows the communication adapter apparatus which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る監視センターを示すブロック構成図である。It is a block block diagram which shows the monitoring center which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る監視装置と監視センターとの間の通信の流れを示すシーケンス図である。It is a sequence diagram which shows the flow of communication between the monitoring apparatus which concerns on Embodiment 1 of this invention, and a monitoring center. この発明の実施の形態１に係る通信アダプタ装置の動作を示すフローチャートである。It is a flowchart which shows operation | movement of the communication adapter apparatus which concerns on Embodiment 1 of this invention.
　以下、この発明に係る通信アダプタ装置の好適な実施の形態につき図面を用いて説明するが、各図において同一、または相当する部分については、同一符号を付して説明する。 Hereinafter, preferred embodiments of a communication adapter device according to the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts will be described with the same reference numerals.
　実施の形態１．
　図１は、この発明の実施の形態１に係る通信アダプタ装置が適用されたデータ通信システムを示す構成図である。図１において、このデータ通信システムは、監視対象１０と監視センター２０とが、パケット交換網３０を介して互いに接続されて構成されている。 Embodiment 1 FIG.
FIG. 1 is a configuration diagram showing a data communication system to which a communication adapter device according to Embodiment 1 of the present invention is applied. In FIG. 1, this data communication system is configured such that a monitoring target 10 and a monitoring center 20 are connected to each other via a packet switching network 30.
　ここで、監視対象１０は、エレベータ１のかご内に設けられたマイク２およびスピーカ３（例えば、インターホン）と、エレベータ１に接続された監視装置４と、監視装置４からの音声信号を変調し、モデム信号として出力するモデム５と、モデム５に接続された通信アダプタ装置６とを有している。 Here, the monitoring object 10 modulates a microphone 2 and a speaker 3 (for example, an interphone) provided in the car of the elevator 1, a monitoring device 4 connected to the elevator 1, and an audio signal from the monitoring device 4. , A modem 5 that outputs as a modem signal, and a communication adapter device 6 connected to the modem 5.
　監視装置４は、エレベータ１の監視データを監視センター２０に送信したり、マイク２およびスピーカ３を用いて、監視センター２０との間で音声通話したりしている。なお、モデム５と通信アダプタ装置６とは、固定電話回線７をインタフェースとして（以下、固定電話回線Ｉ／Ｆと称する）互いに接続されている。 The monitoring device 4 transmits the monitoring data of the elevator 1 to the monitoring center 20 and makes a voice call with the monitoring center 20 using the microphone 2 and the speaker 3. The modem 5 and the communication adapter device 6 are connected to each other using the fixed telephone line 7 as an interface (hereinafter referred to as a fixed telephone line I / F).
　また、監視センター２０は、パケット通信網３０と専用線８で接続されている。また、監視センター２０には、データ通信が正常に終了しなかった場合に、通信アダプタ装置６からのＳＭＳ（ｓｈｏｒｔ　ｍｅｓｓａｇｅ　ｓｅｒｖｉｃｅ）によるメッセージを受信するＳＭＳ受信部２４が設けられている。 The monitoring center 20 is connected to the packet communication network 30 by a dedicated line 8. In addition, the monitoring center 20 is provided with an SMS receiving unit 24 that receives an SMS (short message service) message from the communication adapter device 6 when the data communication is not normally completed.
　以下、この発明の実施の形態１に係る通信アダプタ装置６が有する機能について説明する。まず、通信アダプタ装置６は、固定電話回線Ｉ／Ｆからのアナログ音声信号（モデム信号）を、圧縮しない場合は６４Ｋｂｐｓのまま、圧縮する場合は３２Ｋｂｐｓ程度に圧縮してデジタル音声信号に変換し、パケット化してパケット通信網３０に送信する。 Hereinafter, functions of the communication adapter device 6 according to Embodiment 1 of the present invention will be described. First, the communication adapter device 6 converts the analog voice signal (modem signal) from the fixed telephone line I / F into a digital voice signal by compressing it to 64 Kbps when not compressed, or compressing it to about 32 Kbps when compressing, Packetized and transmitted to the packet communication network 30.
　また、通信アダプタ装置６は、パケット交換網３０からのパケットを受信して、６４Ｋｂｐｓまたは３２Ｋｂｐｓ程度のデジタル音声信号をアナログ音声信号に変換し、固定電話回線Ｉ／Ｆに送信する。 Further, the communication adapter device 6 receives a packet from the packet switching network 30, converts a digital voice signal of about 64 Kbps or 32 Kbps into an analog voice signal, and transmits the analog voice signal to the fixed telephone line I / F.
　このとき、通信アダプタ装置６は、固定電話回線Ｉ／Ｆからのアナログ音声信号、またはパケット交換網３０からのパケットを変換したアナログ音声信号に、特定パターンのＰＢ（ｐｕｓｈ　ｂｕｔｔｏｎ）信号（ＤＴＭＦ：ｄｕａｌ　ｔｏｎｅ　ｍｕｌｔｉｐｌｅｘｅｄ　ｆｒｅｑｕｅｎｃｙ）が含まれているか否かをチェックしている。なお、ＰＢ信号は、監視装置４からの発報や監視センター２０からのポーリングが正常に終了した場合に送信される信号である。 At this time, the communication adapter device 6 converts the analog voice signal from the fixed telephone line I / F or the analog voice signal obtained by converting the packet from the packet switching network 30 into a PB (push button) signal (DTMF: dual) of a specific pattern. tones (multiplexed frequency) is being checked. The PB signal is a signal that is transmitted when the notification from the monitoring device 4 and the polling from the monitoring center 20 are normally completed.
　また、通信アダプタ装置６は、発報またはポーリングが開始してから、特定パターンのＰＢ信号を検出した場合に、発報またはポーリングが成功したとみなす。 In addition, the communication adapter device 6 considers that the notification or polling is successful when the PB signal of a specific pattern is detected after the start of the notification or polling.
　一方、通信アダプタ装置６は、発報またはポーリングが開始してから、特定パターンのＰＢ信号が検出されないのに、回線が切断された場合に、発報またはポーリングが失敗したとみなすが、発報またはポーリングは、上述したようにリトライされるので、あらかじめ定められた一定時間待機する。 On the other hand, the communication adapter device 6 considers that the notification or polling has failed when the line is disconnected even though the PB signal of the specific pattern is not detected after the start of the notification or polling. Alternatively, since the polling is retried as described above, it waits for a predetermined time.
　また、通信アダプタ装置６は、一定時間待機しても、発報またはポーリングに係る発信または着信がない場合に、リトライオーバーと判断し、ＳＭＳ等のパケット交換網３０とは別の手段で送信されるメッセージを用いて、監視センター２０に発報またはポーリングが失敗したことを通知する。 Further, the communication adapter device 6 determines that a retry is over when there is no outgoing call or incoming call for polling or polling even after waiting for a certain period of time, and it is transmitted by means other than the packet switching network 30 such as SMS. The monitoring center 20 is notified that the notification or polling has failed.
　これにより、監視装置４側の電源断等で応答できないのか、または着信はするがうまく通信できないのかを容易に切り分けることができる。また、回線交換方式の監視装置４をパケット交換網３０に接続した場合に、パケット交換網３０の混雑等により発報またはポーリングが失敗したときであっても、監視センター２０に失敗を通知することができるので、コストを削減するとともに、監視品質を向上させることができる。 This makes it easy to determine whether the monitoring device 4 cannot respond due to a power failure or the like, or whether it can receive a call but cannot communicate well. In addition, when the circuit switching type monitoring device 4 is connected to the packet switching network 30, the monitoring center 20 is notified of the failure even if the notification or polling fails due to congestion of the packet switching network 30 or the like. Therefore, the cost can be reduced and the monitoring quality can be improved.
　図２は、この発明の実施の形態１に係る通信アダプタ装置を示すブロック構成図である。また、図３は、この発明の実施の形態１に係る監視センターを示すブロック構成図である。 FIG. 2 is a block configuration diagram showing the communication adapter device according to the first embodiment of the present invention. FIG. 3 is a block diagram showing the monitoring center according to Embodiment 1 of the present invention.
　図２において、通信アダプタ装置６は、電話回線処理部１１、Ａ／Ｄ変換部１２、パケット処理部１３、無線処理部１４、ＰＢ信号認識部１５、ＳＭＳ送信部１６および制御部１７を有している。ここで、制御部１７は、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）である。 2, the communication adapter device 6 includes a telephone line processing unit 11, an A / D conversion unit 12, a packet processing unit 13, a wireless processing unit 14, a PB signal recognition unit 15, an SMS transmission unit 16, and a control unit 17. ing. Here, the control unit 17 is a CPU (Central Processing Unit).
　電話回線処理部１１は、マイク２による通話の開始や監視装置４からの監視データの送信といった発信に係る動作（監視装置４からのダイヤリング）を検出した場合に、監視センター２０を呼び出すとともに、監視センター２０からの着信時にリンガー（呼出信号）を送信する。 The telephone line processing unit 11 calls the monitoring center 20 when detecting an operation related to transmission (dialing from the monitoring device 4) such as start of a call by the microphone 2 or transmission of monitoring data from the monitoring device 4; A ringer (calling signal) is transmitted when an incoming call is received from the monitoring center 20.
　また、Ａ／Ｄ変換部１２は、固定電話回線Ｉ／Ｆからのアナログ音声信号をデジタル音声信号に変換するとともに、パケット交換網３０からのパケットがパケット順に並べ替えられたデジタル音声信号をアナログ音声信号に変換する。なお、アナログ音声信号を圧縮する場合やデジタル音声信号を復元する場合には、Ａ／Ｄ変換部１２で圧縮または復号される。 The A / D converter 12 converts the analog voice signal from the fixed telephone line I / F into a digital voice signal, and converts the digital voice signal in which the packets from the packet switching network 30 are rearranged in the packet order into the analog voice. Convert to signal. When the analog audio signal is compressed or the digital audio signal is restored, the A / D conversion unit 12 compresses or decodes the analog audio signal.
　パケット処理部１３は、Ａ／Ｄ変換部１２からのデジタル音声信号をパケットに分割するとともに、パケット交換網３０からのパケットをパケット順に並べ替える。また、無線処理部１４は、パケット処理部１３からのパケットをパケット交換網３０に送信するとともに、パケット交換網３０からのパケットを受信する。 The packet processing unit 13 divides the digital audio signal from the A / D conversion unit 12 into packets and rearranges the packets from the packet switching network 30 in the order of packets. The wireless processing unit 14 transmits the packet from the packet processing unit 13 to the packet switching network 30 and receives the packet from the packet switching network 30.
　ＰＢ信号認識部１５は、固定電話回線Ｉ／Ｆからのアナログ音声信号、またはパケット交換網３０からのパケットを変換したアナログ音声信号に、特定パターンのＰＢ信号が含まれているか否かをチェックする。 The PB signal recognition unit 15 checks whether an analog voice signal from the fixed telephone line I / F or an analog voice signal obtained by converting a packet from the packet switching network 30 includes a PB signal having a specific pattern. .
　また、ＳＭＳ送信部１６は、監視装置４からの発報や監視センター２０からのポーリングが正常に終了しなかった場合に、制御部１７からの指令に応じて、監視センター２０に対してＳＭＳによりメッセージを送信する。制御部１７は、電話回線処理部１１、Ａ／Ｄ変換部１２、パケット処理部１３、無線処理部１４、ＰＢ信号認識部１５およびＳＭＳ送信部１６の動作を制御する。 In addition, the SMS transmission unit 16 sends SMS to the monitoring center 20 according to a command from the control unit 17 when the notification from the monitoring device 4 and the polling from the monitoring center 20 are not normally completed. Send a message. The control unit 17 controls operations of the telephone line processing unit 11, the A / D conversion unit 12, the packet processing unit 13, the wireless processing unit 14, the PB signal recognition unit 15, and the SMS transmission unit 16.
　図３において、監視センター２０は、パケット処理部２１、Ａ／Ｄ変換部２２、モデム通信部２３、ＳＭＳ受信部２４、制御部２５、モデム２６および遠隔監視部２７を有している。ここで、制御部２５は、ＣＰＵである。 3, the monitoring center 20 has a packet processing unit 21, an A / D conversion unit 22, a modem communication unit 23, an SMS receiving unit 24, a control unit 25, a modem 26, and a remote monitoring unit 27. Here, the control unit 25 is a CPU.
　パケット処理部２１は、パケット交換網３０からのパケットをパケット順に並べ替えるとともに、Ａ／Ｄ変換部２２からのデジタル音声信号をパケットに分割する。また、Ａ／Ｄ変換部２２は、パケット交換網３０からのパケットがパケット順に並べ替えられたデジタル音声信号をアナログ音声信号に変換するとともに、モデム通信部２３からのアナログ音声信号をデジタル音声信号に変換する。 The packet processing unit 21 rearranges the packets from the packet switching network 30 in the order of packets and divides the digital audio signal from the A / D conversion unit 22 into packets. The A / D converter 22 converts a digital audio signal in which packets from the packet switching network 30 are rearranged in the packet order into an analog audio signal, and converts the analog audio signal from the modem communication unit 23 into a digital audio signal. Convert.
　モデム通信部２３は、Ａ／Ｄ変換部２２からのアナログ音声信号をモデム２６に送信するともに、モデム２６からのモデム信号を受信する。また、ＳＭＳ受信部２４は、ＳＭＳ送信部１６からのメッセージを受信する。制御部２５は、パケット処理部２１、Ａ／Ｄ変換部２２、モデム通信部２３およびＳＭＳ受信部２４の動作を制御する。 The modem communication unit 23 transmits the analog audio signal from the A / D conversion unit 22 to the modem 26 and receives the modem signal from the modem 26. Further, the SMS receiver 24 receives a message from the SMS transmitter 16. The control unit 25 controls operations of the packet processing unit 21, the A / D conversion unit 22, the modem communication unit 23, and the SMS receiving unit 24.
　モデム２６は、モデム通信部２３からのアナログ音声信号を復調して遠隔監視部２７に送信するとともに、遠隔監視部２７からの信号を変調してモデム通信部２３に送信する。また、遠隔監視部２７は、モデム２６からの信号を受信するとともに、ポーリングの際、モデム２６に信号を送信する。 The modem 26 demodulates the analog audio signal from the modem communication unit 23 and transmits it to the remote monitoring unit 27, and modulates the signal from the remote monitoring unit 27 and transmits it to the modem communication unit 23. The remote monitoring unit 27 receives a signal from the modem 26 and transmits a signal to the modem 26 at the time of polling.
　図４は、この発明の実施の形態１に係る監視装置と監視センターとの間の通信の流れを示すシーケンス図である。図４において、上段は、監視装置４から監視センター２０への発報を示し、下段は、監視センター２０から監視装置４へのポーリングを示している。 FIG. 4 is a sequence diagram showing a flow of communication between the monitoring apparatus and the monitoring center according to Embodiment 1 of the present invention. In FIG. 4, the upper part shows notification from the monitoring apparatus 4 to the monitoring center 20, and the lower part shows polling from the monitoring center 20 to the monitoring apparatus 4.
　まず、発報時には、例えば監視装置４から、監視センター２０の番号がダイヤルされる。続いて、監視センター２０と回線が繋がったら、モデム通信が開始される。次に、監視装置４は、発報が正常に終了すると、ＰＢ信号を出力し、通信アダプタ装置６のＰＢ信号認識部１５がＰＢ信号を認識し、通信成功と判断するとともに、監視装置４は回線を切断する。 First, at the time of reporting, for example, the number of the monitoring center 20 is dialed from the monitoring device 4. Subsequently, when the monitoring center 20 and the line are connected, modem communication is started. Next, when the reporting is completed normally, the monitoring device 4 outputs a PB signal, the PB signal recognition unit 15 of the communication adapter device 6 recognizes the PB signal, determines that the communication is successful, and the monitoring device 4 Disconnect the line.
　一方、ポーリング時には、例えば監視センター２０から着信があると、監視装置４へ着信信号を送信する。続いて、監視装置４と回線が繋がったら、モデム通信が開始される。次に、監視センター２０は、ポーリングが正常に終了すると、ＰＢ信号を出力し、通信アダプタ装置６のＰＢ信号認識部１５がＰＢ信号を認識し、通信成功と判断するとともに、監視装置４は回線を切断する。 On the other hand, at the time of polling, for example, when there is an incoming call from the monitoring center 20, an incoming signal is transmitted to the monitoring device 4. Subsequently, when the monitoring device 4 is connected to the line, modem communication is started. Next, when the polling is completed normally, the monitoring center 20 outputs a PB signal, the PB signal recognition unit 15 of the communication adapter device 6 recognizes the PB signal and determines that the communication is successful. Disconnect.
　以下、図５のフローチャートを参照しながら、この発明の実施の形態１に係る通信アダプタ装置の動作について説明する。図５の動作は、例えば通信アダプタ装置６の電話回線処理部１１が監視装置４からの発報や監視センター２０からのポーリングを検出した場合に実行される。 Hereinafter, the operation of the communication adapter device according to the first embodiment of the present invention will be described with reference to the flowchart of FIG. The operation of FIG. 5 is executed when, for example, the telephone line processing unit 11 of the communication adapter device 6 detects a report from the monitoring device 4 or a polling from the monitoring center 20.
　図５において、まず、通信アダプタ装置６は、通信が発信であるか否かを判定する（ステップＳ１）。ここで、通信アダプタ装置６は、監視装置４からダイヤルされた場合に、通信が発信であると判定する。 In FIG. 5, first, the communication adapter device 6 determines whether or not the communication is outgoing (step S1). Here, the communication adapter device 6 determines that communication is outgoing when dialed from the monitoring device 4.
　ステップＳ１において、通信が発信でない（すなわち、Ｎｏ）と判定された場合には、通信アダプタ装置６は、通信が着信であるか否かを判定する（ステップＳ２）。ここで、通信アダプタ装置６は、パケット交換網３０から着信信号を受信した場合に通信が着信であると判定する。 If it is determined in step S1 that the communication is not outgoing (that is, No), the communication adapter device 6 determines whether the communication is an incoming call (step S2). Here, when the communication adapter device 6 receives an incoming signal from the packet switching network 30, it determines that the communication is incoming.
　ステップＳ２において、通信が着信でない（すなわち、Ｎｏ）と判定された場合には、通信アダプタ装置６は、ステップＳ１に移行して、再度通信が発信であるか否かを判定する。 If it is determined in step S2 that the communication is not an incoming call (that is, No), the communication adapter device 6 proceeds to step S1 and determines again whether the communication is an outgoing call.
　一方、ステップＳ２において、通信が着信である（すなわち、Ｙｅｓ）と判定された場合には、通信アダプタ装置６は、通信開始に際して、ＰＢフラグをオフする（ステップＳ３）。 On the other hand, if it is determined in step S2 that the communication is incoming (that is, Yes), the communication adapter device 6 turns off the PB flag at the start of communication (step S3).
　続いて、通信アダプタ装置６は、監視装置４と監視センター２０とのモデム通信を実行する（ステップＳ４）。なお、ここでのモデム通信は、例えば１回分のポーリングに係る複数パケットの通信を想定している。 Subsequently, the communication adapter device 6 performs modem communication between the monitoring device 4 and the monitoring center 20 (step S4). The modem communication here assumes, for example, communication of a plurality of packets related to polling for one time.
　次に、通信アダプタ装置６は、ＰＢ認識部１５で特定パターンのＰＢ信号を認識したか否かを判定する（ステップＳ５）。 Next, the communication adapter device 6 determines whether or not the PB signal of the specific pattern is recognized by the PB recognition unit 15 (step S5).
　ステップＳ５において、ＰＢ信号を認識した（すなわち、Ｙｅｓ）と判定された場合には、通信アダプタ装置６は、ＰＢフラグをオンして（ステップＳ６）、回線が切断されたか否かを判定する（ステップＳ７）。 If it is determined in step S5 that the PB signal has been recognized (that is, Yes), the communication adapter device 6 turns on the PB flag (step S6) and determines whether or not the line is disconnected (step S6). Step S7).
　一方、ステップＳ５において、ＰＢ信号を認識していない（すなわち、Ｎｏ）と判定された場合には、通信アダプタ装置６は、そのままステップＳ７に移行し、回線が切断されたか否かを判定する。 On the other hand, if it is determined in step S5 that the PB signal is not recognized (that is, No), the communication adapter device 6 proceeds to step S7 as it is and determines whether or not the line is disconnected.
　ステップＳ７において、回線が切断されていない（すなわち、Ｎｏ）と判定された場合には、ステップＳ４に移行して、再度モデム通信を実行する。 If it is determined in step S7 that the line is not disconnected (that is, No), the process proceeds to step S4 and modem communication is executed again.
　一方、ステップＳ７において、回線が切断されている（すなわち、Ｙｅｓ）と判定された場合には、通信アダプタ装置６は、ＰＢフラグがオンであるか否かを判定する（ステップＳ８）。 On the other hand, if it is determined in step S7 that the line is disconnected (that is, Yes), the communication adapter device 6 determines whether or not the PB flag is on (step S8).
　ステップＳ８において、ＰＢフラグがオンでない（すなわち、Ｎｏ）と判定された場合には、リトライしていると判断し、一定時間待機する（ステップＳ９）。ここで、一定時間とは、複数回のリトライを行う時間に、さらに余裕を持たせた時間を想定しており、例えば３～５分程度である。 If it is determined in step S8 that the PB flag is not on (that is, No), it is determined that a retry has been made, and a predetermined time is awaited (step S9). Here, the fixed time is assumed to be a time with a further allowance for the time for performing a plurality of retries, for example, about 3 to 5 minutes.
　続いて、通信アダプタ装置６は、待機時間中に、着信があったか否かを判定する（ステップＳ１０）。 Subsequently, the communication adapter device 6 determines whether there is an incoming call during the standby time (step S10).
　ステップＳ１０において、着信があった（すなわち、Ｙｅｓ）と判定された場合には、ステップＳ３に移行して、ＰＢフラグをオフし、通信を再開する。 In step S10, if it is determined that there is an incoming call (that is, Yes), the process proceeds to step S3, the PB flag is turned off, and communication is resumed.
　一方、ステップＳ１０において、着信がない（すなわち、Ｎｏ）と判定された場合には、通信アダプタ装置６は、リトライオーバーと判断し、ＳＭＳ送信部１６から監視センター２０にメッセージを送信し（ステップＳ１１）、図５の処理を終了する。 On the other hand, if it is determined in step S10 that there is no incoming call (that is, No), the communication adapter device 6 determines a retry over and transmits a message from the SMS transmission unit 16 to the monitoring center 20 (step S11). ), The process of FIG.
　また一方、ステップＳ８において、ＰＢフラグがオンである（すなわち、Ｙｅｓ）と判定された場合には、通信アダプタ装置６は、図５の処理を終了する。 On the other hand, if it is determined in step S8 that the PB flag is on (that is, Yes), the communication adapter device 6 ends the process of FIG.
　一方、ステップＳ１において、通信が発信である（すなわち、Ｙｅｓ）と判定された場合には、通信アダプタ装置６は、通信開始に際して、ＰＢフラグをオフする（ステップＳ１３）。 On the other hand, if it is determined in step S1 that the communication is outgoing (that is, Yes), the communication adapter device 6 turns off the PB flag at the start of communication (step S13).
　続いて、通信アダプタ装置６は、監視装置４と監視センター２０とのモデム通信を実行する（ステップＳ１４）。なお、ここでのモデム通信は、例えば１回分の発信に係る複数パケットの通信を想定している。 Subsequently, the communication adapter device 6 performs modem communication between the monitoring device 4 and the monitoring center 20 (step S14). Note that the modem communication here is assumed to be communication of a plurality of packets related to one-time transmission, for example.
　次に、通信アダプタ装置６は、ＰＢ認識部１５で特定パターンのＰＢ信号を認識したか否かを判定する（ステップＳ１５）。 Next, the communication adapter device 6 determines whether or not the PB signal of the specific pattern is recognized by the PB recognition unit 15 (step S15).
　ステップＳ１５において、ＰＢ信号を認識した（すなわち、Ｙｅｓ）と判定された場合には、通信アダプタ装置６は、ＰＢフラグをオンして（ステップＳ１６）、回線が切断されたか否かを判定する（ステップＳ１７）。 If it is determined in step S15 that the PB signal has been recognized (ie, Yes), the communication adapter device 6 turns on the PB flag (step S16) and determines whether or not the line has been disconnected (step S16). Step S17).
　一方、ステップＳ１５において、ＰＢ信号を認識していない（すなわち、Ｎｏ）と判定された場合には、通信アダプタ装置６は、そのままステップＳ１７に移行し、回線が切断されたか否かを判定する。 On the other hand, if it is determined in step S15 that the PB signal is not recognized (that is, No), the communication adapter device 6 proceeds to step S17 as it is and determines whether or not the line is disconnected.
　ステップＳ１７において、回線が切断されていない（すなわち、Ｎｏ）と判定された場合には、ステップＳ１４に移行して、再度モデム通信を実行する。 If it is determined in step S17 that the line has not been disconnected (that is, No), the process proceeds to step S14 and modem communication is executed again.
　一方、ステップＳ１７において、回線が切断されている（すなわち、Ｙｅｓ）と判定された場合には、通信アダプタ装置６は、ＰＢフラグがオンであるか否かを判定する（ステップＳ１８）。 On the other hand, if it is determined in step S17 that the line is disconnected (that is, Yes), the communication adapter device 6 determines whether or not the PB flag is on (step S18).
　ステップＳ１８において、ＰＢフラグがオンでない（すなわち、Ｎｏ）と判定された場合には、リトライしていると判断し、一定時間待機する（ステップＳ１９）。ここで、一定時間とは、複数回のリトライを行う時間に、さらに余裕を持たせた時間を想定しており、例えば３～５分程度である。 If it is determined in step S18 that the PB flag is not on (that is, No), it is determined that a retry has been made, and a predetermined time is awaited (step S19). Here, the fixed time is assumed to be a time with a further allowance for the time for performing a plurality of retries, for example, about 3 to 5 minutes.
　続いて、通信アダプタ装置６は、待機時間中に、発信があったか否かを判定する（ステップＳ２０）。 Subsequently, the communication adapter device 6 determines whether or not there is a call during the standby time (step S20).
　ステップＳ２０において、発信があった（すなわち、Ｙｅｓ）と判定された場合には、ステップＳ１３に移行して、ＰＢフラグをオフし、通信を再開する。 If it is determined in step S20 that a call has been made (that is, Yes), the process proceeds to step S13, the PB flag is turned off, and communication is resumed.
　一方、ステップＳ２０において、発信がない（すなわち、Ｎｏ）と判定された場合には、通信アダプタ装置６は、リトライオーバーと判断し、ＳＭＳ送信部１６から監視センター２０にメッセージを送信し（ステップＳ２１）、図５の処理を終了する。 On the other hand, if it is determined in step S20 that there is no outgoing call (that is, No), the communication adapter device 6 determines a retry over and transmits a message from the SMS transmission unit 16 to the monitoring center 20 (step S21). ), The process of FIG.
　以上のように、実施の形態１によれば、回線交換方式の監視装置に接続され、パケット交換網を介して監視センターとの間でデータを送受信する通信アダプタ装置であって、パケット処理部は、監視装置からのアナログ音声信号をパケットに変換するとともに、監視センターからのパケットをアナログ音声信号に変換し、ＰＢ信号認識部は、アナログ音声信号に含まれ、通信終了を示すＰＢ信号を認識し、制御部は、ＰＢ信号認識部でＰＢ信号を認識した場合に、通信成功と判断するとともに、ＰＢ信号を認識していないにもかかわらず、回線が切断された場合に、あらかじめ定められた一定時間待機し、メッセージ送信部は、制御部が一定時間待機した後も、発信または着信がない場合に、監視センターに対してＳＭＳによるメッセージを送信し、監視装置と監視センターとの通信が失敗したことを通知する。
　そのため、回線交換方式の監視装置に接続され、データ通信が失敗しても、他の手段（ＳＭＳ）で通信を行うことができる通信アダプタ装置を得ることができる。 As described above, according to the first embodiment, the communication adapter device is connected to the circuit switching type monitoring device and transmits / receives data to / from the monitoring center via the packet switching network. The analog voice signal from the monitoring device is converted into a packet, and the packet from the monitoring center is converted into an analog voice signal. The PB signal recognition unit recognizes the PB signal included in the analog voice signal and indicating the end of communication. When the PB signal recognition unit recognizes the PB signal, the control unit determines that the communication is successful, and when the line is disconnected even though the PB signal is not recognized, a predetermined constant is determined. The message transmission unit waits for a certain period of time, and after the control unit waits for a certain period of time, if there is no outgoing or incoming call, the message transmission unit sends an SMS message to the monitoring center. And Shin, notifying that the monitoring device and the communication with the monitoring center fails.
Therefore, it is possible to obtain a communication adapter device that is connected to a circuit switching type monitoring device and can communicate with other means (SMS) even if data communication fails.

Claims (3)

  1. 　回線交換方式の監視装置に接続され、パケット交換網を介して監視センターとの間でデータを送受信する通信アダプタ装置であって、
    　前記監視装置からのアナログ音声信号をパケットに変換するとともに、前記監視センターからのパケットをアナログ音声信号に変換するパケット処理部と、
    　前記アナログ音声信号に含まれ、通信終了を示すＰＢ信号を認識するＰＢ信号認識部と、
    　前記ＰＢ信号認識部で前記ＰＢ信号を認識した場合に、通信成功と判断するとともに、前記ＰＢ信号を認識していないにもかかわらず、回線が切断された場合に、あらかじめ定められた一定時間待機する制御部と、
    　前記制御部が前記一定時間待機した後も、発信または着信がない場合に、前記監視センターに対してメッセージを送信し、前記監視装置と前記監視センターとの通信が失敗したことを通知するメッセージ送信部と、
    　を備えた通信アダプタ装置。     A communication adapter device that is connected to a circuit switching type monitoring device and transmits / receives data to / from a monitoring center via a packet switching network,
    A packet processing unit that converts an analog voice signal from the monitoring device into a packet, and converts a packet from the monitoring center into an analog voice signal;
    A PB signal recognition unit for recognizing a PB signal included in the analog audio signal and indicating communication termination;
    When the PB signal recognition unit recognizes the PB signal, it determines that the communication is successful, and waits for a predetermined time when the line is disconnected even though the PB signal is not recognized. A control unit,
    After the control unit waits for the predetermined time, when there is no outgoing or incoming call, a message is sent to the monitoring center and a message is sent to notify that the communication between the monitoring device and the monitoring center has failed. And
    A communication adapter device comprising:
  2. 　請求項１に記載された通信アダプタ装置と、前記監視センターとからなるデータ通信システム。 A data communication system comprising the communication adapter device according to claim 1 and the monitoring center.
  3. 　回線交換方式の監視装置に接続され、パケット交換網を介して監視センターとの間でデータを送受信する通信アダプタ装置で実行されるデータ通信方法であって、
    　前記監視装置からのアナログ音声信号をパケットに変換するとともに、前記監視センターからのパケットをアナログ音声信号に変換するパケット処理ステップと、
    　前記アナログ音声信号に含まれ、通信終了を示すＰＢ信号を認識するＰＢ信号認識ステップと、
    　前記ＰＢ信号を認識していないにもかかわらず、回線が切断された場合に、あらかじめ定められた一定時間待機する待機ステップと、
    　前記一定時間待機した後も、発信または着信がない場合に、前記監視センターに対してメッセージを送信し、前記監視装置と前記監視センターとの通信が失敗したことを通知する通知ステップと、
    　を有するデータ通信方法。     A data communication method executed by a communication adapter device connected to a circuit switching type monitoring device and transmitting / receiving data to / from a monitoring center via a packet switching network,
    A packet processing step of converting an analog voice signal from the monitoring device into a packet and converting a packet from the monitoring center into an analog voice signal;
    A PB signal recognition step for recognizing a PB signal included in the analog audio signal and indicating the end of communication;
    A standby step of waiting for a predetermined time when the line is disconnected despite not recognizing the PB signal;
    A notification step of sending a message to the monitoring center and notifying that the communication between the monitoring device and the monitoring center has failed when there is no outgoing or incoming call after waiting for the predetermined time;
    A data communication method comprising:
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08293896A (en) * 1995-04-20 1996-11-05 Nec Corp Method and device for notification of completion of data communication in isdn terminal
JP2002020049A (en) * 2000-07-07 2002-01-23 Mitsubishi Electric Building Techno Service Co Ltd Remote monitoring system for elevator
JP2009212730A (en) * 2008-03-03 2009-09-17 Oriental-Security Co Ltd Device, program and method for switching telephone network, and security system provided with device for switching telephone network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007070053A (en) * 2005-09-07 2007-03-22 Toshiba Elevator Co Ltd Remotely monitoring terminal device
US20070240209A1 (en) * 2006-04-05 2007-10-11 Lewis Adam C Session persistence on a wireless network
JP5623132B2 (en) * 2010-05-21 2014-11-12 ソフトバンクモバイル株式会社 Remote monitoring system and communication adapter device used in the system
JP6080217B2 (en) * 2014-03-19 2017-02-15 日本電信電話株式会社 Traffic monitoring system, program thereof, and traffic monitoring method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08293896A (en) * 1995-04-20 1996-11-05 Nec Corp Method and device for notification of completion of data communication in isdn terminal
JP2002020049A (en) * 2000-07-07 2002-01-23 Mitsubishi Electric Building Techno Service Co Ltd Remote monitoring system for elevator
JP2009212730A (en) * 2008-03-03 2009-09-17 Oriental-Security Co Ltd Device, program and method for switching telephone network, and security system provided with device for switching telephone network

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