JP2010034731A - Notification system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably notify an alarm detected by a notification apparatus to be a generation source to an alarm receiving apparatus of a monitored destination by connecting the alarm receiving apparatus to an analog line of a terminal adaptor (TA). <P>SOLUTION: The TA 12 stores a plurality of communication terminals 11 in respective terminal ports 16 through analog lines and connects the terminal ports to digital lines. The notification apparatus 20 for transmitting an alarm connects two terminal ports 16-1, -2 as a pair, transmits a signal to be an alarm through one terminal port as a transmission line and receives a signal through the other as a reception line. When the notification apparatus 20 is in a calling state, dialing is respectively performed by two prescribed addresses which are different from each other to call and connect transmitting and receiving lines of corresponding alarm receiving apparatus to interrupt signal reception in the transmission line of the notification apparatus 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a notification system capable of accurately transmitting alarm information when an alarm device that transmits an alarm transmits and receives an analog signal to and from an alarm receiver as a monitoring destination via an IP telephone network via a terminal adapter. It is.

  A conventional notification system of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-111889 (Patent Document 1) or Japanese Patent Application Laid-Open No. 2003-152901 (Patent Document 2). Here, a reporting source terminal or an emergency reporting device serving as a reporting device is connected to a reporting destination via a terminal adapter and at least one communication terminal including another telephone.

  Referring to FIG. 1, the notification device 200 is connected to the IP telephone network 13 via the terminal adapter (hereinafter abbreviated as TA) 12 together with the communication terminal 11, and the alarm receiving device 300 is connected to the IP telephone network. 13 and a terminal adapter (TA) 14. TA12 and TA14 are the same device. With this configuration, the notification device 200, the alarm receiving device 300, and the communication terminals 11, 15 and the TAs 12, 14 are connected by analog lines. The TAs 12 and 14 are connected by a digital line through the IP telephone network 13.

  As shown in FIG. 2, TA 12 connects terminal ports 16-1 and −2 to accommodate a plurality of communication terminals 11 and the plurality of terminal ports 16-1 and −2 to IP telephone network 13. DSU (Digital Service Unit) 18. The DSU is a subscriber line terminating device, and here has an IP telephone line terminating function. Similarly, the TA 14 includes terminal ports 17-1 and −2 to accommodate the plurality of communication terminals 15 and a DSU 19 that connects the plurality of terminal ports 17-1 and −2 to the IP telephone network 13. As described above, TAs 12 and 14 have the same configuration, and those given the same name here have the same configuration and function although the reference numerals are different.

  As is well known, the terminal port includes a 2/4 conversion unit (2-wire / 4-wire conversion circuit) and a codec (analog / digital conversion circuit). The 4-line portion of the 2/4 conversion unit transmits analog signals. A speech path and a reception path are formed. For this reason, the occurrence of echoes cannot be avoided due to the crosstalk between the transmission path and the reception path and the wraparound of the voice in the hybrid transformer for 2-line / 4-line conversion.

  In order to solve the occurrence of such echoes, it has been proposed to reduce crosstalk or eliminate speech wraparound. For example, International Publication No. WO2004-110005 (Patent Document 3) is proposed as a measure for reducing crosstalk, and for example, Japanese Unexamined Patent Application Publication No. 2003-198433 (Patent Document 4) is proposed as a method for removing speech wraparound in a hybrid transformer. Yes.

  In these Patent Documents 3 to 4, in the 4-wire portion where the analog signal of the 2-wire / 4-wire conversion circuit is transmitted, the voice received in the receiving path is analyzed and the result is reflected in the transmitting path, thereby transmitting the speech. The influence on the transmission path by the voice in the reception path when the voice is transmitted to the road is reduced. In such a circuit configuration, if the echo canceller is not provided, if the level of the voice signal on the receiving path is large, the influence of the signal on the signal on the transmitting path is large. In particular, when using an analog line to send an emergency report as an alarm to an alarm receiver using an audio signal, the data information is broken by an echo and is formed into a different alarm that reaches the alarm receiver. May be taken.

Japanese Patent Laid-Open No. 2002-111889 (FIG. 1) Japanese Patent Laying-Open No. 2003-152901 (FIG. 2) WO 2004-110005 (FIG. 1) JP 2003-198433 A (FIGS. 1 and 3)

  The problem to be solved is to provide a notification system capable of reliably notifying an alarm receiving device as a monitoring destination of an alarm detected by an originating notification device when an alarm signal is transmitted through an analog line.

  The present invention includes a terminal adapter that accommodates a plurality of communication terminals by analog lines and connects to a digital line, and receives alarms detected by a reporting device that is connected to the analog line of the terminal adapter and received by a monitoring destination. The purpose is to be able to reliably notify the device.

  Therefore, according to the present invention, the notification device connects each of the first analog line serving as a transmission line for transmitting a signal and the second analog line serving as a reception line for receiving a signal. The first and second line ports of the set and the first and second line ports stored in advance using the first and second line ports when making a call The main feature is that it has a transmission control means.

  In this way, in the terminal adapter, the voice signal transmission line and the reception line are separated into separate analog lines, so that the alarm reception that is connected on the callee side in the transmission line in the reporting device Since no audio signal is received from the device, there is no obstruction caused by crosstalk or wraparound to alarm data transmitted as an audible signal from the reporting device. Similarly, information by voice transmitted from the alarm receiver is not affected by the receiving path. In particular, since there is no obstruction signal prevention circuit such as an echo canceller, there is no occurrence of a situation in which operation is not possible due to a circuit failure or the like.

  On the other hand, the alarm receiving device connected opposite to the notification device includes a third analog line serving as a reception path line for receiving signals and a fourth analog line serving as a transmission path line for transmitting signals. A pair of third and fourth line ports, and the third and fourth line ports respectively having the first and second addresses, and the first and second addresses When receiving an incoming call, there is an incoming call control means for responding by connecting the reception path line and the transmission path line of the own apparatus to the third and fourth line ports. As a result, a response from the third and fourth line ports corresponds to the transmission path line of the notification apparatus corresponding to the transmission path line of the notification apparatus and the transmission path line of the own apparatus to the reception path line of the notification apparatus, respectively. Will be connected.

  Each of the alarm receivers connected to face the notification device includes a plurality of line ports, and at least one of them can be used exclusively for alarm transmission. Therefore, since the alarm data transmission path and the dialog voice transmission path can be formed on separate lines, it is possible to accurately and easily transmit voice information such as messages as well as alarm data. It is effective to communicate to.

  In the notification system of the present invention, two analog lines are connected between a notification device and an alarm receiver connected to the notification device with two predetermined destination addresses, one line being a transmission line, and the other line. Is set for each receiving line. Therefore, in the line port of the terminal adapter that connects the analog line, a transmission voice signal is transmitted to the transmission path of the analog line set as the transmission path line, but is transmitted to the reception path of this transmission path line. There is no audio signal.

  Therefore, in the transmission path line, the audio signal sent to the transmission path is not adversely affected by crosstalk from the reception path or a sneak path signal. Furthermore, according to the present invention, it is possible to reliably transmit an alarm without providing an expensive echo canceller required for each line because it passes through the IP telephone network.

  The purpose of providing a notification system that can reliably notify the alarm received by the reporting device of the source to the alarm receiving device of the monitoring destination. By connecting, setting one line as a voice signal transmission line and the other line as a reception line, and eliminating the transmission of voice signals on the line reception path at the terminal port in the transmission line, We realized crosstalk from the reception path to the transmission path in the transmission path and the elimination of the sneak signal without deploying an anti-wraparound circuit such as an echo canceller that would interfere with alarm transmission.

  Specifically, the present invention includes a terminal adapter that accommodates a plurality of communication terminals by analog lines and connects to a digital line, and connects to the analog line of the terminal adapter to send an alarm from a notification device that generates an alarm to a monitoring destination When the alarm receiving device is notified, the two alarm ports are received by the notification device and the two port ports having two different destination addresses are received by the alarm receiver. Each device is equipped. Then, when the notification device detects one call, the two line ports automatically make calls from the two destination addresses and connect to the two line ports of the alarm receiver. Next, in accordance with a predetermined procedure, one of the two connected lines is formed as a voice signal transmission line and the other connection line is formed as a voice signal reception line.

  Each of the transmission path line and reception path line here consists of one analog line connected to each of the two terminal ports of the terminal adapter. In the case of an analog signal transmission path and reception path, or a speech signal This is the transmission path and reception path.

  In the drawings, functional blocks according to the present invention are preferentially shown, and some functions essential to the apparatus are omitted. Modifications by separating and merging the functional blocks shown in the figure, changing the procedure, and the like are free as long as they satisfy the spirit and function of the present invention, and the following description does not limit the present invention.

  A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 3 shows an embodiment in which the notification device 20 of the notification system according to the present invention is regarded as one communication terminal, and is connected to the IP telephone network 13 via a terminal adapter (hereinafter abbreviated as TA) 12 like the communication terminal 11. It is explanatory drawing which shows an example with a block. The reporting device 20 is a single communication terminal but occupies two terminal ports of the TA 12. The communication terminal 11 here is, for example, an IP telephone. The TA 12 includes terminal ports 16-1, -2 to -N and a DSU (Digital Service Unit: subscriber line terminal unit) 18. The IP telephone network 13 is a telephone network using a network including the Internet.

  As is well known, each of the terminal ports 16- of the TA 12 has a 2/4 conversion unit (2-wire / 4-line conversion circuit) and a codec (analog / digital conversion circuit), and the 4-line portion of the 2/4 conversion unit. Then, a transmission path and a reception path using analog signals are formed. Here, the DSU 18 is an IP telephone line terminating unit, which exchanges digital signals converted from analog with the terminal ports 16-1, -2,... Send and receive signals. Therefore, the TA 12 may be a known simple terminal adapter.

  As shown in the figure, the reporting device 20 is an analog terminal, and connects its own transmission path and reception path to two analog lines for a voice signal. Each of the two lines is a communication line, one of which is used only as a transmission line and the other as a reception line, and is connected to each of the terminal ports 16-1 and -2 of TA12. Accordingly, the audio signal is transmitted via the terminal port 16-1 and received via the terminal port 16-2. Similarly, the alarm receiving device which is a connection partner device also connects the transmission path and the reception path to two analog lines as will be described later, and the notification device 20 is normally connected to this connection partner device. If so, the audio signal from the receiving path is not transmitted through the line of the terminal port 16-1 while the analog alarm is being transmitted.

  Therefore, even if there is crosstalk or wraparound of the transmission signal at the receiving terminal port, it is only received as low noise when returning to the transmitting terminal port. Therefore, there is no adverse effect on the analog signal transmitted from the reporting device 20. On the other hand, the terminal port 16-2 transmits only a received signal, such as a response signal or a confirmation signal, received from the connection partner device via the reception path line to the notification device 20. The connection partner apparatus in this embodiment is an alarm receiving apparatus, and details will be described later.

  Next, the notification device 20 according to the present invention will be described with reference to FIG.

  The notification device 20 shown in FIG. 4 has an alarm sensor 1, an emergency button 2, an emergency telephone 3, etc. on one side and two telephone lines connected to the TA 12 on the other side, respectively, and an alarm detection unit 21, an outgoing call. A control unit 22, a transmission / reception line automatic transmission unit 23, an S line port 24, an R line port 25, a telephone port 26, and a 2/4 conversion unit 27 are provided.

  The alarm sensor 1 is an automatic sensor such as a fire alarm, and the emergency button 2 is a push button such as a fire alarm. The emergency telephone 3 may also be equipped with the alarm sensor 1 and the emergency button 2, but enables transmission and dialogue of alarm information when connected to the alarm receiver.

  The alarm detection unit 21 is connected to the alarm sensor 1, the emergency button 2, and the like, and when receiving a predetermined signal and detecting an alarm, the alarm detection unit 21 forms data information such as an alarm type and an alarm position in an analog signal to generate a transmission control unit 22 Notify This analog signal is based on a combination of audio frequencies used, for example, with a push button (PB) dial. The transmission control unit 22 stores in advance in the transmission / reception line automatic transmission unit 23 in both cases when alarm information is received from the alarm detection unit 21 or the telephone port 26 and when a normal call is received from the telephone port 26. The two destination addresses thus obtained are taken out, and the corresponding S line port 24 and R line port 25 are called to the telephone line, and automatic dialing is performed. For example, the address “A” is transmitted to the transmission line and the address “B” is transmitted to the reception line.

  Therefore, when the notification device 20 makes a call from the alarm detection unit 21, the transmission control unit 22 sends the address “A” via the S line port 24 to the transmission line and the address “B” via the R line port 25. To automatically dial each receiver channel. As a result, a ringing tone and then a response signal are received on each line. In this state, two telephone lines are connected to the S line port 24 and the R line port 25, respectively, as a transmission line and a reception line. The calling function by the call control unit 22 and its operation procedure may be well known, and the signal exchange for these connection controls does not limit the system. Here, it is assumed that a transmission / reception confirmation function for confirming establishment of a transmission / reception path with a connection partner functions. The specific configuration may be any known technique.

  For example, since the transmission / reception path line is in a connected state, the transmission control unit 22 transmits a confirmation signal from the transmission path line of the S line port 24 to confirm the connection, and the S line port 24 and the R line port 25 Monitor signal reception. The other party can confirm the normal transmission / reception path line connection by returning the confirmation signal to the reception path line instead of the transmission path line and accepting it only by the reception path line of the R line port 25. it can.

  In the transmission / reception line automatic transmission unit 23, two destination addresses corresponding to the S line port 24 and the R line port 25, respectively, in the present embodiment, an address “A” and an address “B” are stored in advance. This address is given to each of the two telephone line ports of the destination alarm receiver connected via the telephone network. Further, when the alarm data is included in the alarm type, the alarm receiving device can identify the alarm data and generate a different alarm on the receiving side. When a plurality of alarm receivers corresponding to the alarm type are provided, two destination addresses given to the telephone line ports of the alarm receivers are further added and stored in advance. In this embodiment, it is assumed that it is connected to one alarm receiver.

  Each of the S line port 24 and the R line port 25 is connected to a normal two-wire telephone line, and is connected to the call control unit 22 on the one hand and to the two terminal ports of the TA 12 on the other hand. Therefore, at the time when the connection control is completed and the connection of the telephone line to the connection partner is completed, the S line port 24 is a transmission path for alarm signals, the R line port 25 is a signal reception path from the connection destination, respectively. It is used limited to. As a result, as shown in FIG. 3, when an alarm signal or the like is transmitted from the S-line port 24, the 2/4 conversion unit in the terminal port 16-1 has no received signal, so the alarm signal is distorted due to crosstalk and wraparound. Does not occur.

  The telephone port 26 is connected to the emergency telephone 3, and control signals to and from the emergency telephone 3 are exchanged with the transmission control unit 22, and voice signals are exchanged with the 2/4 conversion unit 27. That is, an alarm by a predetermined button from the emergency telephone 3 is directly transmitted to the transmission control unit 22 and is connected in the same manner as the emergency button. In the case of a call from the emergency telephone 3, automatic connection is made to a predetermined alarm receiver in the same procedure, but the telephone call information is included in the alarm type.

  The 2/4 conversion unit 27 transmits and receives a voice signal to and from the telephone port 26, and the voice signal from the telephone port 26 is sent to the transmission line via the transmission control unit 22 and the S line port 24. Is received from the receiving line via the R line port 25.

  Next, the system on the alarm receiving side will be described with reference to FIGS.

  FIG. 5 shows that the alarm receiving device 30 of the notification system according to the present invention is regarded as one communication terminal, and is connected to the IP telephone network 13 via a terminal adapter (hereinafter abbreviated as TA) 14 as with the communication terminal 15. It is explanatory drawing which shows an Example in a block. The alarm receiver 30 is a single communication terminal, but occupies two terminal ports for the TA 14. TA14 may have the same configuration as TA12 described above. Accordingly, the TA 14 has terminal ports 17-1, -2, to -N and a DSU 19, and the configuration is the same as each of the terminal ports 16- and the DSU 18 described above. Further, the communication terminal 15 may be the same as the communication terminal 11.

  As is well known, each of the terminal ports 17- of the TA 14 has a 2/4 conversion unit and a codec, and a transmission path and a reception path based on analog signals are formed in the 4-line portion of the 2/4 conversion unit. Here, the DSU 19 is an IP telephone line terminator, which exchanges digital signals converted from analog with the terminal ports 17-1,-2, -N, and connects with the IP telephone network 13 on the other hand. Send and receive digital signals. Here, it is assumed that the addresses “A” and “B” are assigned in advance to the terminal ports 17-1 and-2 in order for the above-described notification device 20 to normally connect to the alarm receiver 30.

  The illustrated alarm receiver 30 is an analog terminal, and connects each of its own reception path and transmission path to two analog lines for an audio signal. Each of the two lines is a communication line, and one is used only as a reception path line and the other as a transmission path line, and is connected to each of the terminal ports 17-1 and -2 of TA14. Therefore, the audio signal in the alarm receiving device 30 is received via the terminal port 17-1, and is transmitted via the terminal port 17-2. As described above, since the reporting device that is the connection partner device connects the transmission path and the reception path to two analog lines, if the connection partner devices are normally connected to each other, While the alarm is being transmitted, there is no transmission signal from the alarm receiver 30 on the line of the terminal port 17-1. Even if there is, only the crosstalk and sneak in the voice signal from the reception path of the line of the terminal port 17-1. Therefore, crosstalk and wraparound to the transmission path in the reporting device are surely avoided.

  Next, the alarm receiver 30 according to the present invention will be described with reference to FIG.

  As shown in FIG. 6, the alarm receiver 30 has two telephone lines connected to the TA 14 on one side, an alarm indicator 4, a telephone 5, etc. connected to the other side, an R line port 31 and an S line. A port 32, an incoming call control unit 33, an alarm notification unit 34, a telephone port 35, and a 2/4 conversion unit 36;

  The alarm indicator 4 receives a notification such as a fire alarm from the alarm receiver 30 and generates an audible and visual alarm. With one alarm indicator 4, the alarm display can be switched according to the alarm type included in the received alarm data. Further, a plurality of alarm indicators 4 based on the alarm type may be provided to generate an alarm. The telephone 5 is called by an alarm type based on telephone call information, can receive an alarm based on a voice message, and can listen to it with a receiver or a speaker. You can also connect and talk with the other party's emergency telephone.

  The R line port 31 is connected to a normal two-wire telephone line, and is connected to the incoming call control unit 33 on the one hand and the terminal port of the TA 14 on the other hand. The S line port 32 is connected to a normal two-wire telephone line, and is connected to the 2/4 conversion unit 36 and the incoming call control unit 33 on the one hand, and to the terminal port of the TA 14 on the other hand. Therefore, when the connection control by the incoming call control unit 33 is completed and the connection of the telephone line to the connection partner is completed, the R line port 31 receives the alarm signal or the like, and the S line port 32 sends the signal to the connection destination. Roads are limited to each. As a result, as shown in FIG. 5, even when a voice signal or the like is sent to the S line port 32, the 2/4 conversion unit in the terminal port 17-1 is disconnected, so that crosstalk and wraparound alarms are generated. Negative effects on the signal are avoided.

  When the incoming call control unit 33 accepts an alarm, it receives a call from both the R line port 31 and the S line port 32 and responds to a normal incoming call, whereby the alarm receiving apparatus 30 and the above-described notification apparatus 20 and two telephones are received. Connected by line. Since the incoming call control unit 33 receives the alarm type from the notification device 20 as alarm data, the alarm display 4 or the telephone 5 corresponding to the alarm type is called and connected, and the alarm type is transmitted to correspond to the alarm type. The alarm to be displayed is displayed. That is, the incoming call control unit 33 sends an alarm to the alarm indicator 4 via the alarm notification unit 34 and to the telephone 5 via the telephone port 35.

  The alarm notification unit 34 connects one side to the incoming call control unit 33 and the other side to the alarm display unit 4, and when receiving an incoming call from the incoming call control unit 33, displays an audible / visual display on the alarm display unit 4 with the received alarm type. . Although one alarm indicator 4 is illustrated, the alarm notification unit 34 may distribute to a plurality of alarm indicators based on the alarm type. A plurality of alarm notification units 34 may be provided based on the alarm type. In this case, the incoming call control unit 33 selects and connects one alarm notification unit 34 based on the alarm type.

  The telephone port 35 is connected to the telephone 5 on one side and the incoming call control unit 33 and the 2/4 conversion unit 36 on the other side. The telephone 5 is called under the control of the incoming call control unit 33 and the telephone line of the telephone 5 is set to 2/4. Connect to the converter 36. The 2/4 conversion unit 36 sends the transmission signal from the telephone 5 to the S line port 32 and sends the received reception signal from the R line port 31 to the telephone 5.

  Next, with reference to FIGS. 3 to 6 together with FIG. 7, the main procedure from the generation of an alarm in the notification device 20 to the display of an alarm in the alarm reception device 30 will be described.

  First, when the alarm device 20 detects an alarm, the alarm device 20 calls two telephone lines, automatically dials by two predetermined addresses “A, B”, and makes a call setting request to the IP telephone network 13. (Procedure S1). In the IP telephone network 13, based on the call setting request, a call setting request is made on each of the two telephone lines of the alarm receiving device 30, and a ringing tone (RBT) is returned to the notification device 20 (step S2). The alarm receiver 30 that has received the call signal responds to the incoming call and sends a response signal (step S3). The IP telephone network 13 transfers the response signal to the notification device 20 through each of the two lines, then forms the two communication paths and stops sending the ringing tone (step S4). As a result, two communication paths are formed between the reporting device 20 and the alarm receiving device 30.

  Here, in order to confirm the distinction between the transmission path and the reception path with the alarm receiver 30, the notification apparatus 20 sends a confirmation signal to the transmission path line (step S5), and the alarm receiver 30 transmits it. When the signal is normally received, the response signal is sent out from the transmission line (step S6). The notification device 20 confirms the normal formation of the transmission / reception path between the two by receiving the response signal through its own reception path line. The confirmation signal in step S5 can be the alarm signal itself. In this case, if the procedure proceeds normally, it is desirable that the alarm is transmitted quickly.

  As the response signal is normally received, the notification device 20 transmits alarm data based on the detected information from the transmission line of the notification device 20 (step S7), and the alarm reception device 30 receives the call on the reception line. The normal reception is confirmed (step S8). The alarm receiving device 30 confirms the normal reception of the alarm and displays the alarm, and transmits a confirmation signal from the transmission line (step S9).

  In step S7 and subsequent steps, transmission / reception can be performed between the notification device 20 and the alarm reception device 30 using two lines. Therefore, the telephones 3 and 5 can communicate with each other.

  At the end of communication, when the notification device 20 receives a confirmation signal for normal alarm reception from the receiving side, a predetermined line disconnection process is executed (step S10). For example, the IP telephone network 13 accepts a disconnection signal from the notification device 20 and transfers it to the alarm reception device 30, and returns a release signal to the notification device 20 to complete the process and recover (step S <b> 11). The alarm receiver 30 receives the disconnection signal, returns a release signal to the IP telephone network 13, and recovers (step S12).

  In the confirmation procedure of the above-described steps S5 and S6, since the transmission path line and the reception path line are independently controlled by the call connection and the response at that time, for example, the notification device 20 has a predetermined process. It is also possible to send a confirmation signal to the transmission path line and the reception path line using the control procedure, and wait for a response on each of the transmission path line and the reception path line. In this case, the alarm receiver 30 recognizes that the confirmation signal has been received at each line port, and returns a response signal. The reporting device 20 confirms the establishment of a normal alarm transfer path by receiving a predetermined response signal within a predetermined time.

  In the case described above, when the alarm is surely notified to the predetermined alarm receiver 30 and displayed reliably, the connection is immediately restored. However, it is desirable to leave the alarm display on the alarm receiver side. In addition, it is desirable for the notification device 20 to advance the normal procedure only, and to notify the alarm reception device 30 of the transfer abnormality only when there is an abnormality or to receive the notification from the alarm reception device 30 in order to speed up the alarm notification. .

  In addition, when a notification device automatically calls an alarm and receives a normal reception confirmation response from the receiving side, the communication line connected via the IP telephone network is not connected unless a release instruction is received from the receiving side. You can also hold without disconnecting. In this case, it is possible to call the emergency telephone from the receiving side, and to allow the parties to interact with the telephone.

  Since such a configuration is adopted, in the line port of the terminal adapter to which the analog line is connected, there is no voice signal transmitted in the reception path of the analog line set as the transmission path line. The voice signal is not adversely affected by the crosstalk signal or the sneak signal from the receiving path. Therefore, it is possible to reliably transmit an alarm without providing an expensive echo canceller on each line required for passing through the IP telephone network.

  A second embodiment of the present invention will be described with reference to FIG.

  The embodiment of FIG. 8 eliminates the influence of dialogue on the transmission of an alarm when an alarm is generated while the telephones are interacting with each other between the reporting device and the alarm receiving device. That is, in addition to the two analog lines for transmitting an alarm in the above-described embodiment, two analog lines through which telephones can communicate with each other are provided.

  8 differs from the above-described embodiment in the notification device 40 and the alarm reception device 60. Since other system configurations are the same and have the same functions, the description thereof is omitted.

  The illustrated reporting device 40 includes a PB signal transmission / reception unit 41 and an audio signal transmission / reception unit 42, and occupies and connects the four terminal ports 16-1 to 16-4 of the TA 12. The PB signal transmission / reception unit 41 is connected to the two terminal ports 16-1 and -2, and the audio signal transmission / reception unit 42 is connected to the two terminal ports 16-3 and -4, respectively. The two lines are used as a transmission path and a reception path, respectively. Use.

  The illustrated alarm receiver 50 includes a PB signal transmitter / receiver 51 and an audio signal transmitter / receiver 52, and occupies and connects four terminal ports of the TA 14. The PB signal transmission / reception unit 51 is connected to two terminal ports, and the audio signal transmission / reception unit 52 is connected to two terminal ports, respectively, and the two lines are used as a transmission path and a reception path, respectively.

  The PB signal transmission / reception units 41 and 51 have functions equivalent to those of the above-described embodiments, and exchange alarm signals. The audio signal transmission / reception units 42 and 52 transmit / receive audio signals between telephones or telephone equivalent devices. Therefore, for the audio signal transmission / reception units 42 and 52, two addresses corresponding to one alarm receiver 50 are stored in advance in the notification device 40, and two addresses corresponding to one notification device 40 are also stored in the alarm receiver 50. Is stored in advance. When one call is made, the two lines are dialed with different addresses.

  Since it has such a configuration, when an alarm is transmitted as a PB signal (multi-frequency signal for push button dial) at an audible frequency, a dialog starts on the telephone, or an alarm is generated during a dialog on the telephone, etc. In addition to the transmission / reception line, the mutual communication line between the alarm and the dialog is a separate line, so it is possible to avoid the occurrence of a failure especially for the alarm. It is possible.

  That is, since each of the alarm receivers connected to face the notification device includes a plurality of sets of line ports, at least one of them can be used exclusively for alarm transmission. For this reason, the transmission path for alarm data and the transmission path for dialogue voice can be formed on separate lines. Therefore, it is possible to accurately and easily transmit voice information such as a message together with transmission of alarm data, and it is particularly effective for reliably transmitting an emergency alarm.

  In the above description, since the dial signal can be used, the alarm signal is the PB signal. However, if a specific signal is set between the notification device and the alarm receiver, the alarm signal is not limited to the PB signal. It may be a single or combined signal using other audible frequencies. Also, a plurality of types of alarm signals can be transmitted, and different alarms can be displayed depending on the type of alarm in the alarm receiver. The alarm receiver can be provided for different alarms as an alarm receiver system. For a plurality of alarm receiving devices, a plurality of sets of addresses for automatic dialing are stored in the alarm device. When a plurality of devices are provided on the notification device side, a plurality of sets of addresses for automatic dial transmission will be stored in the alarm receiving device.

  In the case of a transmission system that converts a two-line analog line forming a transmission / reception path into a four-line transmission / reception separation circuit such as a digital line, for example, two sets of two-line analog lines are respectively independent transmission path lines and reception path lines. As an analog signal, it is possible to avoid crosstalk and wraparound of analog signals from the reception path to the transmission path easily and safely, so that applications that require reliable transmission of urgent and important signals are not limited to alarms. It can be effectively applied to.

It is explanatory drawing which showed an example of the normal report system structure with the block. It is explanatory drawing which showed an example of the partial detail of the terminal adapter of FIG. 1 with the block. It is explanatory drawing which showed one Example of the alarm generation side structure of the alerting | reporting system by this invention with the block. (Example 1) It is explanatory drawing which showed in block form one Example of the detailed structure of the notification apparatus of FIG. (Example 1) It is explanatory drawing which showed one Example of the alarm receiver side structure of the alerting | reporting system by this invention with the block. (Example 1) FIG. 6 is an explanatory diagram showing in block form an example of a detailed configuration of the alarm receiver of FIG. 5. (Example 1) It is explanatory drawing which showed one Example of the operation | movement procedure of the notification system by this invention with the sequence chart. (Example 1) It is explanatory drawing which showed one Example of the alerting | reporting system structure by this invention with the block. (Example 2)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Alarm sensor 2 Emergency button 3 Emergency telephone 4 Alarm indicator 5 Telephone 11, 15 Communication terminal 12, 14 TA
13 IP telephone network 16, 16-1 to -5, 16-N, 17, 17-1 to -3, 17-N Terminal port 18, 19 DSU
20, 40 Notification device 21 Alarm detection unit 22 Transmission control unit 23 Transmission / reception line automatic transmission unit 24, 32 S line port 25, 31 R line port 26, 35 Telephone port 27, 36 2/4 conversion unit 30, 50 Alarm reception device 33 Incoming call control unit 34 Alarm notification unit 41, 51 PB signal transmitting / receiving unit 42, 52 Audio signal transmitting / receiving unit

Claims (9)

A reporting system that includes a terminal adapter that accommodates a plurality of communication terminals on an analog line and connects to the digital line, and that connects to the analog line of the terminal adapter to notify the alarm from the reporting device that issued the alarm to the monitoring device that receives the alarm In
The notification device connects a first pair of first and second analog lines that respectively connect the first analog line serving as a transmission line for transmitting signals and the second analog line serving as a reception line for receiving signals. And a call control means for making a call with each of the first and second addresses of different destinations stored in advance using the first and second line ports when making a call, A notification system characterized by having.   2. The notification system according to claim 1, wherein each of the alarm receiving devices includes a third analog line serving as a reception path line for receiving a signal and a fourth analog line serving as a transmission path line for transmitting a signal. A set of third and fourth line ports, and the third and fourth line ports have the first and second addresses, respectively, and receive calls at the first and second addresses. And receiving control means for responding by connecting each of the reception path line and the transmission path line of the own apparatus to the third and fourth line ports, and receiving the third and fourth line ports. In response to a response from the line port, a receiving path line of the own apparatus is connected to a transmission path line of the reporting apparatus, and a transmission path line of the own apparatus is connected to the receiving path line of the reporting apparatus in correspondence with each other. system.   2. The notification system according to claim 1, wherein the notification device includes a fifth analog line serving as a transmission line for transmitting a signal and a sixth analog line serving as a reception line for receiving a signal. In the case where the fifth and sixth line ports are further connected, and the outgoing call control means uses the fifth and sixth line ports at the time of outgoing call, the different destination addresses stored in advance are stored. 3. A notification system characterized in that a call is made by each of the third and fourth addresses.   4. The notification system according to claim 3, wherein each of the alarm reception devices includes a seventh analog line serving as a reception path line for receiving a signal and an eighth analog line serving as a transmission path line for transmitting a signal. A pair of seventh and eighth line ports, and the seventh and eighth line ports have the third and fourth addresses, respectively, and receive calls at the third and fourth addresses. Receiving control means for connecting and responding to the seventh and eighth line ports in correspondence with the reception path line and the transmission path line of the own device, respectively. The reception device's transmission line is connected to the notification device's transmission line and the notification device's transmission line is connected to the notification device's reception line in response to a response from 8 line ports. Notification system. A reporting system that includes a terminal adapter that accommodates a plurality of communication terminals on an analog line and connects to the digital line, and that connects to the analog line of the terminal adapter to notify the alarm from the reporting device that issued the alarm to the monitoring device that receives the alarm In
The alarm receiving device is a set of third and fourth line ports for connecting the third analog line serving as a signal transmission line and the fourth analog line serving as a signal reception line. And the third and fourth line ports have first and second addresses, respectively, and when the first and second addresses are received, the third and fourth lines An incoming call control means for connecting and responding to the port corresponding to the reception path line and the transmission path line of the own device,
In response to the responses from the third and fourth line ports, the own device's reception path line is connected to the notification apparatus's transmission path line, and the own apparatus's transmission path line is connected to the notification apparatus's reception path line. A notification system characterized by this.   6. The notification system according to claim 5, wherein each of the alarm receiving devices includes a seventh analog line serving as a reception path line for receiving a signal and an eighth analog line serving as a transmission path line for transmitting a signal. A pair of seventh and eighth line ports, and the incoming call control means further includes third and fourth addresses corresponding to the seventh and eighth line ports, When an incoming call is received at the third and fourth addresses, the reception path line and transmission path line of the own device are connected to the seventh and eighth line ports in response to each other and respond to each. A notification system characterized by this.   7. The notification system according to claim 3, wherein a communication path connecting the first and second line ports and the third and fourth line ports is provided with an alarm by a PB signal. A reporting system, wherein a voice signal is connected to a communication path connecting a signal and the fifth and sixth line ports and the seventh and eighth line ports. In a method of providing a terminal adapter for accommodating a plurality of communication terminals by analog lines and connecting to a digital line, connecting to the analog line of the terminal adapter and notifying an alarm from a notification device of a generation source to an alarm reception device of a monitoring destination One set or a plurality of sets of line ports having two sets as one set are connected to the notification device, and one set or a plurality of sets of line ports having two sets each having two different destination addresses are set. In each of the alarm receivers,
When the notification device detects one call, each of the line ports that make two sets automatically sends out the two sets of destination addresses, and the two sets of lines of the alarm receiving device. According to the procedure for connecting to each port and the predetermined procedure, one of the two connected lines is formed as a voice signal transmission line and the other connection line is used as a voice signal reception line. And a forming method.   9. The notification method according to claim 8, wherein at least one set of line ports is used exclusively for alarm notification among a plurality of sets of line ports, and when there are remaining line ports, the set of analog lines is communicated. A reporting method characterized by being used for transmitting and receiving voice signals between terminals.

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