JP5429470B2 - Telephone system, telephone terminal and server device - Google Patents

Description

  The present invention relates to a telephone system having a monitoring mode for detecting an abnormality of an intruder or the like and notifying a report destination, a telephone terminal used in the telephone system, and a server device.

  In the event of an emergency such as a fire, an intruder, or a sudden illness, an emergency call system, etc. that can promptly take an appropriate response by notifying a predetermined notification destination via a communication network such as a telephone network What is called is becoming widely used.

  For example, in Patent Document 1 described later, when an abnormality is detected by a sensor, an invention relating to an emergency notification system that notifies a predetermined notification destination of the abnormality and transmits a sound collected by a microphone to the predetermined notification destination is also disclosed. It is disclosed.

  Patent Document 2 described later relates to a telephone device that includes an abnormality detection sensor in a telephone device, and outputs a threatening sound or threatening light from a predetermined telephone device when an abnormality such as an intruder is detected through the sensor. The invention is disclosed.

JP 2006-323490 A JP 2006-245667 A

  By the way, in the case of the invention described in Patent Document 1 described above, not only abnormality detection notification but also a microphone is provided so that sound collected by the microphone is transmitted to a predetermined notification destination, and an abnormality occurs at the notification destination. It is possible to know the state of occurrence of abnormalities from the sound from the place.

  Further, by providing not only a microphone but also a camera, it is possible to transmit not only audio but also video, and it is possible to check the occurrence of abnormality based on both audio and video.

  However, in the case of the invention described in Patent Document 1, it is necessary to install a microphone and a camera in addition to a sensor for detecting an abnormality, and to drive the microphone and the camera when the abnormality is detected. For this reason, the entire system becomes large.

  In addition, in the case of the invention described in Patent Document 2, a highly reliable emergency call system that can notify a predetermined report destination when an abnormality is detected by simply providing an abnormality detection sensor in the telephone device. Can be built.

  However, in the case of the invention described in Patent Document 2, an abnormality detection sensor for constructing an emergency call system is mounted on a telephone device. Therefore, a system using this telephone device is a phone system based on intruder detection. turn into.

  In view of the above, the present invention can construct a telephone system having a highly reliable monitoring mode capable of detecting an abnormality such as an intruder and notifying a predetermined report destination without providing a dedicated sensor or the like. To do.

In order to solve the above-mentioned problem, the telephone system according to the first aspect of the present invention provides:
A telephone system including a monitoring mode, comprising a server device that controls connection between one or more telephone terminals and one or more telephone terminals and a communication device connected to a communication network,
One or more telephone terminals are
A microphone that picks up the surrounding sound in the monitoring mode;
Discrimination means for discriminating whether or not the volume level of the sound collected by the microphone exceeds a threshold;
When the determination means determines that the volume level has exceeded a threshold, a voice line is connected to the server device and a sound collected by the microphone is transmitted to the server device. Means and
The server device
Receiving means for receiving collected sound transmitted through a telephone line connected to the telephone terminal in the monitoring mode;
When the collected sound is received through the receiving means, a reception voice transmitting means for connecting a telephone line to a predetermined monitoring destination and transmitting the collected sound received through the receiving means to the predetermined monitoring destination It equipped with a door,
The discriminating means of one or more telephone terminals is characterized in that, when it is discriminated that the volume level exceeds a threshold value, the threshold value is lowered to increase discrimination sensitivity .

According to the telephone system of the first aspect of the present invention, in one or more telephone terminals, ambient sound is collected through the microphone in the monitoring mode, and whether or not the volume level of the collected sound exceeds a threshold value. Is discriminated by the discriminating means. Then, when it is determined by the determining means that the volume level of the collected sound exceeds the threshold value, the collected sound transmitting means connects the call line to the server device, and the collected sound is sent to the call line. To the server device. In addition, when determining that the volume level exceeds the threshold, the determination unit of one or more telephone terminals lowers the threshold and increases the determination sensitivity.

  In the server device, the collected sound transmitted through the connected telephone line is received by the receiving means. Then, the received voice transmission means connects a telephone line to a predetermined monitoring destination, and the collected sound from the received telephone terminal is transmitted to the predetermined monitoring destination through the telephone line.

  As a result, in a predetermined monitoring destination, the person in charge listens to the collected sound that has been transmitted, and if the sound is, for example, a sound that breaks the glass or a sound that an intruder moves, it is immediately placed in the place where the abnormality occurred. Being able to express. On the other hand, for example, in the case of sound such as thunder and car horn, it is possible to prevent the occurrence of an abnormality.

  Therefore, without providing a dedicated sensor such as a human sensor on the telephone terminal, a monitoring mode that can detect an abnormality such as an intruder and notify a predetermined reporting destination, and can prevent erroneous detection of the abnormality It is possible to build a highly reliable telephone system equipped with

  According to this invention, without providing a dedicated sensor or the like, it is possible to detect an abnormality such as an intruder and notify a predetermined report destination, and to provide a reliable monitoring mode capable of preventing erroneous detection of the abnormality. A telephone system equipped can be constructed.

It is a figure for demonstrating the whole structure of the telephone system of 1st Embodiment. It is a block diagram for demonstrating the structural example of the telephone set (IP telephone terminal) of 1st Embodiment. It is a block diagram for demonstrating the structural example of the security server 3 of 1st Embodiment. It is a figure for demonstrating the specific example of the detection aspect of the abnormal sound at the time of the monitoring mode in the telephone system of embodiment. It is a figure for demonstrating the specific example of the detection aspect of the abnormal sound at the time of the monitoring mode in the telephone system of embodiment. It is a figure for demonstrating the specific example of the detection aspect of the abnormal sound at the time of the monitoring mode in the telephone system of embodiment. It is a figure for demonstrating the specific example of the detection aspect of the abnormal sound at the time of the monitoring mode in the telephone system of embodiment. It is a figure for demonstrating the specific example of the detection aspect of the abnormal sound at the time of the monitoring mode in the telephone system of embodiment. It is a figure for demonstrating the specific example of the detection aspect of the abnormal sound at the time of the monitoring mode in the telephone system of embodiment. It is a figure for demonstrating the information managed by the security information memory 122 of the telephone (IP telephone terminal) which has the structure shown in FIG. In the telephone system of 1st Embodiment, it is a sequence diagram for demonstrating the operation | movement pattern of a telephone system at the time of detecting that it is a misinformation on the security company side. In the telephone system of 1st Embodiment, it is a sequence diagram for demonstrating the operation | movement pattern when a 1st telephone apparatus transfers. FIG. 13 is a sequence diagram following FIG. 12. It is a figure for demonstrating the example in the case of performing various notifications required in order to implement | achieve a security function using the existing command based on SIP. It is a figure for demonstrating the example in the case of performing various notifications required in order to implement | achieve a security function using the existing command based on SIP. It is a figure for demonstrating the example in the case of performing various notifications required in order to implement | achieve a security function using the existing command based on SIP. It is a figure for demonstrating the example in the case of performing various notifications required in order to implement | achieve a security function using the existing command based on SIP. It is a figure for demonstrating the example in the case of performing various notifications required in order to implement | achieve a security function using the existing command based on SIP. It is a figure for demonstrating the example in the case of performing various notifications required in order to implement | achieve a security function using the existing command based on SIP. It is a flowchart for demonstrating the process at the time of the monitoring mode performed in telephone sets AL of the telephone system of 1st Embodiment. It is a flowchart following FIG. It is a flowchart following FIG. It is a flowchart for demonstrating the process at the time of the monitoring mode performed in the security server 3 of the telephone system of 1st Embodiment. It is a flowchart following FIG. It is a block diagram for demonstrating the structure of the security server 3X of the telephone system of 2nd Embodiment. It is a figure for demonstrating the information managed by the security information memory 320 of the security server 3X. In the telephone system of 2nd Embodiment, it is a sequence diagram for demonstrating the operation | movement pattern of a telephone system at the time of detecting that it is a misinformation on the security company side. In the telephone system of 2nd Embodiment, it is a sequence diagram for demonstrating the operation | movement pattern when a 1st telephone apparatus transfers. FIG. 29 is a sequence diagram following FIG. 28. It is a flowchart for demonstrating the process at the time of the monitoring mode performed in telephone sets AL of the telephone system of 2nd Embodiment. It is a flowchart following FIG. It is a flowchart following FIG. It is a flowchart for demonstrating the process at the time of the monitoring mode performed in the security server 3X of the telephone system of 2nd Embodiment. It is a flowchart following FIG. It is a flowchart following FIG. It is a flowchart following FIG.

  Hereinafter, an embodiment of a telephone system according to the present invention and a telephone terminal and a server device constituting the system will be described with reference to the drawings. In the embodiments described below, the present invention is described by taking as an example a case where the present invention is applied to, for example, an IP telephone system provided for a company.

[First Embodiment]
[Overall configuration of telephone system of embodiment]
FIG. 1 is a diagram for explaining the overall configuration of the telephone system according to the first embodiment. As shown in FIG. 1, the telephone system of this embodiment is configured by connecting IP telephone terminals 1 (A) to 1 (L) through a LAN cable 2.

  The telephone system of this embodiment is connected to the security server 3. As will be described later in detail, the security server 3 realizes a monitoring function (security function) when absent by cooperating with each of the IP telephone terminals 1 (A) to 1 (L).

  Furthermore, since the telephone system of this embodiment is an IP telephone system, the security server 3 also has a function as a SIP (Session Initiation Protocol) server for address resolution. Therefore, in FIG. 1, the block of the security server 3 clearly states that it is SIP-compatible.

  Each of IP telephone terminals 1 (A) to 1 (L) is installed on each of a number of desks arranged in an office. Each of these IP telephone terminals 1 (A) to 1 (L) can be handled as belonging to the same extension range.

  That is, IP telephone terminals 1 (A) to 1 (L) connected to the security server 3 by LAN are telephone terminals within the extension range connected to the same main apparatus, taking a conventional button telephone system as an example. It corresponds to.

  The security server 3 is connected to an IP (Internet Protocol) network 4 as shown in FIG. In order to simplify the explanation, although not shown in FIG. 1, the security server 3 is also connected to a public network.

  As will be described in detail later, the security server 3 performs address resolution between terminals connected to the communication line. For this reason, each of the IP telephone terminals 1 (A) to 1 (L) can make a call by generating a call path (call line) via the security server 3 regardless of the extension line or the outside line. Is done.

  That is, when a call is made between IP telephone terminals connected to the LAN cable 2, the IP telephone terminal connected to the LAN cable 2 and an external telephone terminal connected to the IP network 4 or public network are also used. Even when a telephone call is made, a communication path (call line) is generated via the security server 3.

  The telephone system according to this embodiment has a monitoring function (security function) based on a change in volume level of sound collected through a hands-free microphone included in each of the IP telephone terminals 1 (A) to 1 (L). It has.

  That is, each of the IP telephone terminals 1 (A) to 1 (L) starts collecting surrounding sounds through a hands-free microphone when in the monitoring mode (security mode).

  When any of the IP telephone terminals 1 (A) to 1 (L) picks up a voice having a volume level that is larger (higher (or exceeded)) than the threshold, the IP telephone terminal makes a call with the security server 3. The road is connected, and the collected sound is also transmitted to the security server 3.

  When the security server 3 receives the collected sound from the IP telephone terminal, the security server 3 connects a call path to the predetermined monitoring destination, and the collected sound from the IP telephone terminal is transmitted to the predetermined monitoring destination (for example, a security company). To the monitoring center).

  As a result, the person in charge listened to the collected sound from the IP phone terminal at the predetermined monitoring destination, and if an abnormality actually occurred, what kind of abnormality occurred, You will be able to figure out what it is.

  And when abnormality has occurred, it is possible to take measures such as urging guards or reporting to the police. Further, when no abnormality has occurred, for example, when the abnormal sound is thundering or car horn, it is possible to take measures such as resetting the security function to return to the initial state.

  Note that the IP network 4 shown in FIG. 1 is a network in which Internet technology such as the Internet or an intranet is used, and communication is possible by packet exchange using TCP / IP (Transmission Control Protocol / Internet Protocol) or the like.

  Although not shown in FIG. 1, the public network to which the security server 3 is connected means a conventional analog or digital public communication network such as an analog telephone line, ISDN (Integrated Services Digital Network), or an optical communication network. doing.

  Further, LAN means a so-called local network, and in FIG. 1, a description has been given of a configuration in which each terminal and the like are connected by a LAN cable 2 (by wire). However, the connection is not limited to a wired connection, and may be a wireless connection or a combination thereof.

  In addition, the LAN of this embodiment can be applied to those using various protocols. For example, IEEE (Institute of Electrical Electronics Engineers) 802.3 (Ethernet (registered trademark) type LAN), IEEE 802.5 (token link type LAN), IEEE 802.11, IEEE 802.11b, IEEE 802.11, or their successor protocol Of course, a LAN using other protocols may be used. Also in the LAN of this embodiment, packetized data is transmitted and received.

  In the monitoring mode, the security server 3 does not perform normal response processing, for example, rejects incoming calls from other than the security company.

[Configuration example of telephone (IP telephone terminal)]
Next, a configuration example of the IP telephone terminal configuring the IP telephone system according to the first embodiment described with reference to FIG. 1 will be described. FIG. 2 is a block diagram for explaining a configuration example of the IP telephone terminal according to the first embodiment.

  In the IP telephone system of this embodiment, each of IP telephone terminals 1 (A) to 1 (L) will be described as having the same configuration. Therefore, hereinafter, the IP telephone terminals 1 (A) to 1 (L) are collectively referred to as the telephone 1. In the following, the description of the telephones 1 (A) to 1 (L) is used instead of the description of the IP telephone terminals 1 (A) to 1 (L).

  As shown in FIG. 2, the telephone 1 according to this embodiment mainly includes a LAN connection terminal 101, a LAN interface (hereinafter referred to as LAN I / F) 102, a packet processing unit 103, a telephone call, as a part for realizing a telephone function. Voice input / output interface (hereinafter referred to as call voice input / output I / F) 104, switch circuit 105, handset connection terminal 106, handset 107, hands-free microphone and speaker unit 108, operation input unit 109, operation input interface (hereinafter referred to as “input”) , Operation input I / F.) 110, display controller 111, display 112, and ringer 113.

  In addition, as shown in FIG. 2, the telephone set 1 of this embodiment includes a notification processing unit 121 and a security information memory 122 as a part that mainly realizes a security function.

  Further, the telephone 1 of this embodiment includes a control unit 130 that controls each unit. The control unit 130 is a microcomputer configured by connecting a CPU (Central Processing Unit) 131, a ROM (Read Only Memory) 132, and a RAM (Random Access Memory) 133 through a CPU bus 134.

  Here, the CPU 131 reads out and executes a program stored in the ROM 132, which will be described later, forms a control signal to be supplied to each part and supplies it to each part, and processes data supplied from each part. It is something to do.

  As described above, the ROM 132 stores and holds various programs executed by the CPU 131 and various data necessary for processing. The RAM 133 is mainly used as a work area, such as temporarily storing intermediate results of processing.

[Action when incoming]
The packet data transmitted through the LAN cable 2 is supplied to the LAN I / F 102 through the LAN connection terminal 101, converted into data in a format that can be processed by the own device, and then transmitted through the CPU bus. , And supplied to the packet processing unit 103.

  When the packet processing unit 103 is supplied with packet data from the LAN I / F 102, the packet processing unit 103 decomposes and extracts control data and audio data included in the packet data. The control data disassembled here is supplied to the control unit 130 and used for controlling the own device. If voice data addressed to the own device (own terminal) is included, the voice data is supplied to the call voice input / output I / F 104 through the CPU bus 134.

  When the control data disassembled and extracted by the packet processing unit 103 is an incoming message to the own device, the control unit 130 controls the ringer 113 to ring the incoming call. At the same time, the control unit 130 controls the display controller 111 to display on the display screen of the display 112 a message notifying that there is an incoming call to itself and the telephone number or extension number of the call destination.

  In the case of the telephone 1 of this embodiment, the handset 107 is attached to the main body of the telephone 1 in the same manner as a conventional telephone terminal. When the handset 107 is placed on the telephone 1, the telephone 1 is in an on-hook state, and when the handset 107 is lifted from the telephone 1, the telephone 1 is in an off-hook state.

Note that the telephone 1 of this embodiment has a so-called hands-free function. As will be described later, when the hands-free button provided in the operation input unit 109 is pressed, the switch circuit 105 is switched to the hands-free microphone and speaker unit 108 side .

  Thereby, it is possible to make a call through the hands-free microphone, the microphone 108M of the speaker unit 108, and the speaker 108S without holding the handset 107.

  That is, in the case of the telephone 1 of this embodiment, the switch circuit 105 is normally switched to the handset 107 side so that a call can be made through the handset 107.

  However, when an incoming call is received by the own device or when a call is made from the own device, the switch circuit 105 is pressed by pressing the hands-free button of the operation input unit 109 so that the switch-free circuit 105 has a hands-free microphone and speaker. Switching to the unit 108 side.

  This makes it possible to make a call through the hands-free microphone 108M and the speaker 108S without lifting the handset 107 from the telephone 1.

  As described above, the telephone 1 according to this embodiment has a hands-free function. Here, for the sake of simplicity of explanation, the operation of the telephone 1 will be described with reference to a case where a telephone call is performed using the handset 107. Will be explained.

When the user lifts the handset 107 from the main body of the telephone 1 in response to an incoming call to the own apparatus, the telephone 1 enters an off-hook state. When the control unit 130 enters an off-hook state in response to an incoming call to itself, it forms a message responding to the incoming call, packetizes it in the packet processing unit 103, and supplies it to the LAN I / F 102.

  The LAN I / F 102 converts the packet data for responding to an incoming call into packet data for transmission, sends it to the LAN cable 2 through the LAN connection terminal 101, and transmits it to the call destination terminal.

As a result, a communication path is generated between the callee and a call is started. In this case, the packetized voice data from the other party is received through the LAN connection terminal 101 and the LAN I / F 102 and supplied to the packet processing unit 103 as described above. Then, the packet processing unit 103 divides the packet, and the control data is supplied to the control unit 130 and the voice data is supplied to the call voice input / output I / F 104.

The call voice input / output I / F 104 forms an analog voice signal to be supplied from the voice data from the packet processing unit 103 to the speaker (handset) of the handset 107 of the own device. Then, the call voice input / output I / F 104 supplies the formed analog voice signal to the speaker of the handset 107 through the switch circuit 105 and the handset connection terminal 106. Thereby, the voice of the other party transmitted from the other party is emitted from the speaker (handset) of the handset 107.

On the other hand, the voice collected by the microphone (transmitter) of the handset 107 is converted into an electrical signal here and supplied to the call voice input / output I / F 104 through the handset connection terminal 106 and the switch circuit 105. The call voice input / output I / F 104 performs processing such as converting voice data from the handset 107 into a digital signal, and supplies this to the packet processing unit 103.

The packet processing unit 103 forms packet data for transmission to the other party including voice data from the call voice input / output I / F 104, and sends the packet data to the LAN cable 2 through the LAN I / F 102 and the LAN connection terminal 101. Send to the other party of communication.

  As a result, the telephone 1 can respond to an incoming call received by itself and generate a communication path with the call destination to make a call.

[Operation when calling]
Next, processing when making a call from the telephone 1 (when making a call) will be described. As described above, the telephone 1 of this embodiment has a hands-free function. Therefore, when making a call, by pressing the hands-free button, the switch circuit 105 is switched to the hands-free microphone and the speaker unit 108 side to make a call, and a call is made through the hands-free microphone and the speaker unit 108. It can also be done.

  However, in order to simplify the description, the operation of the telephone 1 will be described by taking as an example a case in which a call is performed using the handset 107.

  When making a call from the telephone set 1, first, the handset 107 is lifted from the main body of the telephone set 1 to place the telephone set 1 in an off-hook state, and the telephone number or extension number of the communication partner is input through the operation input unit 109. . The information input here is supplied to the control unit 130 through the operation input I / F 110.

  Then, the control unit 130 forms a call message and supplies it to the packet processing unit 103. The packet processing unit 103 packetizes a call message from its own device, sends it to the LAN cable 2 through the LAN I / F 102 and the LAN connection terminal 101, and transmits it to the destination of the intended communication.

After this, a communication path is generated when a response from the intended destination is returned. Thus, it is possible to make a call using a call function including the LAN connection terminal 101, the LAN I / F 102, the packet processing unit 103, the call voice input / output I / F 104, the switch circuit 105, the handset connection terminal 106, and the handset 107. To be.

  As described above, the telephone 1 can also make a call by calling a target terminal from its own device and connecting a communication line to the other party.

[Operation during security function]
Next, the operation of the telephone 1 when using the security function of the telephone system of this embodiment will be described. As will be described in detail later, when the telephone 1 receives a security start notification from the security server 3, it enters a monitoring mode (security mode).

  In the monitoring mode, the control unit 130 of the telephone 1 switches the switch circuit 105 to the hands-free microphone and speaker unit 108 side. Then, surrounding sounds are picked up through the hands-free microphone 108M, and a process of determining whether or not the volume level of the picked-up sounds exceeds a preset threshold value is started.

  That is, in the monitoring mode, the switch circuit 105 is switched, and the sound collected by the hands-free microphone 108M is sequentially supplied to the control unit 130 through the call voice input / output I / F 104.

  The control unit 130 detects the volume level of the collected sound from the hands-free microphone 108M sequentially supplied through the call voice input / output I / F 104, and determines whether the volume level exceeds a predetermined threshold. . This determination process is repeatedly performed at relatively short intervals during the monitoring mode so that a sudden change in the volume level of the collected sound can be appropriately detected.

  As will be described in detail later, when it is determined that the volume level of the collected sound from the hands-free microphone 108M exceeds the threshold, the control unit 130 determines that the own device is the first telephone Phone).

  Then, the control unit 130 of the telephone 1 controls the notification processing unit 121 to form an outgoing message for the security server 3 and supplies it to the packet processing unit 103.

  The packet processing unit 103 packetizes the outgoing message supplied thereto, sends it to the LAN cable 2 through the LAN I / F 102 and the LAN connection terminal 101, and transmits it to the security server 3.

  In response to this, the security server 3 returns an incoming call response, so that the telephone 1 connects a communication path (call line) to the security server 3. And the process which transmits the audio | voice (collected audio | voice) collected through the handsfree microphone 108M to the security server 3 through the connected call path is started.

  As will be described later, the security server 3 connects a call path (call line) with a predetermined monitoring destination such as a security company, and transmits the collected sound transmitted from the telephone 1, The person in charge can listen to the collected sound at the monitoring destination.

  The person in charge of the monitoring destination listens to the collected sound that has been sent to determine whether or not an abnormality such as an intruder has actually occurred, and what the state is when the abnormality has occurred. I can grasp it.

  In addition, the telephone 1 according to the present embodiment has other surrounding telephones that notify the security information memory 122 when the volume level of the collected sound from the hands-free microphone 108M exceeds the threshold in the security information memory 122. For example, IP address and extension number are stored.

  Then, as described above, when the volume level of the collected sound exceeds the threshold, the occurrence of abnormality is notified to other predetermined telephones in accordance with the information in the security information memory 122. The telephone that has been notified of the occurrence of an abnormality recognizes that it is a candidate telephone that is likely to become the first telephone, lowers the threshold of the volume level of the collected sound, and determines whether or not an abnormality has occurred. Increase discrimination sensitivity.

  Of course, the end of the telephone 1 itself, which is recognized as the first telephone that has notified the surrounding telephones of the occurrence of an abnormality, also lowers the threshold of the volume level of the collected sound and determines whether or not an abnormality has occurred. Try to raise.

  Then, the telephone 1 that picks up the collected voice with the highest volume level becomes a new first telephone (the telephone that is most abnormally detected), and the collected voice is sent to the security server 3. It becomes.

  In addition, the telephone 1 that has newly become the first telephone also notifies the other nearby telephones of the occurrence of an abnormality according to the information in the security information memory 122. The telephone 1 that has been the first telephone until then is made a candidate telephone upon receiving the notification of the occurrence of the abnormality.

  As described above, when the telephone 1 of this embodiment is set to the monitoring mode, it picks up surrounding sounds through the hands-free microphone 108M, detects abnormal sounds made by an intruder, and performs predetermined monitoring through the security server 3. The collected sound can be transmitted first.

  Furthermore, in the telephone set 1 of this embodiment, the telephone set 1 that picks up the picked-up sound with the highest level is the first telephone set that detects the abnormality best, and picks up the picked-up sound to the security server 3. To be a phone that transmits

[Security server configuration example]
Next, a configuration example of the security server 3 used in the IP telephone system according to the first embodiment described with reference to FIG. 1 will be described. FIG. 3 is a block diagram for explaining a configuration example of the security server 3 according to the first embodiment.

  As described above, the security server 3 of this embodiment realizes a security function by cooperating with the telephone 1 connected to its own device, and also has a function as a so-called SIP server. Connection control can also be performed.

  Hereinafter, the security server 3 of this embodiment will be described. As shown in FIG. 1 and FIG. 3, the security server 3 is connected to each of the telephones 1 (A) to 1 (L) through the LAN cable 2 and also to the IP network 4. Has been.

  The security server 3 includes a registrar server function and a proxy server function that are functions realized by a so-called SIP server. That is, the security server 3 can manage address information about a terminal device that may be called through the IP network 4 or the IP network 4 and the LAN 2 by the registrar server function.

  Further, when the security server 3 receives a SIP message from the telephone set 1 connected to itself by the proxy server function, the security server 3 uses the SIP message based on the address information managed by the registrar server function. It can be transferred to a destination having an appropriate IP address.

  The security server 3 also manages address information about the telephone 1 connected to the own machine, and makes a call (outgoing) from the telephone 1 connected to the own machine and to the telephone 1 connected to the own machine. It also has a function of relaying an incoming call (incoming call) as it is, and also realizes a function as a master unit in one IP telephone system.

  Thus, the security server 3 can also manage so-called calls. Therefore, the security server 3 of this embodiment, like the main device of the conventional key telephone system, allocates and manages communication information to each telephone 1 as a slave unit connected to the own unit, or No detailed control or the like is performed on each telephone 1 as a slave connected to the.

  As shown in FIG. 3, the security server 3 includes a call control memory 301, a call control packet generation unit 302, a packet processing unit 303, a LAN connection terminal 304, and an extension interface (hereinafter referred to as extension I / F). 305, an external line interface (hereinafter referred to as an external line I / F) 306, an IP network connection terminal 307, a timer 308, and a recording memory 309.

  The security server 3 includes a control unit 310 that controls each unit. The control unit 310 is a microcomputer configured by connecting a CPU 311, a ROM 312, and a RAM 313 through a CPU bus 314.

Here, the CPU 311 reads out and executes a program stored in the ROM 312 described later, generates a control signal to be supplied to each part and supplies it to each part, and also supplies data supplied from each part. It is something to process.

  As described above, the ROM 312 stores various programs executed by the CPU 311 and various data necessary for processing. The RAM 313 is mainly used as a work area, such as temporarily storing intermediate results of processing.

  The call control memory 301 stores address information about the telephone 1 that is connected to the IP network 4 or the LAN cable 2 and may be called through the security server 3 in order to realize the above-described registrar server function. It is to hold.

  Specifically, as will be described later, the control unit 310 of the security server 3 transmits registration requests (register requests) from various terminal devices connected thereto through the extension I / F 305 and the outside I / F 306. Is received, address information such as URI (Uniform Resource Identifier) and IP address included therein is extracted, and the extracted address information is registered in the call control memory 301, or call control is performed using the extracted address information. The registration information of the memory 301 is updated.

  In this way, the information registered and managed in the call control memory 301 is referred to, and as will be described later, the communication destination requested from the slave unit of the own unit is reliably identified, and the identified partner A function as a proxy server that transfers information (packet data) to be transmitted first is realized. The information registered and managed in the call control memory 301 is also used for discrimination of incoming calls to the telephones 1 (A) to 1 (L) connected to the own device.

  In addition, the call control packet generation unit 302 is a partner determined based on information in the call control memory 301 in response to a call request from the telephones 1 (A) to 1 (L) connected to the security server 3 via the LAN. A call packet to be transmitted first is generated and transmitted to the other party.

  In addition, the call control packet generation unit 302 performs call control in response to an incoming call request transmitted to the telephones 1 (A) to 1 (L) connected to the security server 3 through the IP network 4 or the like. An incoming call packet to be transmitted to the telephone 1 connected to the own apparatus determined based on the information in the memory 301 is generated and transmitted to the telephone 1 connected to the own apparatus.

  The packet processing unit 303 performs decomposition and generation of packet data. Specifically, a packet for calling from the telephones 1 (A) to 1 (L) connected to the LAN to the security server 3, or a telephone 1 from a terminal device connected through the IP network 4 ( A control packet such as an incoming call packet for A) to 1 (L) is subjected to packet decomposition and control data is extracted and supplied to the control unit 310.

  As described above, although not shown in FIGS. 1 and 3, the security server 3 is also connected to the public network, and the telephone 1 (A) connected to the security server 3 by LAN. Information from ˜1 (L) to the telephone terminal connected to the public network is sent to the public network after the packet processing unit 303 disassembles the packet. Further, the information to the telephones 1 (A) to 1 (L) received through the public network is packetized by the packet processing unit 303 and transmitted to the telephones 1 (A) to 1 (L) connected to the LAN. To be done.

  In addition, the timer 308 realizes a function of providing the current date, current day, and current time, and accepts a target time setting through the control unit 310, and controls this when the set time arrives. This realizes a so-called timer function in the electronic device, such as a function of notifying the unit 310.

Further, as described above, the recording memory 309 is a memory in which the collected sound transmitted from the telephone 1 that has detected an abnormal sound in the monitoring mode is recorded. The collected sound recorded in the recording memory 309 is transmitted to a predetermined monitoring destination such as a security company through the external line I / F 306 and the IP network connection terminal 307 as will be described later.

  As described above, the collected sound from the telephone 1 is buffered in the recording memory 309 and then transmitted, so that the abnormal sound detected by the telephone 1 can be reliably received and a predetermined monitoring destination can be obtained without leaking it. To be able to send to.

[Operation when calling from a telephone connected to the LAN cable 2]
The packet data of the call message from the telephones 1 (A) to 1 (L) transmitted via the LAN cable 2 is supplied to the extension I / F 305 through the LAN connection terminal 304, where It is converted into packet data in a processable format and supplied to the control unit 310.

  When the packet data from the extension I / F 305 is packet data for outgoing call, the control unit 310 supplies the packet data to the packet processing unit 303 to decompose the packet, and performs necessary control through the packet processing unit 303. Get the data.

  Then, the control unit 310 controls the call control packet generation unit 302 to generate a call packet to be transmitted to a target call destination. As described above, the call control packet generation unit 302 uses the information in the call control memory 301 to identify a target call destination and transmit the call packet to the target call destination. Is generated.

If the call packet is for a telephone terminal connected to the IP network, the call control packet generator 302 supplies the call packet to the external line I / F 306.

  The external line I / F 306 converts the packet data supplied through the CPU bus 314 into a format to be sent to the IP network 4, and sends this to the IP network 4 through the IP network connection terminal 307. Thereby, the call packet is transmitted to the target call destination.

  When a response is returned from the call destination, a communication path is generated between the call destination and the telephone terminal on the IP network 4 and the telephone 1 connected to the LAN cable 2. To make a call.

In addition, when the call packets from the telephones 1 (A) to 1 (L) connected to the LAN cable 2 are for other telephones connected to the LAN cable 2, call control packet generation is performed. The unit 302 supplies the outgoing call packet to the extension I / F 305.

  The extension I / F 305 converts the packet supplied through the CPU bus 314 into a format to be sent to the LAN cable 2 and sends it to the LAN cable 2 through the LAN connection terminal 304. Thereby, the call packet is transmitted to the target call destination.

  When a response is returned from the call destination, a communication path is generated between the call destination and a telephone is connected between the telephones connected to the LAN cable 2.

[Operation when receiving a call to a telephone connected to the LAN cable 2]
Further, packet data transmitted from the IP network 4 from the telephone terminal connected to the IP network 4 is supplied to the external line I / F 306 through the IP network connection terminal 307 and can be processed by the own device. Packet data is supplied to the control unit 310.

  When the packet data from the external line I / F 306 is an incoming call packet of the telephone connected to the own device, the control unit 310 supplies the packet data to the packet processing unit 303 to decompose the packet and perform packet processing. Necessary control data is acquired through the unit 303.

  Then, the control unit 310 controls the call control packet generation unit 302 so as to generate an incoming call packet to be transmitted to a target incoming call destination. As described above, the call control packet generation unit 302 uses the information in the call control memory 301 to identify a target call destination and transmit the call packet to the target call destination. Is generated.

Then, the call control packet generator 302 supplies the incoming packet to the extension I / F 305. The extension I / F 305 converts the packet data supplied through the CPU bus 314 into a format to be sent to the LAN cable 2 and sends it to the LAN cable 2 through the LAN connection terminal 304. As a result, the incoming packet is transmitted to the intended destination.

  When a response is returned from the call destination, a communication path is generated between the call source and the call source terminal and the destination telephone connected to the LAN cable 2. , The call will be made.

  In addition, in the external line communication between the terminal device connected to the IP network 4 and the telephones 1 (A) to 1 (L) connected to the security server 3 through the LAN, the telephone connected to the security server 3 through the LAN. Packet data is also transmitted and received in the extension communication between each other.

  Therefore, when a communication line is connected and a call is actually made, the packet processing unit 303 does not decompose or generate the packet, and the external line I / F 306 and the extension line I In / F305, the data format is adjusted and the data is sent and received as it is.

  As described above, the security server 3 of the telephone system of this embodiment is also connected to the public network and is connected not only to the terminal device connected to the IP network but also to the public network. A communication line can also be connected to a terminal device so that a telephone call can be made.

  In this case, as described above, data from the public network is packetized by the packet processing unit 303 and transmitted to the LAN cable 2, and data to be transmitted to the public network is transmitted by being decomposed into packets by the packet processing unit 303. To be done.

  As described above, the security server 3 according to this embodiment can relay messages between terminals connected to various networks to which the security server 3 is connected.

[Operation during security function]
As described above, in the telephone system of this embodiment, the security function is realized by cooperating with the security server 3 and the telephones 1 (A) to 1 (L) connected thereto. I have to.

  For example, when the control unit 310 of the security server 3 according to the present embodiment detects the occurrence of the transition event to the monitoring mode, the security server 3 enters the monitoring mode and monitors all the telephones connected to the own device. To make a transition.

  Specifically, the control unit 310 of the security server 3 controls the packet processing unit 303 to form a security start notification packet for all telephones connected to the security server 3.

  The security start notification packet formed by the packet processing unit 303 is transmitted to each of the telephones 1 (A) to 1 (L) through the extension I / F 305, the LAN connection terminal 304, and the LAN cable 2 under the control of the control unit 310. Is done.

  Thereby, each of the telephones 1 (A) to 1 (L) connected to the security server 3 also shifts to the monitoring mode, and the entire telephone system is set to the monitoring mode.

  The transition event to the monitoring mode is performed when the time set in advance in the timer 308 arrives (for example, when it is detected by the timer 308 that the time has reached 11:00 pm) or when the event is connected to the own device. This is the case when a request for shifting to the monitoring mode transmitted from any of the telephones 1 (A) to 1 (L) is received.

After the telephone system of this embodiment enters the monitoring mode, the control unit 310 of the security server 3 uses the LAN connection terminal 304 and the extension I / F 305 to sequentially supply packets that are connected to the telephone. Assume that it is a collected voice packet from 1. This determination can be made based on the information of the header portion of the packet.

  In this case, the control unit 310 supplies the packet received sequentially to the packet processing unit 303 for decomposition, extracts the audio data, and temporarily stores the extracted audio data in the recording memory 309.

Thereafter, as described above, the control unit 310 controls the call control packet generation unit 302 and the external line I / F 306 to call a predetermined monitoring destination such as a security company and connect the communication path. Then, the control unit 310 reads the audio data to be temporarily stored in the recording memory 309 in the order of recording, packetizes the packet processing unit 303, and sends the packetized data to the IP network through the external line I / F 306 and the IP network connection terminal 307. And transmitted to a predetermined monitoring destination.

  In this way, after the telephone system enters the monitoring mode, the security server 3 can receive the collected sound from the telephone 1 connected to the own machine and transmit it to a predetermined monitoring destination. I have to.

[Specific example of abnormal sound detection mode in monitoring mode]
Next, a specific example of an abnormal sound detection mode in the monitoring mode in the telephone system according to the first embodiment will be described. 4 to 9 are diagrams for explaining specific examples of the abnormal sound detection mode in the monitoring mode in the telephone system of this embodiment.

  The telephone system of this embodiment is formed by connecting the telephone 1 having the configuration described with reference to FIG. 2 and the security server 3 having the configuration described with reference to FIG. 3 as shown in FIG. Suppose that

  Each of the telephones 1 (A) to 1 (L) connected as shown in FIG. 1 is provided with 12 desks indicated by letters A to L as shown in FIG. 4A. Assume that one unit is placed on each desk in the room.

  Specifically, the telephone 1 (A) is on the desk A and the telephone 1 (B) is on the desk B. Each of the desks A to L has the telephone 1 ( A) to 1 (L) are arranged.

  Therefore, in order to simplify the description below, each of the telephone 1 (A) to the telephone 1 (L) in the IP telephone system shown in FIG. The alphabets “A” to “L” corresponding to the arrangement positions are distinguished.

  In the telephone system of this embodiment, an intruder detection notification range is provided for each telephone. For this reason, as shown in FIG. 4A, the arrangement positions of the telephones A to L arranged corresponding to the desks A to L are actually placed on a graph paper having a grid of a predetermined size as shown in FIG. 4B in advance. The intruder detection notification range is set for each telephone.

  In the case of the example shown in FIG. 4B, the grid of the graph paper is, for example, a square area with a side of 30 cm or a square area with a side of 50 cm in the room where the telephone is actually arranged. As described above, the area corresponds to an area of a predetermined size.

  In the following description, it is assumed that the grid on the graph paper indicated by the location of the telephone corresponds to a square area with a side of 50 cm in the room where the telephone is arranged.

  In the telephone system of this embodiment, as will be described in detail later, all of the telephones A to L arranged in the same room are set in a monitoring mode (security mode) by a security start notification from the security server 3. ).

  That is, as shown in FIG. 5A, each of the telephones A to L arranged in the same room does not enter the monitoring mode independently. Each of the telephones A to L arranged in the same room is set to the monitoring mode at substantially the same timing in response to a notification from the security server 3 as indicated by hatching in FIG. 5B.

  As described above, in the telephone system according to the present embodiment, after each telephone is in the monitoring mode, the telephone that detects the abnormality best is the first telephone. In addition, a telephone in a predetermined intruder detection notification range around the first telephone is set as a candidate telephone that is likely to be the first telephone next.

  Note that, based on the performance (sound collecting performance) of the hands-free microphone 108M included in each of the telephones A to L, each telephone has an intruder detection notification range. In the telephone system of this embodiment, on a graph paper such as that shown in FIG. 5, a range having four sides that are separated by three grids vertically and horizontally on the basis of the grid portion of each telephone installation position. Is the intruder detection notification range.

  In an actual room, this is a square area with a side of 3.5m, centered on the location where the telephone is installed. It is considered as a range.

  Specifically, an example where an intruder has occurred and an abnormal sound has been detected will be described. In this embodiment, as shown in FIG. 4A, the room in which the telephones A to L constituting the telephone system are arranged has a door serving as an entrance on the lower side in FIG. 4A, and the left and upper sides are walls. There is a window on the right side.

  Then, after each of the telephones A to L is set to the monitoring mode, as shown in FIG. 6, an intruder enters from the door of the room where the telephones A to L are arranged, and the sound made by the intruder is It is assumed that the nearby telephone C has been detected as a collected sound having a volume level larger than the threshold.

  In this case, as shown in FIG. 6, the telephone C surrounded by a thick line is the first telephone, and the telephone C intrudes into other telephones within a predetermined intruder detection notification range based on the own machine. A person detection notification.

  Here, the intruder detection notification range of the telephone C has four sides on the graph paper of FIG. 6 or the like, which are separated by three grids vertically and horizontally on the basis of the grid part of the installation position of the telephone C. It is a range.

  However, in FIG. 6, there are no areas where three grids can be secured on the left and lower sides of the installation position of the telephone C. For this reason, the telephone C sets the intruder detection notification range Ar1 indicated by a bold line in FIG. 7 as its own intruder detection range.

For this reason, the telephone C performs intruder detection notification to the telephone B, telephone E, and telephone F belonging to its own intruder detection notification area Ar1. The telephones B, E, and F that have received the intruder detection notification are candidate telephones that are likely to be the first telephone.

  In the telephones B, E, and F that are candidate telephones, the predetermined threshold for determining whether or not the collected sound exceeds the predetermined threshold is set to be higher than the normal threshold in the monitoring mode. The discrimination sensitivity is increased by lowering the threshold value for a low candidate phone.

  In addition, the telephone C itself as the first telephone also has a predetermined threshold for determining whether or not the collected sound exceeds a predetermined threshold, and the first telephone is lower than the normal threshold in the monitoring mode. If this happens, the sensitivity is increased by lowering the threshold.

  Here, it is assumed that the threshold value when the phone is a candidate phone and the threshold value when the phone is the first phone are the same, for example. However, it is also possible to make it different as needed.

  Further, as shown in FIG. 7, the telephone C, which is the first telephone, connects the communication path to the security server 3 and transmits the sound collected by the hands-free microphone 108M to the security server 3. To do.

  As will be described in detail later, the security server 3 connects the communication path to a predetermined monitoring destination, sequentially transmits the collected sound from the telephone C, and at the predetermined monitoring destination, the telephone C It is made possible to monitor the sound collected from the sound.

  Thereafter, as shown in FIG. 8, it is assumed that the sound generated by the intruder is detected as the collected sound having a volume level larger than the threshold value because the intruder has moved to the vicinity of the telephone F. In this case, the telephone F transmits the volume level of the collected sound to the telephone C, which is the first telephone at this time, through the extension line.

  The telephone C compares the volume level from the telephone F with the volume level of the sound collected by its own device. When the sound level of the collected sound of the own device is higher, the telephone C remains the first telephone.

  However, when the volume level from the telephone F is high, the telephone C transmits a first telephone transition notification to the telephone F through the extension line so that the first telephone is transferred from the telephone C to the telephone F. To do.

  In this case, as shown in FIG. 9, the telephone set F surrounded by a thick line is the new first telephone set. Then, the telephone F transmits an intruder detection notification to other telephones within a predetermined intruder detection notification range based on the own device.

  Here, the intruder detection notification range of the telephone F is set to four sides on the graph paper of FIG. 9 or the like, with a position separated by three grids vertically and horizontally on the basis of the grid part of the installation position of the telephone F. It is a range.

  However, on the graph paper of FIG. 9 or the like, there is no area that can secure three grids below the installation position of the telephone F. For this reason, the telephone F sets the intruder detection notification range Ar2 indicated by a thick line in FIG. 9 as its own intruder detection range.

For this reason, the telephone F performs intruder detection notification to the telephone A, telephone B, telephone C, telephone E, telephone G, telephone H, and telephone I belonging to its own intruder detection notification area Ar2. The telephone A, the telephone B, the telephone C, the telephone E, the telephone G, the telephone H, and the telephone I that have received the intruder detection notification are candidate telephones that are likely to be the first telephone.

  Then, in the telephone A, telephone B, telephone C, telephone E, telephone G, telephone H, and telephone I that are candidate telephones, the predetermined telephone number for determining whether or not the collected sound exceeds a predetermined threshold value. The threshold value is lowered to a threshold value for a candidate telephone that is lower than the normal threshold value in the monitoring mode, and the discrimination sensitivity is increased.

  In addition, the telephone F itself that has newly become the first telephone also has a predetermined threshold for determining whether or not the collected sound exceeds a predetermined threshold, which is lower than the normal threshold in the monitoring mode. Decrease the threshold to be used for a telephone and increase discrimination sensitivity.

  Note that the telephone C that was initially the first telephone is shifted from the first telephone to the candidate telephone when the intruder detection notification is received from the telephone F, for example.

  Then, as shown in FIG. 9, the telephone F that has newly become the first telephone transmits the sound collected by the hands-free microphone 108 </ b> M to the security server 3.

  In this case, the communication path is already connected between the security server 3 and the predetermined monitoring destination. For this reason, the security server 3 sequentially transmits the collected sound from the telephone F that has been newly set as the first telephone to the predetermined monitoring destination through the communication path. As a result, the collected sound from the telephone F can be monitored following the monitoring of the collected sound from the telephone C at the predetermined monitoring destination.

  As described above, in the telephone system of this embodiment, in the monitoring mode, the first telephone that is the telephone that has detected the abnormality most appropriately moves according to the movement of the intruder and the intruder Abnormal sounds to be raised are collected well and can be transmitted to a predetermined monitoring destination.

  Then, each telephone configuring the telephone system of this embodiment is in the monitoring mode, and when in the monitoring mode, whether the own machine is the first telephone, whether the own machine is a candidate telephone. The security information memory 122 manages where the first telephone is.

  Furthermore, each telephone set 1 constituting the telephone system of this embodiment has its own intruder detection notification range as described with reference to FIGS. Then, in order to send an intruder detection notification to a phone within its own intruder detection notification range, each phone has information (for example, an IP address or an extension) that identifies another phone belonging to its own intruder detection notification range. The telephone number is also managed in the security information memory 122.

[Example of management information in security information memory 122]
FIG. 10 is a diagram for explaining information managed in security information memory 122 of the telephone having the configuration shown in FIG.

  As shown in FIG. 10A, each security information memory 122 of the telephones A to L constituting the telephone system of this embodiment manages each flag information of the security flag, the first telephone flag, and the candidate telephone flag. .

  Further, as shown in FIG. 10A, in the security information memory 122, the first telephone information is managed, and intruder detection notification destination information for specifying a telephone belonging to the intruder detection notification range of each telephone is managed. Is done.

  Here, the security flag indicates whether or not the device is in the monitoring mode (security mode), and is turned on in the monitoring mode and turned off in the normal telephone mode.

  The first telephone flag indicates whether or not the own telephone is the first telephone, and is turned on when it is the first telephone, and is turned off when it is not. The candidate telephone flag indicates whether or not the own telephone is a candidate telephone, and is turned on when it is a candidate telephone, and is turned off otherwise.

The first telephone information is information indicating which telephone is the first telephone when the own telephone is a candidate telephone. The first phone information, such as IP address and extension number of the phone that has a first telephone is used.

  According to the first telephone information, when the own apparatus is a candidate telephone, and the sound of a volume level larger than the threshold is collected by the own apparatus due to the movement of an intruder, it is the transmission destination of the volume level. The first telephone set at that time can be specified.

  As a result, as described above, when the volume level is transmitted from the other telephone set, the first telephone set must be shifted to the first telephone set by comparing with the volume level of the collected voice of the own phone. It is possible to determine whether or not there is.

  The intruder notification destination information is identification information of a telephone belonging to the intruder detection notification range of the telephone, and in this embodiment, for example, an IP address or a telephone number of the telephone belonging to the intruder detection notification range. An extension number is used.

  A specific example of the security information memory 122 that manages such information will be described. FIG. 10B illustrates management information in the security information memory 122 of the telephone F when the telephone C in the state described above with reference to FIG. 7 is the first telephone and the telephones B, E, and F are candidate telephones. FIG.

  In the state shown in FIG. 7, all the telephones A to L are in the monitoring mode, and the security flag of the telephone F is set to “ON” as shown in FIG. 10B. In the state shown in FIG. 7, since the first telephone is the telephone C and the telephone F is a candidate telephone, the first telephone flag of the telephone F is “off” as shown in FIG. The flag is turned “on”.

  Then, the first telephone information indicates that the first telephone is the telephone C. In this case, as described above, the identification information of the telephone set that is the first telephone set at that time, such as an IP address, is used as the first telephone information.

  Further, as described with reference to FIG. 9, the telephone set F has an intruder detection notification range Ar2. For this reason, as shown in FIG. 10B, the IP addresses and extension numbers of the seven telephones A, B, C, E, G, H, and I belonging to the intruder detection notification range Ar2 shown in FIG. The identification information is managed as intruder detection notification destination information.

  Thus, in the security information memory 122 of each telephone, the flag information, the first telephone information, and the identification information of the telephone belonging to the intruder detection notification range for each telephone are managed, and the security function is realized in the entire telephone system. To be able to.

[Operation in monitoring mode of the telephone system]
Next, the operation in the monitoring mode (security mode) of the telephone system according to the first embodiment will be specifically described. In the following, as described with reference to FIGS. 6 to 9, a case where abnormal sound is detected by the telephone C will be described as an example.

  First, as described with reference to FIGS. 6 and 7, when the abnormal sound is detected by the telephone C, the telephone system in the case where it is detected as a false alarm by the security company that is a predetermined monitoring destination. The operation pattern will be described.

  In the telephone system according to the first embodiment, a case will be described in which the function of the timer 308 of the security server 3 automatically sets the monitoring mode (security mode) at, for example, 10:00 pm every day. .

  In addition, when the person who comes home last performs a predetermined operation through any of the telephones A to L, the monitoring mode shift notification is transmitted to the security server 3, and the security server 3 switches to the monitoring mode accordingly. It is also possible to start the transition operation.

  FIG. 11 shows an operation pattern of the telephone system in the case where an abnormal sound is detected by the telephone C in the telephone system of the first embodiment, and it is detected that the security company as a predetermined monitoring destination is a false alarm. It is a sequence diagram for demonstrating.

  Although the telephone system of the first embodiment includes telephones A to L, in order to simplify the explanation, in FIG. 11, the telephone C that first detects an abnormal sound and the neighboring telephones are detected. A description will be given focusing on B and F and the security server 3. Hereinafter, the operation of the telephone system will be described with reference to the sequence diagram of FIG.

  In this example, at 10 pm, the security server 3 transmits a security start notification to each of the telephones A to L connected to the own device, as shown in FIG. Receiving the security start notification from the security server 3, each of the telephones A to L turns on the security flag of its own security information memory 122 and enters the initial state (security initial state) of the monitoring mode.

  In each of the telephones A to L in the monitoring mode, the switch circuit 105 is switched to the hands-free microphone and the speaker unit 108 side. Then, surrounding sounds are collected through the hands-free microphone 108M, and a comparison process between the volume level of the collected sounds and a predetermined threshold value is started.

  That is, the voice (sound collected voice) collected by the hands-free microphone 108M is notified to the control unit 130 through the call voice input / output I / F 104. The control unit 130 detects the volume level of the collected sound, compares the volume level with a predetermined threshold value, and sequentially performs a process of determining whether the volume level exceeds the threshold value.

Then, as shown by the black circles in FIG. 11, it is assumed that the telephone set C collects a sound whose volume level is higher than a predetermined threshold value. In this case, the telephone C forms an intruder detection notification and transmits it to the telephones B, F, and E in the intruder detection notification area Ar1 of the own device according to the information in the security information memory 122. In FIG. 11, the description of the telephone E is omitted for the sake of simplicity.

  Then, each of the telephones B, F, and E in the intruder detection notification range Ar1 that has received the intruder detection notification turns on the candidate telephone flag in the security information memory 122 of the own machine and sets the telephone to the first telephone information. The identification information of C (IP address of telephone C, etc.) is stored and becomes a candidate telephone.

  Note that, in each of the telephone C that is the first telephone and the telephones B, F, and E that are candidate telephones, the threshold value to be compared with the volume level is lowered to increase the discrimination sensitivity.

  Further, the telephone C, which is the first telephone, sends a call to the security server 3, obtains an incoming call response from the security server 3, and communicates with the security server 3 as indicated by a double line arrow in FIG. Connect the call path to.

  Then, the telephone C transmits the sound and sound collected through its own hands-free microphone 108M to the security server 3 through the connected call path.

  As shown in FIG. 11, when the collected sound is transmitted through the communication path connected to the telephone C, the security server 3 receives this and records it in the recording memory 309 of its own device. And the security server 3 transmits to the security company which is a predetermined monitoring destination, obtains an incoming call response from the security company, and connects the communication path.

  Thereafter, as shown in FIG. 11, the security server 3 transmits the collected sound from the telephone C recorded in the recording memory 309 of the own device to the security company through a communication path connected to the security company. To do.

  The sound collected from the telephone C is recorded in the recording memory by the security server 3 and then transmitted to the security company. The voice is sent from the telephone C until the call path is connected to the security company. This is because the collected sound is transmitted to the security company without omission including the collected sound coming.

  Thereafter, the security company reproduces the collected sound transmitted from the security server 3 and listens to (monitors) the person in charge to determine whether an abnormality has occurred or whether it is a false alarm. Like that.

  Here, it was found that the collected sound from the telephone C transmitted through the security server 3 is, for example, a sound of thunder or car horn, and it is clear that no abnormality has occurred. And In this case, an intruder detection false alarm determination notification is transmitted from the security company through the connected communication path.

  The security server that has received the intruder detection misinformation determination notification forms a repartition notification and transmits it to each of the telephones A to L connected to its own device. Further, the security server 3 disconnects (releases) the communication path connected to the security company.

  On the other hand, each of the telephones A to L that has received the repartitioning notification returns the flag information and the first telephone information of its security information memory 122 to the initial state, and the telephone that has been the first telephone or the candidate telephone, The threshold used for comparing the volume levels is returned to the normal threshold in the monitoring mode.

  Accordingly, as shown in FIG. 11, each of the telephones A to L has only the security flag “ON”, the first telephone flag and the candidate telephone flag are both “OFF”, and the first telephone information is also initialized. It returns to the initial security state that has been set. In addition, the telephone C which is the first telephone disconnects (releases) the communication path connected to the security server 3.

  In this manner, the collected sound from the telephone set as the first telephone is transmitted to the security company via the security server 3 so that the person in charge at the security company can listen to it. In this way, if it can be determined that the sound is not clearly abnormal, such as thunder or car horn, it is recommended not to take a wrong response such as urging a guard or reporting to the police. it can.

  Next, as described with reference to FIGS. 6 to 9, an operation pattern when the first telephone is shifted from the telephone C to the telephone F will be described. FIGS. 12 and 13 are sequence diagrams for explaining an operation pattern when the first telephone is shifted from the telephone C to the telephone F in the telephone system according to the first embodiment.

  As described above, the telephone system according to the first embodiment includes the telephones A to L. However, in order to simplify the description, the abnormal sound is first detected in FIGS. The telephone C, the neighboring telephones B and F, and the security server 3 will be mainly described. Hereinafter, the operation of the telephone system will be described with reference to the sequence diagrams of FIGS.

  As can be seen from a comparison between FIG. 12 and FIG. 11, also in this example, the processing from the transmission of the security start notification to the transmission of collected sound to the security company is the same as the operation pattern described with reference to FIG. The same is done.

  That is, at 10 pm, the security server 3 transmits a security start notification to each of the telephones A to L connected to the own machine, as shown in FIG. Receiving the security start notification from the security server 3, each of the telephones A to L turns on the security flag of its own security information memory 122 and enters the initial state (security initial state) of the monitoring mode.

  Then, each of the telephones A to L in the monitoring mode collects surrounding sounds through the hands-free microphone 108M, and starts a comparison process between the volume level of the collected sounds and a predetermined threshold value.

Then, in FIG. 12, it is assumed that the telephone C collects a sound whose volume level is higher than a predetermined threshold as indicated by a black circle on the lower side of the telephone C. In this case, the telephone C forms an intruder detection notification and transmits it to the telephones B, F, and E in the intruder detection notification area Ar1 of the own device according to the information in the security information memory 122. In FIG. 12, the description of the telephone E is omitted for the sake of simplicity.

  Then, each of the telephones B, F, and E in the intruder detection notification range Ar1 that has received the intruder detection notification turns on the candidate telephone flag in the security information memory 122 of the own machine and sets the telephone to the first telephone information. The identification information of C (for example, the IP address of telephone C) is stored and becomes a candidate telephone.

  Furthermore, the telephone C as the first telephone makes a call to the security server 3, obtains an incoming call response from the security server 3, and communicates with the security server 3 as indicated by a double line arrow in FIG. Connect the call path to.

  Then, the telephone C transmits the collected sound under the sound collection to the security server 3 through its own hands-free microphone 108M through the connected call path.

  As shown in FIG. 12, when the collected sound is transmitted through the communication path connected to the telephone C, the security server 3 receives this and records it in the recording memory 309 of its own device. And the security server 3 transmits to the security company which is a predetermined monitoring destination, obtains an incoming call response from the security company, and connects the communication path.

  Thereafter, as shown in FIG. 12, the security server 3 transmits the collected sound from the telephone C recorded in the recording memory 309 of the own device to the security company through the communication path connected to the security company. To do.

  Thereafter, as indicated by the black circles on the lower side of the telephone F in FIG. 12, as in the case described with reference to FIG. Is picked up with a voice larger than a predetermined threshold.

  In this case, the telephone F forms a volume level notification for notifying the telephone C of the volume level based on the first telephone information in the security information memory 122 of its own device, and this is set as the telephone C that is the first telephone. Send to.

  Then, the process proceeds to the process shown in FIG. 13. The telephone set C that has received the volume level notification compares the received sound volume level of the collected voice from the telephone set F with the volume level of the collected voice in its own device. Here, in the telephone C, the volume level of the collected sound immediately after receiving the volume level from the telephone F is a comparison target.

  However, it is not limited to this. For example, in the telephone set as the first telephone set, the collected sound is stored in the memory of the own apparatus for a predetermined time. Then, the first telephone acquires the volume level of the past collected sound at the same timing as the timing at which the sound of the volume level was collected in the telephone that has transmitted the volume level.

  It is also possible to make the volume level of the past collected voice acquired in this way the target of comparison with the volume level of the collected voice transmitted from another telephone. This makes it possible to compare the volume levels of the voices collected at approximately the same timing between the telephone that has transmitted the volume level and the first telephone.

  It should be noted that the volume level of the past collected sound in the first telephone is determined based on the fact that the other telephone has collected the sound of the volume level larger than the threshold, and then the volume level of the first telephone is It may be determined in accordance with the time taken until the message is transmitted.

  Then, in the telephone C that is the first telephone in this case, it is assumed that the volume level of the collected voice of the own device is higher (larger) than the volume level from the telephone F. In this case, since it is the telephone C that has detected the abnormality most often, the first telephone remains the telephone C, and monitoring of the collected sound is continued in each telephone.

  Further, in the telephone C which is the first telephone, it is assumed that the volume level from the telephone F is higher (larger) than the volume level of the collected voice of the own apparatus. In this case, since it is the telephone F that detects the abnormality best, the telephone C, which is the first telephone at this time, forms a first telephone transition notification, which is transmitted from the volume level transmission source. To the telephone F. In addition, the telephone C stops transmitting the collected sound from the own device to the security server 3.

  The telephone F that has received the notification of transition to the first telephone sets the first telephone flag to “on”, sets the candidate telephone flag to “off”, and clears the first telephone information in the security information memory 122 of its own device. As a result, the telephone F becomes the first telephone.

  Then, as shown in FIG. 13, the telephone F that has become the first telephone makes a call to the security server 3 and obtains an incoming call response from the security server 3, and is indicated by a double-line arrow in FIG. Thus, the communication path is connected to the security server 3.

  Then, the telephone F transmits the collected sound collected through its own hands-free microphone 108M to the security server 3 through the connected call path.

  As shown in FIG. 13, when the collected sound is transmitted through the communication path connected to the telephone F, the security server 3 receives the collected voice and replaces it with the collected voice from the telephone C. Recorded sound from the telephone F is recorded in the recording memory 309 of the own device.

  Then, the security server 3 transmits the collected sound from the telephone F recorded in the recording memory of the own device to the security company through the communication path already connected to the security company that is the predetermined monitoring destination. .

  As a result, the security company can receive and listen to the collected sound from the telephone F that has become the first telephone instead of the collected sound from the telephone C. .

Furthermore, new telephone F became first phone forms an intruder detection notification, the according to the information of the security information memory 122 which, as shown in FIG. 9, intruder detection notification range of its own Ar2 The telephones A, B, C, E, G, H, and I are transmitted. In FIGS. 12 and 13, the description of the telephones other than the telephones C, B, and F is omitted for the sake of simplicity.

  Then, each of the telephones A, B, C, E, G, H, and I in the intruder detection notification area Ar2 that has received the intruder detection notification has the candidate telephone flag in its own security information memory 122 set to “ON”. Then, identification information (such as the IP address of the telephone F) of the telephone F is stored in the first telephone information and becomes a candidate telephone.

  Note that in the telephone C that was the original first telephone, the first telephone flag is set to “off”. Thereby, the transition of the first telephone from the telephone C to the telephone F is completed.

  Then, as shown in FIG. 13, after a security guard of the security company arrives, a security function stop command is input to the security server 3. This security function stop command can be issued, for example, through any of the telephones A to L, or can be directly input to the security server 3.

  Upon receiving the security function stop command, the security server 3 forms a security end notification and transmits it to each of the telephones A to L connected to its own device.

  Receiving the security end notification, each of the telephones A to L turns off all the flag information in the security information memory, clears the first telephone information, ends the monitoring mode, and returns to the operation as a normal telephone. To be done.

  As described above, in the telephone system according to this embodiment, in the monitoring mode, any of the telephones A to L connected to the security server 3 collects a sound having a volume level larger than the predetermined threshold. Can transmit the collected sound to the security company via the security server 3.

  The person in charge of the security company listens to the collected sound from the security server 3 and knows whether there is an abnormality such as an intruder, or what kind of state it is when an abnormality has occurred. Will be able to. When it is determined that an abnormality has occurred, or when it is determined that there is a high possibility that an abnormality has occurred, an appropriate response can be taken promptly.

[Use of SIP commands]
As described above, the security server 3 also has a function as a SIP server. For this reason, SIP-compliant commands are transmitted and received between each of the telephones A to L and the security server 3 or between the telephones A to L.

  For this reason, various notifications for realizing the security function can be performed using existing commands compliant with SIP. 14 to 19 illustrate an example in which various notifications necessary for realizing the security function are performed using existing commands compliant with the SIP in the telephone system according to the first embodiment. It is a figure for doing. Here, an INVITE (inbyte) command in SIP is used.

  14, as described with reference to FIG. 11 and FIG. 12, in order to set each of the telephones A to L to the monitoring mode, a security start notification formed by the security server 3 and transmitted to each of the telephones A to L is sent. , An example of forming using the INVITE command is shown.

  In FIG. 14, the “Alert-Info:” item column in the middle part of the column indicates that the INVITE command is a security start notification. Then, the INVITE command is transmitted to each of the telephones A to L, so that each of the telephones A to L that has received the command can shift its own device to the monitoring mode.

  In addition, FIG. 15 shows the intruder detection notification that the telephone set as the first telephone transmits to the telephone belonging to its own intruder detection notification range as described with reference to FIGS. An example of forming using commands is shown.

  In FIG. 15, the “Alert-Info:” item column present in the middle portion indicates that the INVITE command is an intruder detection notification. When the INVITE command is transmitted to the telephone belonging to the intruder detection notification range, each of the telephones A to L that has received the INVITE command can shift its own machine to a candidate telephone.

  Also, FIG. 16 shows that each of the telephones A to L is formed by the security server 3 in order to set each of the telephones A to L to the initial state (security initial state) of the monitoring mode as described with reference to FIG. An example in which the repartitioning notification to be transmitted to is formed using the INVITE command is shown.

  In FIG. 16, the “Alert-Info:” item column present in the middle part of the column indicates that the INVITE command is a re-partition notification. When the INVITE command is transmitted to each of the telephones A to L, each of the telephones A to L that has received the INVITE command can shift its own device to the initial state of the monitoring mode.

  In addition, as described with reference to FIG. 12, FIG. 17 shows a volume level notification that is formed by the candidate telephone and transmitted to the first telephone in order to notify the first telephone from the candidate telephone. An example in the case of forming using the INVITE command is shown.

  In FIG. 17, the “Alert-Info:” item column present in the middle portion indicates that the INVITE command is a volume level notification. By transmitting the INVITE command to the first telephone, the first telephone that has received the INVITE command can perform a comparison process with the volume level of the collected voice of the own apparatus.

  In addition, as described with reference to FIG. 13, FIG. 18 illustrates a candidate for forming a first telephone and forming a new first telephone in order to make the candidate telephone that has transmitted the volume level a new first telephone. An example in which the first telephone transition notification to be transmitted to the telephone is formed using the INVITE command is shown.

  In FIG. 18, the “Alert-Info:” item column present in the middle portion is a portion indicating that the INVITE command is the first telephone transition notification. The INVITE command is newly transmitted to the candidate telephone that should be the first telephone, so that the candidate telephone that has received the command can perform the process of setting its own machine as the new first telephone. .

  Further, in FIG. 19, as described with reference to FIG. 13, in order to end the monitoring mode in each of the telephones A to L, a security end notification formed by the security server 3 and transmitted to each of the telephones A to L is sent. , An example of forming using the INVITE command is shown.

  In FIG. 19, the “Alert-Info:” item field that exists in the middle part of the column indicates that the INVITE command is a security end notification. Then, the INVITE command is transmitted to each of the telephones A to L so that each of the telephones A to L having received the INVITE command can shift the own apparatus from the monitoring mode to the normal telephone mode. Is done.

  As described above, various notifications necessary for realizing the security function can be formed and used in the telephone system according to the first embodiment by the INVITE command conforming to the SIP.

  In the sequence diagrams of FIG. 11 to FIG. 13, it has been described that various notifications can be transmitted and received between the respective telephones. To be done through.

Further, as shown in FIGS. 14 to 19, various necessary information such as a transmission source (From :) and a transmission destination (To :) can be notified. Therefore, in the case of an intruder detection notification, the transmission source phone can properly recognized as a first phone.

  Similarly, in the case of volume level notification, it is possible to accurately know from which telephone the volume level notification is, and therefore it is possible to accurately grasp the transmission destination of the first telephone shift notification.

[Handling individual phones in the phone system]
Next, details of processing in the monitoring mode performed in each of the telephones A to L of the telephone system of the first embodiment will be described. 20 to 22 are flowcharts for explaining processing in the monitoring mode performed in the telephones A to L of the telephone system according to the first embodiment. The process shown in FIGS. 20 to 22 is a process mainly executed in the control unit 130 of the telephone set (telephone terminal 1) of this embodiment configured as described with reference to FIG.

  In the telephone according to this embodiment, the control unit 130 always receives the notification transmitted to the own device through the LAN connection terminal 101 and the LAN I / F 102 (step S101), and It is determined whether or not a notification has been received (step S102).

  If it is determined in step S102 that the notification addressed to the own device has not been received, the processing from step S101 is repeated to wait for reception of the notification addressed to the own device. When determining in step S102 that the notification addressed to the own device has been received, the control unit 130 determines whether the received notification addressed to the own device is a security start notification from the security server 3 (step S103). ).

  When it is determined in step S103 that the notification is not a security start notification, the control unit 130 executes processing corresponding to the received notification (step S104). For example, when the received notification is an incoming notification to the own device, a series of incoming processing such as ringing the ringer 113 is performed to notify that the own device has an incoming call.

  In the determination process of step S103, when it is determined that the received notification addressed to the own device is a security start notification, the control unit 130 sets the security flag of the security information memory 122 to “ON” and sets the own device to the monitoring mode. (Step S105).

  Then, the control unit 130 switches the switch circuit 105 to the hands-free microphone and the speaker unit 108 side, and starts a process of collecting surrounding sounds through the hands-free microphone 108M (step S106).

  Thereafter, the control unit 130 receives an intruder detection notification addressed to itself through the LAN connection terminal 101 and the LAN I / F 102 (step S107), and whether or not an intruder detection notification addressed to the own device has been received. Is determined (step S108).

  When it is determined in step S108 that the intruder detection notification addressed to itself is received, the control unit 130 accesses the security information memory 122 and sets the candidate telephone flag to “ON” (step S109). As a result, the own device becomes a candidate telephone. In this case, in the telephone set that is a candidate telephone set, the threshold value to be compared with the volume level of the collected voice is set lower, so that the discrimination sensitivity is increased.

  After the process of step S109 or when it is determined in the determination process of step S108 that the intruder detection notification addressed to the own device has not been received, the control unit 130 picks up sound through the microphone 108M so as to be hands-free. It is determined whether or not the sound volume level is greater than a predetermined threshold (step S110).

  That is, as described above, the collected sound collected by the hands-free microphone 108M is supplied to the control unit 130 through the call voice input / output I / F 104, where the volume level is detected and a predetermined threshold value is detected. To be compared with.

  If it is determined in step S109 that the volume level of the collected sound is equal to or lower than the predetermined threshold, no abnormality such as an intruder has occurred, and therefore the control unit 130 performs the processing from step S107. Try to repeat.

  If it is determined in step S109 that the volume level of the collected sound is greater than a predetermined threshold value, an abnormality such as an intruder may have occurred, and therefore the control unit 130 performs step S111 in FIG. Proceed to Then, the telephone control unit 130 refers to the information in the security information memory 122 of the own device, and determines whether or not the own device is a candidate phone (step S111).

  If it is determined in step S111 that the mobile phone is not a candidate telephone, the first telephone should not exist yet, so the control unit 130 accesses the security information memory 122 and sets the first telephone flag. Is turned on (step S112).

  Then, the control unit 130 refers to the security information memory 122, forms an intruder detection notification to be transmitted to the telephone in the intruder detection notification range of the own device, and sets this in the intruder detection notification range of the own device. (Step S113).

  In this step S113, the transmission destination is specified based on the information in the security information memory 122, the packet processing unit 103 is controlled to form an intruder detection notification, and this is sent to the LAN cable 2 through the LAN I / F 102 and the LAN connection terminal 101. To the target telephone.

  Thereafter, the control unit 130 transmits to the security server 3 through the LAN I / F 102 and the LAN connection terminal 101, receives an incoming response from the security server 3, and connects the communication path between itself and the security server 3. (Step S114).

  Then, the control unit 130 of the telephone sequentially transmits the sound collected through the hands-free microphone 108M to the security server 3 (step S115). In this step S115, first, the voice picked up through the handsfree microphone 108M is sequentially packetized in the packet processing unit 103 as a packet addressed to the security server 3. Then, the packetized collected voice is sent to the LAN cable 2 through the LAN I / F 102 and the LAN connection terminal 101 and transmitted to the security server 3.

  Thereafter, the control unit 130 receives a notification addressed to itself through the LAN connection terminal 101 and the LAN I / F 102 (step S116), and determines whether a notification addressed to itself is received (step S117). .

  When it is determined in step S117 that the notification addressed to the own device has been received, the control unit 130 proceeds to the processing in step S118 in FIG. 22, and whether the received notification is a volume level notification addressed to the own device. Is determined (step S118).

  When it is determined in step S118 that the received notification is a volume level notification addressed to the own device, the control unit 130 collects the sound volume level included in the received volume level notification and the own device. A process of comparing with the volume level of the existing voice is performed (step S119).

  Then, the control unit 130 determines whether or not the volume level included in the received volume level notification is higher and the possibility that the intruder has moved is high (step S120). When it is determined in step S120 that the intruder is likely to have moved, the control unit 130 forms a first telephone transition notification to be transmitted to the volume level notification source, and the notification is sent to the notification source. (Step S121).

  In step S 121, the first telephone transition notification is formed by the control unit 130 controlling packet processing, and the formed first telephone transition notification is transmitted to the notification source telephone through the LAN I / F 102 and the LAN connection terminal 101. Sent to.

  Then, the control unit 130 of the telephone that has finished transmitting the first telephone transition notification sets the first telephone flag in the security information memory 122 of the own machine to “OFF” (step S122). Then, the processing from step S107 shown in FIG. 20 is repeated.

  In the determination process of step S120, when it is determined that the volume level of the voice being picked up by the own device is higher than the received volume level, and the possibility that the intruder has moved is low, the control unit 130. Performs the processing from step S107 shown in FIG. That is, in this case, the first telephone transition notification is not transmitted, and the telephone is left as the first telephone.

  If it is determined in step S118 that the received notification is not a volume level notification addressed to the own device, control unit 130 determines whether the received notification is a re-partition notification addressed to the own device. (Step S123).

  In the determination process of step S123, when determining that the received notification is a re-partitioning notification addressed to the own device, the control unit 130 sets the first telephone flag in the security information memory 122 of the own device to “OFF” (step S122). Thereafter, the processing from step S107 shown in FIG. 20 is repeated.

  Further, when it is determined in step S123 that the received notification is not a re-partitioning notification addressed to the own device, the control unit 130 determines that a security end notification has been received, and stores the security information memory 122 of the own device. The flag information and the first telephone information are initialized (step S124), and the operation returns to the normal telephone operation (step S125). Thereafter, the processing from step S101 shown in FIG. 20 is repeated.

  Further, in the determination processing of step S111 shown in FIG. 21, when it is determined that the own device is a candidate telephone, the control unit 130 forms a volume level notification addressed to the first telephone, which is transmitted to the first telephone. (Step S126).

  In this step S126, the control unit 130 controls the packet processing unit 103 to form a volume level notification including the volume level of the collected voice of its own device, which is sent to the LAN through the LAN I / F 102 and the LAN connection terminal 101. This is a process of sending to the cable 2 and sending to the first telephone.

  After that, the control unit 130 receives the first telephone transition notification addressed to itself through the LAN connection terminal 101 and the LAN I / F 102 (step S127). It is determined whether or not (step S128).

  If it is determined in step S128 that the notification of transition to the first telephone addressed to the own device has not been received, control unit 130 repeats the processing from step S107 shown in FIG. In other words, the candidate telephone has picked up the sound having a volume level larger than the threshold value, but it is not so much as to shift the first telephone.

  If it is determined in step S128 that the first phone transition notification addressed to the own device has been received, the control unit 130 first accesses the security information memory 122 of the own device and sets the first phone flag to “ At the same time, the candidate telephone flag is turned off and the first telephone information is cleared (step S129).

  Then, the control unit 130 of the telephone makes a call to the security server 3 through the LAN I / F 102 and the LAN connection terminal 101, receives an incoming response from the security server 3, and connects the communication path between itself and the security server 3. Are connected (step S130).

  Then, the control unit 130 of the telephone sequentially transmits the sound collected through the hands-free microphone 108M to the security server 3 (step S131). In 131, first, the packet processing unit 103 sequentially processes the voice collected through the handsfree microphone 108 </ b> M as a packet addressed to the security server 3. Then, the packetized collected voice is sent to the LAN cable 2 through the LAN I / F 102 and the LAN connection terminal 101 and transmitted to the security server 3.

  Thereafter, the control unit 130 refers to the security information memory 122, forms an intruder detection notification to be transmitted to the telephone in the intruder detection notification range of the own device, and converts the intruder detection notification to the intruder detection notification range of the own device. Transmit to the telephone (step S132). Thereafter, the processing from step S107 shown in FIG. 20 is repeated.

  As described above, the processing shown in FIGS. 20 to 22 is executed in each of the telephones A to L constituting the telephone system of the first embodiment. When the monitoring mode is set, surrounding sounds are collected through the hands-free microphone 108M, and the collected sounds can be transmitted to the security server 3 when the volume level of the collected sounds is larger than the threshold value. .

  In addition, the telephone that has detected an abnormality such as an intruder makes an intruder detection notification to a telephone in a predetermined intruder detection notification range. As a result, the abnormal sound detection sensitivity is increased as a candidate telephone having a high possibility of becoming the first telephone, and the abnormal sound can be collected with high accuracy.

  In addition, since the telephone that detects the abnormal sound best can be the first telephone that transmits the collected sound to the security server 3, the abnormal sound is most appropriately detected in the monitoring mode. The collected sound of the telephone that is collecting sound can be transmitted to the security server 3.

[Telephone system security server processing]
Next, details of processing in the monitoring mode performed in the security server 3 of the telephone system according to the first embodiment will be described. FIGS. 23 and 24 are flowcharts for explaining processing in the monitoring mode performed in the security server 3 of the telephone system according to the first embodiment. The processing shown in FIGS. 23 and 24 is processing executed mainly in the control unit 310 of the security server 3 of this embodiment configured as described with reference to FIG.

  Then, the control unit 310 of the security server 3 according to this embodiment determines whether or not a security start event that triggers the transition to the monitoring mode (security mode) is detected in the normal time that is not the monitoring mode. (Step S201).

  Here, the security start event is, for example, the arrival of the transition time to the monitoring mode set in the timer 308 or the reception of the request for transition to the monitoring mode (transition notification) transmitted via the telephone.

  When determining in step S201 that the security start event has not been detected, the control unit 310 repeats the determination processing from step S201. If it is determined in step S201 that the security start event has been detected, the control unit 310 forms a security start notification and transmits it to each of the telephones A to L connected to the own device ( Step S202).

  Specifically, in step S202, the control unit 310 controls the packet processing unit 303 to form a security start notification to each telephone and sends it to the LAN cable 2 through the extension I / F 305 and the LAN connection terminal 304. Transmit to telephones A-L.

  Thereafter, the control unit 310 of the security server 3 receives a call from the telephone that has started the security function (enters the monitoring mode) through the LAN connection terminal 304 and the extension I / F 305 (step S203). .

  Then, control unit 310 determines whether or not a call from the telephone set in the monitoring mode has been received (step S204). If it is determined in step S204 that the call has not been received, the processing from step S203 is repeated.

  If it is determined in step S204 that the call from the telephone set in the monitoring mode has been received, control unit 310 returns an incoming call response to the telephone (step S205).

  Then, the control unit 310 connects the call path to the caller telephone, receives the packetized sound collected from the telephone transmitted through the call path, A process of recording in the recording memory is started (step S206).

  Specifically, in step S206, the control unit 310 receives the packetized sound collected from the telephone transmitted through the connected speech path through the LAN connection terminal 304 and the extension I / F 305.

  Then, the received packetized collected sound is subjected to packet decomposition in the packet processing unit 303 to extract the collected sound (voice data) and sequentially record it in the recording memory 309 of the own device. It will be.

After that, the control unit 310 transmits to the security company that is a predetermined monitoring destination through the external line I / F 306 and the IP network connection terminal 307, receives an incoming call response from the security company, A call path is connected between them (step S207).

  Then, the control unit 310 starts a process of transmitting the collected sound from the telephone recorded in the recording memory 309 of the own device to the security company through a communication path connected to the security company (step S208).

Specifically, in step S208, the control unit 310 reads the collected sound from the telephone recorded in the recording memory 309 of the own device, and packetizes it in the packet processing unit 303. The packetized collected sound is transmitted to the communication path connected to the security company through the external line I / F 306 and the IP network connection terminal 307, and transmitted to the security company.

  Thereafter, the control unit 310 proceeds to the process of step S209 in FIG. 24, and receives a false alarm determination notification from the security company through the IP network connection terminal 307 and the external line I / F 306 (step S209).

  And the control part 310 judges whether the misinformation discrimination notification from the security company was received (step S210). When it is determined in step S210 that a false alarm determination notification has been received, control unit 310 forms a repartition notification and transmits it to each of all telephones A to L connected to the own device ( Step S211).

  Specifically, in step S211, the control unit 310 controls the packet processing unit 303 to form a repartitioning notification, which is transmitted through the extension I / F 305 and the LAN connection terminal 304 to all the telephones A to A connected to the own device. To each of L. After the process of step S211, the control unit 310 repeats the process from step S203 shown in FIG.

  If it is determined in step S210 that the false alarm determination notification has not been received, control unit 310 receives a call from another telephone connected to the own device (step S212).

  Then, control unit 310 determines whether or not a call from another telephone has been received (step S213). If it is determined in step S213 that the call from another telephone has not been received, control unit 310 repeats the process from step S209.

  Assume that it is determined in step S213 that a call from another telephone has been received. In this case, as described above, the call is made from the telephone set that has been changed to the first telephone set and has become the first telephone set. At this stage, the transmission of the collected sound from the telephone that was the first telephone immediately before that is also stopped.

Accordingly, the control unit 310 controls the packet processing unit 303 to form an incoming call response, and returns this response to the caller telephone set via the extension I / F 305 and the LAN connection terminal 304 (step S214).

  Then, the control unit 310 connects the call path to the caller telephone, receives the packetized sound collected from the telephone transmitted through the call path, A process of recording in the recording memory is started (step S215).

  Specifically, in step S214, similarly to the processing in step S206 described above, control unit 310 transmits the packetized sound collected from the telephone transmitted through the connected speech path to LAN connection terminal 304, extension line, and the like. Received through the I / F 305.

  Then, the received packetized collected sound is packet-decomposed in the packet processing unit 303 to extract the collected sound (voice data) and sequentially record it in its own recording memory. become.

  Thereafter, the control unit 310 processes the packetized sound collected from the telephone set as the first telephone through the communication path with the already connected security company and transmits the packetized voice to the security company. Is started (step S216).

  Then, control unit 310 determines whether or not a security stop event has occurred (step S217). Here, the security stop event is, for example, the occurrence of an operation for stopping the security that is performed on the security server 3 or through any one of the telephones A to L by a guard of a security company. . A security stop event also occurs when the security server 3 detects that the timer 308 has reached the security stop time.

  When determining in step S217 that the security stop event has not occurred, the control unit 310 repeats the processing from step S209. If it is determined in step S217 that the security stop event has occurred, the control unit 310 forms a security stop notification and transmits it to each of the telephones A to L connected to its own device ( Step S218).

  Specifically, in step S218, the control unit 310 controls the packet processing unit 303 to form a security stop notification, which is transmitted through the extension I / F 305 and the LAN connection terminal 304 to all the telephones A to A connected thereto. To each of L.

  After the process of step S218, the control unit 310 disconnects (releases) the communication path connected to the security company (step S219), and then the control unit 310 starts from step S201 shown in FIG. Repeat the process.

  As described above, the security server 3 of the telephone system according to the first embodiment has a predetermined connection with the telephone connected to its own device when an abnormality such as an intruder occurs in the monitoring mode (security mode). Relay to the security company that is the notification destination.

  Then, the collected sound from the telephone is buffered in the security server 3 and transmitted to the security company, so that the whole can be transmitted without omission. In addition, when a false alarm determination notification is transmitted from the security company, the security server 3 can control all the telephones A to L connected to the own device so as to shift to the initial security state.

[Second Embodiment]
In the first embodiment described above, the telephone that picks up the voice larger than the threshold is the first telephone, and the first telephone receives the volume level provided from the other telephone, and the volume level comparison process. To form and send a notification of transition to the first telephone.

  However, such a control process can be performed not by the first telephone but by a security server having a high processing capability. In the telephone system according to the second embodiment, the security server mainly controls each telephone.

  The telephone system of the second embodiment is also configured by connecting telephones A to L to a security server, as in the case of the telephone system of the first embodiment described with reference to FIG. It is a thing. Each of the telephones A to L of the telephone system according to the second embodiment is configured in the same manner as the telephone according to the first embodiment described with reference to FIG.

  For this reason, the second embodiment will be described with reference to FIGS. 1 and 2 as necessary.

[Configuration of Security Server 3X]
The security server 3X of the telephone system according to the second embodiment is configured in substantially the same manner as the security server 3 of the telephone system according to the first embodiment described with reference to FIG. However, the security server 3X of the second embodiment is different from the security server 3 of the first embodiment in that the security server 3X includes a security information memory 320.

  FIG. 25 is a block diagram for explaining the configuration of the security server 3X of the telephone system according to the second embodiment. As can be seen from comparison with the security server 3 of the first embodiment shown in FIG. 3, the security server 3X of the second embodiment includes the security information memory 320. This is different from the security server 3 of the form. Other parts are configured in the same manner as the security server 3 of the first embodiment.

  For this reason, parts similar to those of the security server 3 according to the first embodiment described with reference to FIG. 3 are denoted by the same reference numerals in FIG. Omitted.

  The security information memory 320 of the security server 3X according to the second embodiment stores information for grasping the status of each monitoring mode and the intruder detection notification range of the telephones A to L connected to the own device. It is to be stored.

  FIG. 26 is a diagram for explaining information managed in the security information memory 320 of the security server 3X. In the security information memory 320 of the security server 3X, the information managed in the security information memory 122 of each telephone in the first embodiment is centrally managed.

  As shown in FIG. 26, the security information memory 320 of the security server 3X manages a security flag indicating whether or not the telephone system according to the second embodiment is in the monitoring mode (security mode). This security flag is “ON” when the telephone system is in the monitoring mode, and “OFF” otherwise.

  Then, for each telephone connected to the security server 3X, the first telephone flag, the candidate telephone flag, and identification information (for example, IP address) of the telephone that is the intruder detection notification destination are stored and held.

Here, the first telephone flag managed for each telephone indicates whether or not the telephone is the first telephone, and is “ON” if the telephone is the first telephone, and “OFF” otherwise. It is. The candidate telephone flag managed for each telephone indicates whether or not the telephone is a candidate telephone, and is “ON” if it is a candidate telephone, and “OFF” otherwise.

  Further, the identification information of the telephone serving as the intruder detection notification destination for each telephone is identification information of the telephone belonging to the intruder detection notification range of the telephone.

  Also in the second embodiment, similarly to the case of the first embodiment described with reference to FIGS. 4 to 9, the telephones A to L are arranged in a predetermined room. .

  Therefore, as shown in FIG. 26, in the information recording area for the telephone C, as identification information of the intruder detection notification destination, telephones B, E, and F belonging to the intruder detection notification area Ar1 shown in FIG. Identification information is registered.

  As shown in FIG. 26, in the information storage area for the telephone F, telephones A, B, C, E belonging to the intruder detection notification range Ar2 shown in FIG. , G, H, and I identification information are registered.

  In the second embodiment as well, as described with reference to FIGS. 6 to 9, as in the case of the first embodiment described above, first, the telephone C near the door is larger than the threshold value. The following explanation will be made by taking as an example a case where a voice is picked up and then a voice larger than the threshold is picked up by the telephone F.

[Operation in monitoring mode of the telephone system]
Next, the operation in the monitoring mode (security mode) of the telephone system according to the second embodiment will be specifically described.

  First, in the telephone system according to the second embodiment, as described with reference to FIGS. 6 and 7, when the abnormal sound is detected by the telephone C, the security company that is a predetermined monitoring destination An operation pattern when it is detected that it is a false report will be described.

  Even in the case of the telephone system of the second embodiment, the function of the timer 308 of the security server 3X is automatically activated, for example, at 10 pm every day, as in the case of the telephone system of the first embodiment. In the following description, it is assumed that the monitoring mode (security mode) is set.

  FIG. 27 shows an operation pattern of the telephone system in the case where an abnormal sound is detected by the telephone C in the telephone system according to the second embodiment, and a false alarm is detected by the security company that is a predetermined monitoring destination. It is a sequence diagram for demonstrating.

  The telephone system according to the second embodiment also includes telephones A to L. However, in order to simplify the explanation, in FIG. 27, the telephone C that first detects an abnormal sound and the neighboring telephones are detected. The telephones B and F and the security server 3X will be mainly described. The operation of the telephone system according to the second embodiment will be described below with reference to the sequence diagram of FIG.

  In this example, the security server 3X sets the security flag of the security information memory 320 to “ON” at 10:00 pm, and for each of the telephones A to L connected to the own device as shown in FIG. Send security start notification.

  Also in this second embodiment, each telephone manages the security flag, the first telephone flag, and the candidate telephone flag in its own security information memory 122 to determine what state the own apparatus is in. It is possible to grasp.

  Therefore, also in the telephone system of the second embodiment, each of the telephones A to L that has received the security start notification from the security server 3X sets the security flag of its own security information memory 122 to “ON”. The monitoring mode is in the initial state (security initial state).

  In each of the telephones A to L in the monitoring mode, the switch circuit 105 is switched to the hands-free microphone and the speaker unit 108 side. Then, as in the case of the first embodiment described above, each telephone collects surrounding sounds through the hands-free microphone 108M, and performs a comparison process between the volume level of the collected sounds and a predetermined threshold value. Start.

  That is, the voice (sound collected voice) collected by the hands-free microphone 108M is notified to the control unit 130 through the call voice input / output I / F 104. The control unit 130 detects the volume level of the collected sound, compares the volume level with a predetermined threshold value, and sequentially performs a process of determining whether the volume level exceeds the threshold value.

  Then, as shown by the black circles in FIG. 27, it is assumed that the telephone set C has collected a sound whose volume level is higher than a predetermined threshold value. In this case, the telephone C forms an intruder detection notification and transmits it to the security server 3X.

Upon receiving the intruder detection notification from the phone C, the security server 3X forms an intruder detection notification, which is in the intruder detection notification range Ar1 of the phone C according to the information about the phone C in the security information memory 320. Are transmitted to the telephones B, F, and E. Further, the security server 3X sets the candidate telephone flags of the telephones B, F, and E in the security information memory 320 to “ON”.

  As described with reference to FIG. 14 to FIG. 19, each notification includes information indicating where to send the notification. Therefore, each notification destination receives the notification addressed to its own device, It is possible to appropriately determine where it was transmitted from. In FIG. 27, the description of the telephone E is omitted for the sake of simplicity.

  Then, each of the telephones B, F, and E in the intruder detection notification area Ar1 that has received the intruder detection notification turns the candidate telephone flag in the security information memory 122 of the own machine “on” and becomes a candidate telephone.

  Note that, in each of the telephone C that is the first telephone and the telephones B, F, and E that are candidate telephones, the threshold value to be compared with the volume level is lowered to increase the discrimination sensitivity.

  Furthermore, the telephone C, which is the first telephone, sends a call to the security server 3X, obtains an incoming call response from the security server 3X, and communicates with the security server 3X as indicated by a double line arrow in FIG. Connect the call path to.

  Then, the telephone C transmits the collected sound collected through its own hands-free microphone 108M to the security server 3X through the connected communication path.

  As shown in FIG. 27, when the collected sound is transmitted through the communication path connected to the telephone C, the security server 3X receives this and records it in the recording memory 309 of its own device. And the security server 3X transmits to the security company which is a predetermined monitoring destination, obtains an incoming call response from the security company, and connects the communication path.

  Thereafter, as shown in FIG. 27, the security server 3X transmits the collected sound from the telephone C recorded in the recording memory 309 of the own device to the security company through a communication path connected to the security company. To do.

  Thereafter, the security company reproduces the collected sound transmitted from the security server 3X and listens to (monitors) the person in charge to determine whether an abnormality has occurred or whether it is a false alarm. Like that.

  Here, it is clear that the collected sound from the telephone C transmitted through the security server 3X is, for example, a sound of thunder or car horn, and no abnormality has occurred. And In this case, an intruder detection false alarm determination notification is transmitted from the security company through the connected communication path.

  The security server 3X that has received the intruder detection false alarm determination notification first detects a voice transmission stop request and transmits it to the telephone C of the first telephone that is the voice transmission source. In response to this, the telephone C disconnects (releases) the communication path connected to the security server 3X.

Thereafter, the security server 3X disconnects (releases) the communication path connected to the security company. Further, the security server 3X forms a repartitioning notification and transmits it to each of the telephones A to L connected to the own device. Also, the security server 3X returns (turns off) the first telephone flag and the candidate telephone flag of each telephone in the security information memory 320 of the own machine to the initial state.

  On the other hand, each of the telephones A to L that has received the repartitioning notification returns the flag information and the first telephone information of its security information memory 122 to the initial state, and the telephone that has been the first telephone or the candidate telephone, The threshold used for comparison with the volume level is returned to the normal threshold.

  As a result, as shown in FIG. 27, each of the telephones A to L returns to the initial security state in which only the security flag is “ON” and both the first telephone flag and the candidate telephone flag are “OFF”.

  As described above, in the case of the telephone system according to the second embodiment, the intruder detection notification is not directly transmitted from the first telephone to each telephone, but by the security server 3X. Based on the information in the security information memory 320, it is transmitted to a necessary telephone.

  In the case of the telephone system of the second embodiment as well, as in the case of the telephone system of the first embodiment, the collected sound from the telephone set as the first telephone is sent to the security server 3X. The information is sent to the security company via the network, so that the person in charge at the security company can listen. In this way, if it can be determined that the sound is not clearly abnormal, such as thunder or car horn, it is recommended not to take a wrong response such as urging a guard or reporting to the police. it can.

  Next, as described with reference to FIGS. 6 to 9, in the telephone system according to the second embodiment, an operation pattern when the first telephone is switched from the telephone C to the telephone F will be described. FIG. 28 and FIG. 29 are sequence diagrams for explaining an operation pattern when the first telephone is shifted from the telephone C to the telephone F in the telephone system according to the second embodiment.

  As described above, the telephone system according to the second embodiment also includes the telephones A to L. However, in order to simplify the description, in FIG. 28 and FIG. A description will be given focusing on the detected telephone C, the neighboring telephones B and F, and the security server 3X. Hereinafter, the operation of the telephone system will be described with reference to the sequence diagrams of FIGS.

  As can be seen from a comparison between FIG. 28 and FIG. 27, in this example as well, the processing from the transmission of the security start notification to the transmission of the collected sound to the security company is the same as the operation pattern described with reference to FIG. The same is done.

  That is, at 10 pm, the security server 3X transmits a security start notification to each of the telephones A to L connected to the own machine, as shown in FIG. Receiving the security start notification from the security server 3X, each of the telephones A to L turns on the security flag in its own security information memory 122 and enters the monitoring mode initial state (security initial state).

  Then, each of the telephones A to L in the monitoring mode collects surrounding sounds through the hands-free microphone 108M, and starts a comparison process between the volume level of the collected sounds and a predetermined threshold value.

  In FIG. 28, it is assumed that the telephone C collects a sound whose volume level is higher than a predetermined threshold as indicated by a black circle on the lower side of the telephone C. In this case, the telephone C forms an intruder detection notification and transmits it to the security server 3X.

Upon receiving the intruder detection notification from the phone C, the security server 3X forms an intruder detection notification, which is in the intruder detection notification range Ar1 of the phone C according to the information about the phone C in the security information memory 320. Are transmitted to the telephones B, F, and E. Further, the security server 3X sets the candidate telephone flags of the telephones B, F, and E in the security information memory 320 to “ON”.

  Then, each of the telephones B, F, and E in the intruder detection notification area Ar1 that has received the intruder detection notification turns the candidate telephone flag in the security information memory 122 of the own machine “on” and becomes a candidate telephone.

  Note that, in each of the telephone C that is the first telephone and the telephones B, F, and E that are candidate telephones, the threshold value to be compared with the volume level is lowered to increase the discrimination sensitivity.

  Furthermore, the telephone C, which is the first telephone, sends a call to the security server 3X, obtains an incoming call response from the security server 3X, and communicates with the security server 3X as indicated by a double line arrow in FIG. Connect the call path to.

  Then, the telephone C transmits the collected sound collected through its own hands-free microphone 108M to the security server 3X through the connected communication path.

  As shown in FIG. 28, when the collected sound is transmitted through the communication path connected to the telephone C, the security server 3X receives this and records it in the recording memory 309 of its own device. And the security server 3X transmits to the security company which is a predetermined monitoring destination, obtains an incoming call response from the security company, and connects the communication path.

  Thereafter, as shown in FIG. 28, the security server 3X transmits the collected sound from the telephone C recorded in the recording memory 309 of the own device to the security company through a communication path connected to the security company. To do.

  Thereafter, as indicated by a black circle on the lower side of the telephone F in FIG. 28, as in the case described with reference to FIG. Is picked up with a voice larger than a predetermined threshold.

  In this case, the telephone set F forms a volume level notification that notifies the security server 3X of the volume level, and transmits the volume level notification to the security server 3X.

  The security server 3X that has received the volume level notification from the telephone F forms a comparison volume level request for the telephone C, which is currently the first telephone, based on the information in the security information memory 320 of its own device. This is transmitted to the telephone C.

  This comparison volume level request requests the telephone C, which is the first telephone, to provide the volume level of the collected sound in the telephone C to be compared with the volume level from the telephone F. In response to this, the telephone C, which is the first telephone at this stage, notifies the security server 3X of the volume level of the collected voice of its own device. Thereby, in the security server 3X, the volume level from the telephone set F and the volume level of the collected sound of the telephone set C, which is the first telephone set to be compared with this, are aligned.

  Then, the process proceeds to the process shown in FIG. 29, and the security server 3X compares the volume level from the telephone F with the volume level from the telephone C that is the first telephone at this stage.

  In this case, the volume level provided from the telephone C to the security server 3X is the volume level of the collected sound when the telephone C receives the comparison volume level request from the security server 3X.

  However, it is not limited to this. The telephone that has become the first telephone stores the collected sound for a predetermined time in its own memory. In the first telephone set, the same timing as when the telephone (in this example, the telephone F) that has transmitted the volume level from when the request for the volume level for comparison is received will pick up the sound of the volume level. Let's get the volume level of the past collected sound. Thus, for example, the volume level of the collected sound in the past for a predetermined time acquired by the first telephone may be transmitted to the security server 3X.

  It should be noted that the volume level of the past collected sound in the first telephone is used for comparison from the security server 3X after it is determined that the other telephone has collected the sound of a volume level higher than the threshold. The volume level request may be determined according to the time taken for the first telephone to receive it.

  As a result of the comparison of the volume level in the security server 3X, it is assumed that the volume level from the telephone C, which is the first telephone, is higher than the volume level from the telephone F at the present time. In this case, since it is the telephone C that has detected the abnormality most often, the first telephone remains the telephone C, and monitoring of the collected sound is continued in each telephone.

  On the other hand, as a result of the comparison of the volume level in the security server 3X, it is assumed that the volume level from the telephone F is higher than the volume level from the telephone C which is the first telephone at present.

  In this case, since it is the telephone F that has detected the abnormality most, the security server 3X forms a voice transmission request to the telephone F and transmits it to the telephone F.

  Receiving the voice transmission request, the telephone set F turns on the first telephone flag in its own security information memory 122 and turns off the candidate telephone flag.

  Then, the telephone F makes a call to the security server 3X, obtains an incoming call response from the security server 3X, and connects the communication path to the security server 3X as indicated by a double-line arrow in FIG. To do.

  Then, the telephone F transmits the collected sound collected through its own hands-free microphone 108M to the security server 3X through the connected communication path.

  As shown in FIG. 29, when the collected sound is transmitted through the communication path connected to the telephone F, the security server 3X receives this and replaces it with the collected sound from the telephone C. Recorded sound from the telephone F is recorded in the recording memory 309 of the own device.

  Then, the security server 3X transmits the collected sound from the telephone F recorded in the recording memory 309 of the own device to the security company through the communication path already connected to the security company that is the predetermined monitoring destination. To do.

  As a result, the security company can receive and listen to the collected sound from the telephone F that has become the first telephone instead of the collected sound from the telephone C. .

  Then, the security server 3X forms a voice transmission stop request for the telephone C that has been the first telephone so far, based on the information in the security information memory 320 of the own machine, and transmits this to the telephone C.

  Further, the security server 3X sets the first telephone flag of the telephone F to “ON”, sets the candidate telephone flag of the telephone F to “OFF”, and sets the first telephone flag of the telephone C in the security information memory 320 of the own machine. Turn off. Thereby, the transition of the first telephone is completed.

  Then, the telephone C that has received the voice transmission stop request disconnects (releases) the communication path connected to the security server 3X.

Thereafter, the security server 3X, as shown in FIG. 9, based on the information about the telephone F in the security information memory 320 of its own machine, the telephones A, B, C within the intruder detection notification area Ar2 of the telephone F. , E, G, H, and I are formed and sent to telephones A, B, C, E, G, H, and I. In FIGS. 28 and 29, the description of the telephones other than the telephones C, B, and F is omitted for the sake of simplicity.

  Then, each of the telephones A, B, C, E, G, H, and I in the intruder detection notification area Ar2 that has received the intruder detection notification has the candidate telephone flag in its own security information memory 122 set to “ON”. Candidate phone.

  Then, as shown in FIG. 29, after a security guard of the security company arrives, a security function stop command is input to the security server 3X. This security function stop command can be issued, for example, through any of the telephones A to L, or can be directly input to the security server 3X.

  Upon receiving the security function stop command, the security server 3X forms a security end notification and transmits it to each of the telephones A to L connected to itself. Further, the security server 3X clears the flag relating to the security function of the security information memory 320 of the own machine.

  Receiving the security end notification, each of the telephones A to L turns off all the flag information in the security information memory 122 so that the monitoring mode is ended, and the operation as a normal telephone is returned. .

  As described above, in the case of the telephone system according to the second embodiment, the intruder detection notification is not directly transmitted / received between the telephones, but the security server 3X is required by the function of the security server 3X. It supplies to the telephone which becomes. Thereby, the load on the telephone can be reduced.

  Also in the telephone system according to the second embodiment, in the monitoring mode, any of the telephones A to L connected to the security server 3X picks up a sound having a volume level larger than a predetermined threshold value. In this case, the collected sound can be transmitted to the security company via the security server 3X.

  The person in charge of the security company listens to the collected sound from the security server 3X and knows whether an intruder or other abnormality has occurred or what kind of state it is when an abnormality has occurred. Will be able to. When it is determined that an abnormality has occurred, or when it is determined that there is a high possibility that an abnormality has occurred, an appropriate response can be taken promptly.

[Handling individual phones in the phone system]
Next, details of processing in the monitoring mode performed in each of the telephones A to L of the telephone system of the second embodiment will be described. 30 to 32 are flowcharts for explaining processing in the monitoring mode performed in the telephones A to L of the telephone system according to the second embodiment. The process shown in FIGS. 30 to 32 is a process executed mainly in the control unit 130 of the telephone set (telephone terminal 1) of this embodiment configured as described with reference to FIG.

  In the telephone according to the present embodiment, the control unit 130 always receives a notification transmitted to the own device through the LAN connection terminal 101 and the LAN I / F 102 (step S301). It is determined whether or not a notification has been received (step S302).

  If it is determined in step S302 that the notification addressed to the own device has not been received, the processing from step S301 is repeated to wait for reception of the notification addressed to the own device. When determining in step S302 that the notification addressed to the own device has been received, the control unit 130 determines whether the received notification addressed to the own device is a security start notification from the security server 3X (step S303). ).

  If it is determined in step S303 that the notification is not a security start notification, the control unit 130 executes processing according to the received notification (step S304). For example, when the received notification is an incoming notification to the own device, a series of incoming processing such as ringing the ringer 113 is performed to notify that the own device has an incoming call.

  In the determination process of step S303, when it is determined that the received notification addressed to the own device is a security start notification, the control unit 130 sets the security flag of the security information memory 122 to “ON” and sets the own device to the monitoring mode. (Step S305).

  Then, the control unit 130 switches the switch circuit 105 to the hands-free microphone and the speaker unit 108 side, and starts a process of collecting surrounding sounds through the hands-free microphone 108M (step S306).

  Thereafter, the control unit 130 determines whether or not the volume level of the sound being picked up through the microphone 108M is greater than a predetermined threshold value (whether or not it is exceeded) (step S307). That is, as described above, the collected sound collected by the hands-free microphone 108M is supplied to the control unit 130 through the call voice input / output I / F 104, where the volume level is detected and a predetermined threshold value is detected. To be compared with.

  If it is determined in step S307 that the volume level of the collected sound is not higher than the predetermined threshold, the control unit 130 detects an intruder addressed to the own device through the LAN connection terminal 101 and the LAN I / F 102. A notification is received (step S308). Then, control unit 310 determines whether or not an intruder detection notification addressed to itself is received (step S309).

  If it is determined in step S308 that the intruder detection notification addressed to the own device has not been received, the control unit 130 repeats the processing from step S307.

  If it is determined in step S308 that the intruder detection notification addressed to the own device has been received, the control unit 130 accesses the security information memory 122 and sets the candidate telephone flag to “ON” (step S310). ).

  As a result, the own device becomes a candidate telephone. In this case, in the telephone set as the candidate telephone, the threshold value to be compared with the volume level of the collected voice is also set lower, so that the discrimination sensitivity is increased. After the process of step S310, the control unit 130 repeats the process from step S307.

  If it is determined in step S307 that the volume level of the collected voice has become larger than a predetermined threshold value, the control unit 130 refers to the security information memory 122 of the own device and determines whether the own device is a candidate telephone. It is determined whether or not (step S311).

  If it is determined in step S311 that the mobile phone is not a candidate telephone, the process proceeds to step S312 in FIG. 31, and the control unit 130 forms an intruder detection notification and transmits it to the security server 3X. (Step S312).

  Specifically, in step S312, the control unit 130 controls the packet processing unit 103 to form an intruder detection notification and transmits it to the security server 3X through the LAN I / F 102 and the LAN connection terminal 101.

  Then, the control unit 130 receives the intruder detection notification from the security server 3X through the LAN connection terminal 101 and the LAN I / F 102 (step S313), and sets the first telephone flag in the security information memory of the own device to “ON”. (Step S314).

  Further, the control unit 130 receives a voice transmission request from the security server 3X through the LAN connection terminal 101 and the LAN I / F 102 (step S315), and determines whether a voice transmission request has been received (step S316). .

  When it is determined in step S316 that the voice transmission request has not been received, the control unit 130 repeats the processing from step S315 so as to wait until the voice transmission request addressed to itself is received. Is done.

  On the other hand, if it is determined in step S311 that the own device is a candidate telephone, the process proceeds to step S330 in FIG. 31, and the control unit 130 sets the volume level of the collected sound of the own device to the security server 3X. Transmit (step S330).

  Specifically, in step S330, the control unit 130 controls the packet processing unit 103 to form a volume level notification for notifying the volume level of the collected voice of its own device, which is used as the LAN I / F 102, the LAN connection terminal. 101 to the security server 3X.

  Then, the control unit 130 receives a voice transmission request from the security server 3X through the LAN connection terminal 101 and the LAN I / F 102 (step S331), and determines whether a voice transmission request has been received (step S332). .

  If it is determined in step S332 that the voice transmission request has not been received, the control unit 130 performs the processing from step S307 shown in FIG.

  If it is determined in step S332 that the voice transmission request has been received, the control unit 130 sets the first telephone flag in the security information memory 122 of the own device to “ON” and sets the candidate telephone flag to “OFF”. (Step S333).

  And as shown in FIG. 31, when it is judged that the audio | voice transmission request | requirement was received in the judgment process of step S316, and after the process of step S333, the control part 130 performs the process of step S317.

  That is, the control unit 130 transmits to the security server 3X through the LAN I / F 102 and the LAN connection terminal 101, receives an incoming response from the security server 3X, and connects the communication path between the own device and the security server 3. (Step S317).

  Then, the control unit 130 of the telephone sequentially transmits the sound collected through the hands-free microphone 108M to the security server 3X (step S318).

  In this step S318, first, the voice picked up through the hands-free microphone 108M is sequentially packetized in the packet processing unit 103 as a packet addressed to the security server 3X. Then, the packetized collected sound is transmitted to the LAN cable 2 through the LAN I / F 102 and the LAN connection terminal 101, and transmitted to the security server 3X.

  Thereafter, the control unit 130 receives a notification addressed to itself through the LAN connection terminal 101 and the LAN I / F 102 (step S319), and determines whether a notification addressed to itself is received (step S320). .

  If it is determined in step S320 that the notification addressed to the device itself has not been received, the control unit 130 repeats the processing from step S307 in FIG.

  When it is determined in step S320 that the notification addressed to the own device has been received, the control unit 130 proceeds to the processing in step S321 in FIG. 32, and whether the received notification is a request for a comparison volume level addressed to the own device. It is determined whether or not (step S321).

  If it is determined in step S321 that the comparison volume level request addressed to the own device has been received, a volume level notification for notifying the volume level of the collected sound of the own device is formed and transmitted to the security server 3X. (Step S322).

  Specifically, in step S322, the control unit 130 controls the packet processing unit 103 to form a volume level notification for notifying the volume level of the collected voice of its own device, and this is used as the LAN I / F 102, the LAN connection terminal. 101 to the security server 3X.

  Thereafter, the control unit 130 receives a voice transmission stop request addressed to itself through the LAN connection terminal 101 and the LAN I / F 102 (step S323), and determines whether or not a voice transmission stop request addressed to itself is received. Judgment is made (step S324).

  When determining in step S324 that the voice transmission stop request has not been received, the control unit 130 performs the processing from step S307 shown in FIG.

  If it is determined in step S324 that the voice transmission stop request has been received, the control unit 130 stops transmission of the collected voice to the security server 3X, and sets a communication path connected to the security server 3X. Disconnect (release) (step S325).

  In step S325, control unit 130 also performs a process of turning off the first telephone flag in security information memory 122 of the own device. And the control part 130 repeats the process from step S307 of FIG. 30 after the process of step S325.

  If it is determined in step S321 that the received notification is not a volume level notification addressed to the own device, control unit 130 determines whether the received notification is a re-partition notification addressed to the own device. (Step S326).

  If it is determined in step S326 that the received notification is a re-partitioning notification addressed to the own device, the control unit 130 sets the first telephone flag in the security information memory 122 of the own device to “OFF” (step S327). Thereafter, the processing from step S307 shown in FIG. 30 is repeated.

  If it is determined in step S326 that the received notification is not a re-partitioning notification addressed to the own device, the control unit 130 determines that the security end notification has been received and stores the security information memory 122 of the own device. The flag information and the first telephone information are initialized (step S328), and the operation returns to the normal telephone operation (step S329). Thereafter, the processing from step S301 shown in FIG. 30 is repeated.

  As described above, the processing shown in FIGS. 30 to 32 is executed in each of the telephones A to L configuring the telephone system of the second embodiment. When the monitoring mode is set, surrounding sounds are collected through the hands-free microphone 108M, and the collected sounds can be transmitted to the security server 3X when the volume level of the collected sounds is larger than the threshold value. .

  Further, in the telephone of the telephone system of the second embodiment, since the security server 3X basically performs intruder detection notification, there is no need to directly communicate with other telephones. There is no comparison with the volume level of the telephone. For this reason, the load on the telephone itself in the monitoring mode can be reduced.

  Of course, also in the case of the telephone system of the second embodiment, when the telephone detects an abnormality such as an intruder, the intruder determined according to the location of the telephone that detected the abnormality through the security server 3X. An intruder detection notification is sent to the telephone in the detection notification range. As a result, the abnormal sound detection sensitivity is increased as a candidate telephone having a high possibility of becoming the first telephone, and the abnormal sound can be collected with high accuracy.

  Since the telephone that detects the abnormal sound best can be the first telephone that transmits the collected sound to the security server 3X, the abnormal sound is most appropriately detected in the monitoring mode. The collected sound of the telephone that is collecting sound can be transmitted to the security server 3X.

[Telephone system security server processing]
Next, details of the processing in the monitoring mode performed in the security server 3X of the telephone system of the second embodiment will be described. FIGS. 33 to 36 are flowcharts for explaining the processing in the monitoring mode performed in the security server 3X of the telephone system of the second embodiment. The processing shown in FIGS. 33 to 36 is processing executed mainly in the control unit 310 of the security server 3X of this embodiment configured as described with reference to FIG.

  The control unit 310 of the security server 3X according to this embodiment determines whether or not a security start event that triggers the transition to the monitoring mode (security mode) is detected in the normal time that is not the monitoring mode. (Step S401).

  Here, as in the case of the first embodiment described above, the security start event is, for example, the arrival of the transition time to the monitoring mode set in the timer 308 or the monitoring mode transmitted via the telephone. For example, receiving a migration request (migration notification).

  When determining in step S401 that the security start event has not been detected, the control unit 310 repeats the determination processing from step S401. If it is determined in step S401 that a security start event has been detected, the control unit 310 forms a security start notification and transmits it to each of the telephones A to L connected to the own device ( Step S402).

  Specifically, in step S402, the control unit 310 controls the packet processing unit 303 to form a security start notification to each telephone and sends it to the LAN cable 2 through the extension I / F 305 and the LAN connection terminal 304. It transmits to each telephone set A-L. In step S402, control unit 310 also performs a process of turning on the security flag in security information memory 320 of the own device.

  Thereafter, the control unit 310 of the security server 3X receives an intruder detection notification from the telephone having started the security function (entering the monitoring mode) via the LAN connection terminal 304 and the extension I / F 305 ( Step S403).

  Then, control unit 310 determines whether or not an intruder detection notification has been received from the telephone set in the monitoring mode (step S404). If it is determined in step S404 that the intruder detection notification has not been received, the processing from step S403 is repeated.

  If it is determined in step S404 that an intruder detection notification has been received from the telephone set in the monitoring mode, control unit 310 determines that an intruder has entered the intruder detection notification range telephone of the intruder detection notification source telephone. A detection notification is formed and transmitted (step S405).

  Specifically, in step S405, the control unit 310 refers to the intruder detection notification destination information corresponding to the intruder detection notification source in the security information memory 320 of the own device, controls the packet processing, and controls the intruder for the target telephone. Form a detection notification.

  Then, the control unit 310 sends the formed intruder detection notification to the LAN cable 2 through the extension I / F 305 and the LAN connection terminal 304, and sends it to each telephone belonging to the intruder detection notification range of the intruder detection notification source telephone. Send.

  Then, the control unit 310 sets the first telephone flag of the intruder detection notification source to “on” and sets the candidate telephone flag of the telephone that is the intruder detection notification destination to “on” in the security information memory 320 of the own device. Is executed (step S406).

  Thereafter, control unit 310 forms and transmits a voice transmission request to the intruder detection notification source telephone (first telephone) (step S407). Specifically, in step S407, control unit 310 controls packet processing, forms a voice transmission request for the telephone set as the first telephone set, and sends it to LAN cable 2 through extension I / F 305 and LAN connection terminal 304. , To the telephone that became the first telephone.

  Thereafter, control unit 310 proceeds to the process of step S408 shown in FIG. 34, and receives a call from the first telephone through LAN connection terminal 304 and extension I / F 405 (step S408). It is determined whether or not a call has been received (step S409).

  If it is determined in step S409 that the call from the first telephone has not been received, the process from step S408 is repeated to wait for the call from the first telephone.

  If it is determined in step S409 that the call from the first telephone has been received, control unit 310 returns an incoming call response to the first telephone (step S410).

  Then, control unit 310 connects the call path to the caller's telephone, receives the packetized sound collected from the first telephone transmitted through the call path, and uses this as its own device. The process of recording in the recording memory is started (step S411).

  Specifically, in step S411, the control unit 310 receives the packetized sound collected from the first telephone transmitted through the connected speech path through the LAN connection terminal 304 and the extension I / F 305.

  Then, the received packetized collected sound is subjected to packet decomposition in the packet processing unit 303 to extract the collected sound (voice data) and sequentially record it in the recording memory 309 of the own device. It will be.

After that, the control unit 310 transmits to the security company that is a predetermined monitoring destination through the external line I / F 306 and the IP network connection terminal 307, receives the incoming response from the security company, and A communication path is connected between them (step S412).

  Then, the control unit 310 starts a process of transmitting the collected sound from the telephone recorded in the recording memory 309 of the own device to the security company through a communication path connected to the security company (step S413).

Specifically, in step S 413, control unit 310 reads the sound collected from the telephone set recorded in its own recording memory 309 , and packetizes it in packet processing unit 303. The packetized sound collected is transmitted to the communication path connected to the security company through the external line I / F 306 and the IP network connection terminal 307 and transmitted to the security company.

Thereafter, the control unit 310 receives a false alarm determination notification from the security company through the IP network connection terminal 307 and the external line I / F 306 (step S414). And the control part 310 judges whether the misinformation discrimination notification from the security company was received (step S415).

  When it is determined in step S415 that a false alarm determination notification has been received, control unit 310 forms a repartitioning notification and transmits it to each of all telephones A to L connected to the own device ( Step S416).

  Specifically, in step S416, the control unit 310 controls the packet processing unit 303 to form a repartitioning notification, which is transmitted through the extension I / F 305 and the LAN connection terminal 304 to all the telephones A to A connected thereto. To each of L.

  After that, the control unit 310 “turns off” the first telephone flag and the candidate telephone flag of each telephone in the security information memory 320 of the own device (step S417), and then the control unit 310 is shown in FIG. The processing from step S403 is repeated.

  If it is determined in step S415 that no false alarm determination notification has been received, control unit 310 proceeds to the process in step S418 in FIG. 35, and the volume level from another telephone connected to the own device. A notification is received (step S418).

  Then, control unit 310 determines whether or not a volume level notification has been received from another telephone (step S419). If it is determined in step S419 that the volume level notification from another telephone has not been received, control unit 310 repeats the process from step S418.

  When it is determined in step S419 that the volume level notification has been received from another telephone (the telephone as a candidate for the first telephone), control unit 310 performs a comparison requesting the provision of a volume level for comparison. A volume level provision request is formed and transmitted to the first telephone set at the present stage (step S420).

Specifically, in step S420, the control unit 310 controls the packet processing unit 303 to form a comparison volume level request for the first telephone set, which is transmitted to the first telephone set through the extension I / F 305 and the LAN connection terminal 304. Send.

  Thereafter, control unit 310 receives a volume level notification (comparison volume level notification) transmitted from the first telephone through LAN connection terminal 304 and extension I / F 305 (step S421).

  Then, control unit 310 performs processing for comparing the volume level from the other telephone (the telephone as a candidate for the first telephone) received in step S418 with the volume level from the first telephone received in step S421. (Step S422).

  Thereafter, control unit 310 determines whether or not an intruder has moved because the volume level from the other telephone set (the telephone set as the candidate for the first telephone set) received in step S418 is higher (step S418). S423).

  If it is determined in step S423 that no intruder has moved (the volume level from the first telephone received in step S421 is higher), the first telephone is not transferred, and step S418 is performed. Repeat the process from.

  When it is determined in step S423 that the intruder has moved (the volume level from the telephone set as the first telephone candidate received in step S418 is higher), the control unit 310 A voice transmission request is transmitted to the telephone (step S424). That is, the transition of the first telephone is performed.

Specifically, in step S424, the control unit 310 controls the packet processing unit 303 to form a voice transmission request for the other telephone set, and sends this request to the other telephone set through the extension I / F 305 and the LAN connection terminal 304. To send.

  Then, control unit 310 receives a call from the other telephone that has transmitted the voice transmission request (step S425), and determines whether a call from the other telephone is received (step S426). .

  If it is determined in step S426 that the call from the other telephone has not been received, control unit 310 repeats the process from step S425 and waits until a call from the other telephone is received. It is made to become.

  If it is determined in step S426 that the call from the other telephone has been received, control unit 310 proceeds to the process in step S427 of FIG. 36 and sends an incoming call response to the other telephone that has made the call. A reply is made (step S427).

  Thereafter, the control unit 310 connects the call path to the caller telephone, receives the packetized sound collected from the other telephones transmitted through the call path, The process of recording in the recording memory of the own device is started (step S428).

  Then, the control unit 310 starts processing to packetize the collected sound from the telephone set as the first telephone and send it to the security company through the communication path with the already connected security company. (Step S429).

  Then, control unit 310 forms and transmits a voice transmission stop request to the telephone that has been the first telephone so far (step S430). As a result, the transmission of the collected sound from the telephone that has been the first telephone is stopped, and the communication path between the telephone and the security server 3X is disconnected (released).

Thereafter, the control unit 310 updates its own security information memory 320 to the latest state (step S431). Step control unit 310 in S431 turns off the first phone flag phones were first phone to its security information memory 320 of its own. Further, the first telephone flag of the other telephone that has newly transmitted the collected sound in the security information memory 320 of the own device is set to “ON”, and the candidate telephone flag of the other telephone is set to “OFF”. " Thereby, the transition of the first telephone is completed.

  Then, control unit 310 forms an intruder detection notification for the telephone in the intruder detection notification range of the telephone that has newly become the first telephone, and transmits this (step S432).

  Specifically, in step S432, control unit 310 refers to the intruder detection notification destination information of the new first telephone in its own security information memory 320 and controls packet processing unit 303 to intrude into the target telephone. A person detection notification.

  Then, control unit 310 sends the formed intruder detection notification to LAN cable 2 via extension I / F 305 and LAN connection terminal 304, and transmits it to each of the telephones belonging to the intruder detection notification range of the new first telephone. .

  Thereafter, control unit 310 determines whether or not a security stop event has occurred (step S433). Here, the security stop event is, for example, the occurrence of a security stop operation that is performed on the security server 3X or through one of the telephones A to L by a security company security guard or the like. . A security stop event also occurs when the security server 3X detects that the timer 308 has reached the security stop time.

  If it is determined in step S433 that the security stop event has not occurred, control unit 310 repeats the processing from step S414 in FIG.

  When it is determined in step S433 that the security stop event has occurred, the control unit 310 forms a security stop notification and transmits it to each of the telephones A to L connected to the own device ( Step S434).

  Specifically, in step S434, the control unit 310 controls the packet processing unit 303 to form a security stop notification, which is transmitted through the extension I / F 305 and the LAN connection terminal 304 to all the telephones A to A connected thereto. To each of L.

  After the process of step S434, the control unit 310 initializes the flag information in the security information memory 320 of the own device so as to return to the normal telephone mode (step S435). Then, control unit 310 disconnects (releases) the communication path connected to the security company (step S436), and thereafter, control unit 310 repeats the processing from step S401 shown in FIG. To do.

  As described above, the security server 3X of the telephone system according to the second embodiment is also responsible for the function of the first telephone in the telephone system according to the first embodiment, and reduces the load on the telephone. I am doing so.

  The security server 3X of the telephone system according to the second embodiment also has a predetermined notification and a telephone connected to its own device when an abnormality such as an intruder occurs in the monitoring mode (security mode). Relay to the previous security company.

  Then, the collected sound from the telephone is buffered in the security server 3X and transmitted to the security company, so that the whole can be transmitted without omission. Further, when a false alarm determination notification is transmitted from the security company, the security server 3X can control all the telephones A to L connected to the own device, and can shift to the initial security state.

[Others]
[Transmission of collected audio from all phones in the intruder detection notification range]
In the above-described embodiment, the collected voice is transmitted to the security servers 3 and 3X by the telephone set as the first telephone, but the present invention is not limited to this.

  For example, when a telephone that picks up sound of a volume level greater than the threshold value is generated, the collected sound of all telephones that belong to the intruder detection notification range of the telephone, including the telephone, is transmitted through the security servers 3 and 3X. You may make it transmit to a predetermined monitoring destination.

  In this case, in the predetermined monitoring destination, it is possible to listen to the surrounding sound where the abnormal sound has occurred, so that the situation of the place where the abnormal sound has occurred can be grasped more accurately. Is done.

  Also, when the transition of the first telephone occurs, the previous first telephone and the new first telephone can be distinguished so that they no longer belong to the intruder detection notification range of the new first telephone. It is also possible to return the candidate telephone flag of the telephone to “off”. Accordingly, it is possible to more appropriately detect an abnormality such as an intruder using a telephone having an intruder detection notification range corresponding to the latest first telephone.

  Of course, since the volume level check of the collected sound is always performed according to the monitoring mode even through a telephone outside the intruder detection notification range, the location where the abnormal sound is generated may suddenly move greatly. Even if it occurs, the occurrence of abnormal sound can be detected without any problem.

  In the monitoring mode, the security servers 3 and 3X reject, for example, incoming calls from other than the security company. Thereby, it is possible to prevent the monitoring function using the collected sound in the monitoring mode from being disturbed by an incoming call from the outside.

[Intruder movement route grasp function]
Further, in the case of the telephone systems of the first and second embodiments described above, the telephone that picks up the sound with the highest volume level is the first telephone. For this reason, it is possible to grasp the movement path of the intruder by keeping a history of changes of the first telephone that transmits the collected sound on the security servers 3 and 3X side.

  In other words, after the memory mode (route holding means) included in the security servers 3 and 3X enters the monitoring mode, the telephone that first transmits the identification information of the telephone that has become the first telephone and then the collected sound is transmitted. Each time it changes, the identification information of the telephone that transmits the collected sound is recorded and held in order.

  In the first and second embodiments described above, as described with reference to FIGS. 4 to 9, the position of each telephone is transcribed on a graph paper or the like, and the intruder detection notification range is specified. The location of each telephone is accurately grasped.

  For this reason, the movement path | route of an intruder can be grasped | ascertained by following the order of transfer of a 1st telephone according to the arrangement position of a telephone.

[Use other than IP phone terminals]
In the above-described embodiment, the case where the telephone system is configured using the IP telephone terminal has been described as an example. However, the present invention is not limited to this. It is also possible to construct a similar telephone system using a conventional telephone system using a button telephone terminal. In this case, what is necessary is just to comprise so that the function of the security servers 3 and 3X may implement | achieve what is called a main apparatus.

[Flexibility of telephone system]
Further, the telephone system of the above-described embodiment is merely an example, and a wider range of telephone systems can be configured using a larger number of telephones. On the contrary, the present invention can be applied to a telephone system including a single telephone and a security server. In this case, since the concept of intruder detection notification range does not exist, the control can be simplified.

  In addition, by forming a telephone that has the functions of the telephone and the security server described above, the present invention can be realized by the telephone.

  Further, the operations and processes described using the sequence diagrams and flowcharts of the above-described embodiments are also examples, and various changes and improvements can be made. In this case, the important point is that an abnormality such as an intruder is detected based on the volume level of the sound to be collected by the microphone of the telephone, and when the abnormality is detected, the sound collected by the telephone is An important point is a configuration capable of transmitting to a predetermined monitoring destination and monitoring the collected sound of the telephone set at the predetermined monitoring destination.

[Availability of handset microphones, etc.]
In the first and second embodiments described above, the ambient sound is collected by the hands-free microphone 108M by switching the switch circuit 105 to the hands-free microphone and the speaker unit 108 side in the monitoring mode. I made it sound.

  However, in this case, since the hands-free speaker 108S is not used, in the monitoring mode, a switch circuit may be provided and switched so that the hands-free speaker 108S is not used.

  In the above-described embodiment, the surrounding sound is picked up using the hands-free microphone. However, the present invention is not limited to this. In the monitoring mode, for example, it may be configured to pick up surrounding sounds using a handset microphone.

  In this case, if the sensitivity of the microphone is insufficient, various measures can be taken to increase the sensitivity of the microphone of the handset only in the monitoring mode.

  For example, it is possible to take measures such as increasing the amplification factor of the sound collected through the microphone of the handset only in the monitoring mode.

[Detect anomalies other than intruders]
In the above-described embodiment, an example has been described in which an intruder mainly occurs and a sound made by the intruder is detected as an abnormal sound. However, the occurrence of an abnormality is only the occurrence of the intruder. It is not something to detect.

  For example, abnormal noise is generated even when a fire occurs, and abnormal noise is also generated by an earthquake or the like. For this reason, when a sound that cannot normally be generated is generated, it can be detected as an abnormal sound and transmitted to a predetermined monitoring destination through the security server. As a result, an abnormal sound can be heard at a predetermined monitoring destination, and the occurrence state of the abnormality can be appropriately determined and appropriate action can be taken.

  DESCRIPTION OF SYMBOLS 1 ... Telephone (IP telephone terminal), 101 ... LAN connection terminal, 102 ... LAN I / F, 103 ... Packet processing part, 104 ... Call voice input / output I / F, 105 ... Switch circuit, 106 ... Handset connection terminal, 107 ... Handset, 108 ... hands-free microphone and speaker unit, 108M ... hands-free microphone, 108S ... hands-free speaker, 109 ... operation input unit, 110 ... operation input I / F, 111 ... display controller, 112 ... display, 113 ... Ringer 113, 121 ... Report processing unit, 122 ... Security information memory, 130 ... Control unit, 131 ... CPU, 132 ... ROM, 133 ... RAM, 134 ... CPU bus, 2 ... LAN cable, 3, 3X ... Security server , 301 ... call control memory, 302 ... Control packet generation unit, 303 ... packet processing unit, 304 ... LAN connection terminal, 305 ... extension I / F, 306 ... external line I / F, 307 ... IP network connection terminal, 308 ... timer, 309 ... recording memory, 310 ... Control unit, 311 ... CPU, 312 ... ROM, 313 ... RAM, 314 ... CPU bus, 320 ... security information memory

Claims (9)

A telephone system including a monitoring mode, comprising a server device that controls connection between one or more telephone terminals and one or more telephone terminals and a communication device connected to a communication network,
One or more telephone terminals are
A microphone that picks up the surrounding sound in the monitoring mode;
Discrimination means for discriminating whether or not the volume level of the sound collected by the microphone exceeds a threshold;
When the determination means determines that the volume level has exceeded a threshold, a voice line is connected to the server device and a sound collected by the microphone is transmitted to the server device. Means and
The server device
Receiving means for receiving collected sound transmitted through a telephone line connected to the telephone terminal in the monitoring mode;
When the collected sound is received through the receiving means, a reception voice transmitting means for connecting a telephone line to a predetermined monitoring destination and transmitting the collected sound received through the receiving means to the predetermined monitoring destination It equipped with a door,
The telephone system according to claim 1, wherein the determination means of one or more of the telephone terminals increases the determination sensitivity by decreasing the threshold when determining that the volume level exceeds a threshold . The telephone system according to claim 1 ,
One or more telephone terminals are
Storage means for storing and holding specific information of one or more other telephone terminals that should transmit an intruder detection notification determined according to the location of the telephone terminal;
A detection notification transmission unit configured to transmit an intruder detection notification to one or more other telephone terminals based on the specific information of the storage unit when the determination unit determines that the volume level exceeds a threshold;
A detection notification receiving means for receiving an intruder detection notification from another telephone terminal,
The telephone system according to claim 1, wherein when the intruder detection notification is received through the detection notification receiving unit, the determination unit decreases the threshold value to increase the determination sensitivity. The telephone system according to claim 2 ,
One or more telephone terminals are
After receiving the intruder detection notification through the detection notification receiving means, the volume level is set to the intruder detection notification when the volume level of the sound collected by the microphone exceeds the threshold value by the determination means. A volume level transmission means for transmitting to the sender's telephone terminal;
Volume level receiving means for receiving a volume level from a telephone terminal that has received the intruder detection notification after transmitting the intruder detection notification through the detection notification transmitting means;
Comparison means for comparing the volume level of the other telephone terminal received through the volume level receiving means with the volume level of the sound collected by the microphone;
When the comparison result of the comparison means indicates that the volume level of the other telephone terminal is high, a transition notification transmission means for transmitting a transition notification to the other telephone terminal that is the transmission source of the volume level;
Transition notification receiving means for receiving the transition notification from the telephone terminal that is the transmission source of the intruder detection notification, and
When the transition notification is received through the transition notification receiving unit, the collected voice transmission unit connects a telephone line to the server device and transmits the voice collected by the microphone to the server device. A telephone system characterized by: A telephone system including a monitoring mode, comprising a server device that controls connection between one or more telephone terminals and one or more telephone terminals and a communication device connected to a communication network ,
One or more telephone terminals are
A microphone that picks up the surrounding sound in the monitoring mode;
Discrimination means for discriminating whether or not the volume level of the sound collected by the microphone exceeds a threshold;
When the determination means determines that the volume level has exceeded a threshold, a voice line is connected to the server device and a sound collected by the microphone is transmitted to the server device. Means and
With
The server device
Receiving means for receiving collected sound transmitted through a telephone line connected to the telephone terminal in the monitoring mode;
When the collected sound is received through the receiving means, a reception voice transmitting means for connecting a telephone line to a predetermined monitoring destination and transmitting the collected sound received through the receiving means to the predetermined monitoring destination When
With
The one or more telephone terminals are:
Re-partition notification receiving means for receiving a re-partition notification from the server device;
When receiving the partition again notify the through the partition again notice receiving means, and control means for controlling each section to return to the initial state when the monitor mode,
The server device
A false alarm determination notification receiving means for receiving a false alarm determination notification from the predetermined monitoring destination;
A telephone system comprising: a re-partition notification transmitting unit that transmits a re-partition notification to each of the one or more telephone terminals when the mis-report determination notification is received through the mis-report determination notification receiving unit. . A telephone system including a monitoring mode, comprising a server device that controls connection between one or more telephone terminals and one or more telephone terminals and a communication device connected to a communication network ,
One or more telephone terminals are
A microphone that picks up the surrounding sound in the monitoring mode;
Discrimination means for discriminating whether or not the volume level of the sound collected by the microphone exceeds a threshold;
When the determination means determines that the volume level has exceeded a threshold, a voice line is connected to the server device and a sound collected by the microphone is transmitted to the server device. Means and
With
The server device
Receiving means for receiving collected sound transmitted through a telephone line connected to the telephone terminal in the monitoring mode;
When the collected sound is received through the receiving means, a reception voice transmitting means for connecting a telephone line to a predetermined monitoring destination and transmitting the collected sound received through the receiving means to the predetermined monitoring destination When
With
One or more telephone terminals are
A detection notification transmission unit that transmits an intruder detection notification to the server device when the determination unit determines that the volume level exceeds a threshold;
Voice transmission request receiving means for receiving a voice transmission request from the server device;
A detection notification receiving means for receiving an intruder detection notification transmitted from the server device;
With
When the voice transmission request is received through the voice transmission request receiving unit, the voice collecting voice transmission unit connects a telephone line to the server device, and the voice collected by the microphone is transmitted to the server device. To send to
The determination means, when receiving the intruder detection notification through the detection notification receiving means, lowers the threshold and increases the determination sensitivity,
The server device
Detection notification receiving means for receiving the intruder detection notification from one or more of the telephone terminals;
When the intruder detection notification is received through the detection notification receiving unit, a voice transmission request transmission unit that transmits a voice transmission request to the telephone terminal that is the transmission source of the intruder detection notification;
Storage means for storing and holding specific information of one or more telephone terminals that should transmit an intruder detection notification for each telephone terminal that is a transmission source of the intruder detection notification;
A detection notification transmitting means for transmitting an intruder detection notification to one or more telephone terminals based on the specific information in the storage means when the intruder detection notification is received from the telephone terminal through the detection notification receiving means; A telephone system characterized by comprising. The telephone system according to claim 5 ,
One or more telephone terminals are
After receiving the intruder detection notification from the server device through the detection notification receiving means, the determination means determines that the volume level of the sound collected by the microphone exceeds a threshold, and the collected sound transmission A volume level transmitting means for transmitting the volume level to the server device when the collected sound is not transmitted through the means;
The server device
First volume level receiving means for receiving a first volume level from a telephone terminal that has not transmitted collected sound;
When the first volume level is received through the first volume level receiving unit, a transmission request for the volume level of the collected sound is transmitted to the telephone terminal that has transmitted the collected sound to the own device. A transmission request transmission means;
In response to the transmission request, second volume level receiving means for receiving a second volume level transmitted from the telephone terminal that has transmitted the collected sound to the own device;
Comparing means for comparing the first volume level and the second volume level;
When the comparison result of the comparison means indicates that the first volume level is high, a second voice transmission request is transmitted to the telephone terminal that has transmitted the first volume level. A telephone system comprising: a voice transmission request transmission unit. The telephone system according to claim 3 or 6 , wherein
The server device
A telephone system comprising path holding means for storing and holding a change state of a telephone terminal that is a transmission source of the collected voice picked up by the microphone. The telephone terminal of the telephone system comprising a monitoring mode comprising one or more telephone terminals and a server device that controls connection between the one or more telephone terminals and a communication device connected to a communication network. ,
A microphone that picks up the surrounding sound in the monitoring mode;
Discrimination means for discriminating whether or not the volume level of the sound collected by the microphone exceeds a threshold;
When the determination means determines that the volume level has exceeded a threshold, a voice line is connected to the server device and a sound collected by the microphone is transmitted to the server device. and means,
The telephone terminal according to claim 1, wherein when the sound volume level is determined to exceed a threshold value, the determination means lowers the threshold value to increase the determination sensitivity . The server device of the telephone system comprising a monitoring mode comprising one or more telephone terminals and a server device for controlling connection between the one or more telephone terminals and a communication device connected to a communication network. ,
Receiving means for receiving collected sound transmitted through a telephone line connected to the telephone terminal in the monitoring mode;
When the collected sound is received through the receiving means, a reception voice transmitting means for connecting a telephone line to a predetermined monitoring destination and transmitting the collected sound received through the receiving means to the predetermined monitoring destination equipped with a door, further
A false alarm determination notification receiving means for receiving a false alarm determination notification from the predetermined monitoring destination;
When the misinformation discrimination notification is received through the misinformation discrimination notification receiving means, a re-partition notification for controlling each part is transmitted to each of the one or more telephone terminals so as to return to the initial state in the monitoring mode. Re-partition notification sending means
Server device comprising: a.

Images