JP4689533B2 - TV interaction device - Google Patents

Description

  The present invention notifies each base of the crime prevention / surveillance situation of the police box and the jurisdiction's jurisdiction area where police officers are absent, and ensures the urgency, safety and reliability of the jurisdiction area through the network. The present invention relates to a television dialogue apparatus installed for this purpose.

  In the case of a conventional analog telephone line, the telephone mainly transmits only voice, and with the widespread use of the ISDN line, voice / image transmission over a digital line has become possible, but image data is transmitted only at a low speed. I couldn't.

  However, in recent years, with the advancement of communication technology, semiconductor technology, and optical technology, high-speed digital lines have been established, and high-speed and large-capacity data transmission has become possible. In particular, as a characteristic of digital transmission by TCP / IP, there is no need for a transmission path according to the characteristics of the media of transmission data, and media can be integrated, and transmission between different media television interactive devices is possible. became. Therefore, a large number of television interactive devices that can communicate images simultaneously with voice have appeared.

  Under such circumstances, international standardization by the ITU-T (International Telegraph and Telephone Consultative Committee) etc. has been promoted so that mutual communication between different composite TV interactive devices is possible. As AV services for telephones, video conference systems, etc., service specifications for AV services, protocol specifications, and multimedia multiplexed frame configuration specifications have been announced as ITU-T recommendations.

  Video conferencing systems and videophones are known as the main systems and devices that enable mutual communication that integrates audio and video.

  Video conferencing systems and videophones include arbitrary videoconferencing terminals at multiple points connected to a communication network, and MCUs (multipoint control units) or servers (gatekeepers, etc.) for controlling and managing the videoconferencing terminals at multiple points. A two-way communication method by controlling a video conference terminal or a video phone via an MCU or a server (gatekeeper, etc.) and a two-way communication method using a point-to-point connection between terminals. .

  In recent years, as a remote monitoring device security service, the remote monitoring service sends the status of monitoring targets such as unmanned stores to a monitoring center via a network such as a general public line, and centralized monitoring and management at the monitoring center. There is a system to do.

  As a method of switching the communication partner of image data and audio data, there is a device having a monitoring target and a camera, sending an image to a specific monitoring device or another monitoring device via a communication line, and the other monitoring device already monitoring There is a method of determining the image transmission destination and switching the image transmission destination to the specific monitoring device when receiving an image transmission request from the specific monitoring device to the monitoring device to be monitored when the target camera video is being received. (For example, refer to Patent Document 1).

  As a videophone system that relays communications to other videophone terminals, the secretarial terminal connected to the communication network and the executive terminal connected to the secretary terminal take the system configuration. There is a method in which the line is established, and the secretary terminal calls the established line to the executive terminal, establishes communication, and performs disconnection control to switch the image / sound (see, for example, Patent Document 2).

  In addition, as a crime prevention system for transferring (switching) image information at the time of abnormality, when an abnormality is detected by a monitoring device installed at home, the image is transmitted to the mobile phone TV interactive device, and the user is malicious from the received image. There is a switching method for transferring an image to an image television interactive device installed in a nearest police box or a security agency when it is determined whether the intruder is a malicious intruder (see, for example, Patent Document 3) ).

  As a distributed multipoint video conference system and a distributed multipoint conference construction method capable of setting up a video conference with a plurality of parties in a wide range of points, a video phone terminal corresponding to a video phone standard, a TCP / IP interface unit, and a general public network Consists of a distributed multipoint conference server (DMCS) having a modem interface unit, a video / audio processing unit, and a database of accommodated subscribers, and the DMCS server receives video / audio received from a videophone terminal as a protocol. Convert and send to the Internet, or video / sound synthesis processing and send. As a system configuration, there is a method in which a DMCS server establishes, holds, and disconnects communication between terminals using a database of account names and telephone numbers of subscribers to be accommodated (see, for example, Patent Document 4).

The above-described prior art has a function in which a specific monitoring device (center device) switches the communication destination of image data / audio data to a television interactive device under the system configuration in the network, and the central television interactive device communicates with a communication network. It is a client-type service that has the function of managing the establishment, maintenance, and disconnection of data and transferring voice and image data to the TV conversation device in its own site.
JP 2001-54102 A JP-A-6-141307 JP 2004-80294 A JP 2000-270308 A

  In the police box facility, if a visitor comes to the police box or police station where the police officers were not present because of patrol, the telephone set of the telephone (or videophone) installed is raised and the telephone of the jurisdiction's headquarters is called. The response form is mainly taken. As another method, there is a case where a police officer OB is arranged to cope with the absence of a police officer.

  However, as for the contents of visitors to police boxes and dispatch stations, there are many geographical guidance, transportation guidance, loss, acceptance of pick-up notifications, damage reports such as bicycle theft, etc., and telephone reception from remote centers is insufficient There are also cases.

  Moreover, when urgentness is required, the problem that a quick response cannot be considered is considered. In particular, when there is a possibility that the visitor's body may be at risk, there is a risk that the police car serving as the center base will not be in time.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and to visit visitors to police boxes (correspondents) where police officers (responders) are absent in order to quickly and accurately respond to visitors. If the visitor visits, the TV conversation device installed at the base visited by the visitor searches for another base in the vicinity of the base visited by the visitor, and installs it at the other base. It is intended to provide a videophone device that constitutes a visitor response system that can perform communication control to a TV dialogue device that is currently being used, and can quickly respond to a visitor in need of a responder at another base .

  Furthermore, the present invention provides a method for dynamically changing the communication destination of image data and audio data in a point-to-point connection between each TV interactive device without adopting a client connection configuration that requires an MCU or a server. It is intended to provide.

  The purpose of the present invention is to determine the transmission destination of image data / audio data for each TV interaction device, other than the specific monitoring device serving as the center, between TV interaction devices capable of transmitting and receiving arbitrary image data / audio data, The object is to provide a method of communicating images and sounds without waiting for visitors.

  In order to achieve the above object, the present invention is installed at a base that can be a communication partner in a television dialogue apparatus installed in a jurisdiction using a visitor detection sensor and control wear incorporated in the television dialogue apparatus. TV dialogue device information (address information, etc.) and the presence / absence information of police officers (correspondents) at each base, and information input to the television dialogue device (visitor detection sensor ON, presence / absence switch status information) ) To determine the location (television dialogue device) where communication is currently possible and the location to communicate with (the closest location), call the location to communicate, and sound the chime and turn on the indicator light. The incoming call is displayed, and voice data and image data are communicated.

  Further, when there is no call response of the communication destination base, a call is made to the next candidate base based on the presence / absence information of the base information.

  If the control means is used, an emergency response (visitor) is selected to select a police box (correspondent) closest to the base where the visitor has occurred and a police station (responder) as a communication partner. It is possible to respond quickly to the possibility of the person's body being at risk), and to improve the urgency, safety and reliability of the region.

  As described above, according to the present invention, the presence / absence information of the presence / absence switch of the location information is managed based on the presence / absence information of the location information's presence / absence switch. When the change occurs, the presence / absence information is notified to all of the other TV interactive devices in the same jurisdiction, and the presence / absence information is shared among the TV interactive devices. As a result, the visitor is selected to communicate with the police station (correspondent) closest to the base where the responder where the visitor occurred is absent and the police officer (responder) is enrolled. It becomes possible to respond quickly to the emergency response (possibility that the visitor's body is at risk), and the urgency, safety and reliability of the area can be improved.

  An outline of an embodiment of the present invention will be described. According to the present invention, in a television interaction device connected to a network and transmitting / receiving image data and audio data, a visitor detecting means for detecting that there is a visitor to the television interaction device, the television interaction device, and a communication partner Storage means for storing base information which is a state of a plurality of TV interactive devices that can be established, and when it is detected that there is a visitor in the TV interactive device, the base information is searched, and the TV interactive device and the plural Communication establishment means for establishing communication between the communication partner selection means for selecting the communication partner TV conversation apparatus and the communication partner TV conversation apparatus selected by the communication partner selection means in accordance with the base information of the communication partner television conversation apparatus of Provided with means.

  Further, the present invention is the above-described television dialogue apparatus, wherein the base information includes presence / absence information indicating whether a corresponding person in the television dialogue apparatus is present or absent, and priority indicating a priority order of connection destinations. The ranking information and the communication address of the television interactive device are stored, and the priority is the distance information from the base where the visitor was present. Further, the communication establishment means searches for the base information again when a situation in which communication with the selected communication partner cannot be established occurs, and selects and communicates with the next-priority TV conversation device as the communication partner. It is a means for establishing communication with the partner TV dialogue apparatus.

  Hereinafter, an embodiment of the present invention will be described by taking as an example the case of a television dialogue apparatus in a police box absent police box. A configuration example of a television interactive apparatus according to an embodiment of the present invention will be described with reference to FIG. The television dialogue system according to the present invention is composed of another television dialogue device 10 facing the television dialogue device 10 and a communication network (IP network) 70 connecting the two. The television interaction device 10 includes an interface control unit 11, a main control unit 12, a main memory 13, a flash memory (storage device) 14, a contact control unit 15, an audio compression control unit 16, an audio codec 17, Microphone 18, speaker 19, image encoding control unit 20, image codec 21, camera 22, monitor 23, bus 29, presence / absence switch 151 connected to contact control unit 15, and visitor detection A sensor 152 is provided. The presence / absence switch 151 and the visitor detection sensor 152 may be provided on the main body of the TV interactive device 10 or externally.

  The interface control unit 11 is an interface unit for connecting to a network such as an IP network, and has a function of performing call connection processing and transmission / reception of image / audio data with a television interactive device or an opposite television interactive device installed in the center, It also has a function of transmitting / receiving information such as presence / absence information and visitor notification information, and forms a bidirectional communication means.

  The main control unit 12 is a means on which controlware for controlling the entire TV dialogue apparatus 10 operates, and forms a communication partner selection means and a communication establishment means together with the base information list.

  The main memory 13 is a work area for storing information and operating programs of the main control unit 12. The flash memory 14 is a storage means for storing controlware, base information list, statistical information, failure log, and the like, and is managed in a primary / secondary two-sided redundant configuration. The flash memory 14 is provided with a base information list 141.

  The contact control unit 15 notifies the main control unit 12 of presence / absence information from the presence / absence switch 151 and visitor notification information (visitor detection sensor ON information) from the visitor detection sensor 152 and It is a means to control the factor. The presence / absence switch 151 is means for inputting presence / absence information, which is information indicating whether or not the police officer is in the police box, and is set to absent when the police officer makes the police box absent. The presence / absence information is set in the presence / absence information column of the base information list 141 described separately. The visitor detection sensor 152 is a sensor that detects that there is a visitor in the police box, forms a visitor detection means, and outputs visitor notification information while the visitor is in the police box or the dispatch station.

  The audio compression control unit 16 is a means for performing compression / expansion control for compressing audio data from the microphone 18 and expanding audio data from the opposite television interactive apparatus. The audio codec 17 A / D converts the analog audio signal from the microphone 18 and outputs the analog audio signal to the audio compression control unit 16, and the digital audio signal sent from the opposing TV interactive device and digitally processed in the TV interactive device. It is means for D / A converting and outputting to the speaker 19. The microphone 18 is means for inputting an analog voice of a visitor who has a requirement for a police box into the television dialogue apparatus. The speaker 19 is a means for outputting analog sound from the TV interactive device to the visitor.

  The image encoding control unit 20 is means for performing compression / decompression / encoding / decoding control of image data, and compresses image data from a camera 22 that captures scenes in a police box and a dispatching station or visitors or responders. A means for controlling the encoding and decoding / decompression of the image data from the opposing TV interactive device. The image codec 111 is a means for A / D converting the analog image signal from the camera 22 and D / A converting the digital image signal sent from the opposing TV interactive device 10B. The camera 22 is means for inputting an analog image signal to the television interactive device. The monitor 13 is a means for displaying an image of the conversation partner and various information.

  An example of the base information list 141 provided in the flash memory 14 will be described with reference to FIG. The base information list 141 includes a list number column 141, a base name column 1412, a presence / absence information column 1413, a base address book column 1414, and a priority column 1415. A list number is described in the list number column 1411. In the base name column 1412, a base name corresponding to the list number, for example, a police box name or a dispatch name is described. The presence / absence information column 1413 describes whether a police officer is present or absent at a base corresponding to the list number. In the base address book column 1414, addresses of bases (television compatible devices) corresponding to the list numbers are described. In the priority order column 1415, for example, the priority order of the transfer destinations is described in the order of bases that are closer to the base.

  By searching the base information list 141 in FIG. 2, a base that is close to the base where the visitor is detected (TV interactive device) and that is currently in use by a police officer is searched. be able to. When the TV interactive device 10 detects a visitor while the police officer is absent, the TV interactive device 10 searches the base information list 141 and makes a call to the closest compatible TV interactive device.

  According to the present invention, a method of selecting a base that is a communication candidate based on presence / absence information can quickly respond to a visitor who is in trouble because a police officer is absent from the police box. Reliability can be improved.

  When receiving the presence / absence notification from the presence / absence switch 151, the TV interactive device 10 transmits update information for updating the presence / absence information in the base information list 141 to each TV interactive device to transmit the update information. When the information list is updated and the visitor detection sensor 152 detects a visitor, the connection partner device is identified based on the presence / absence information and priority information of the base information list 141, the connection partner is determined, and the television Establish a call connection between the interactive device and the opposing television interactive device. If there is a police officer at the connection destination but cannot respond to the visitor, refer to the base information again, search the next candidate base based on the presence / absence information and priority information, and connect To establish a call connection.

  The television conversation apparatus 10A grasps the presence / absence information of the police box at the police box or dispatch station based on the presence / absence information or the visitor notification information of the presence / absence switch 151 and the visitor detection sensor 152, and the presence / absence information changes. When it occurs, the presence / absence information is notified to the other party's TV dialogue apparatus in the same jurisdiction (present / absence information notification), and the presence / absence information is shared and managed in each television dialogue apparatus.

  Each television interaction device 10 includes priority order information that determines the connection order stored in the example base information list 141. The priority order information means, for example, the distance between the TV interactive devices and is used to search for the nearest candidate base.

[Description of Operation] Regarding the operation of the television dialogue system using the television dialogue apparatus shown in FIG. 1, the base information of FIG. 2, the system image of FIG. 3, the sequence diagrams of FIGS. This will be described with reference to a flowchart.

  With reference to FIG. 3, an example of a connection image between television interactive apparatuses installed in each alternating station will be described by applying the television interactive apparatus constituting the television interactive system according to the present invention to the television interactive system in the absent police box. .

  A television dialogue system according to the present invention includes a television dialogue apparatus 10A to 10N installed in each of a plurality of police boxes 1A to 1N, and a television dialogue apparatus 10P provided in a police station 1P serving as a central monitoring unit in a jurisdiction. Each is configured to be connected to the network 70 via network devices (terminal adapters) 50A to 50N and 50P.

  The television conversation devices 10A to 10N installed in the alternating boxes 1A to 1N have the configuration of the television conversation device 10 shown in FIG. 1, and are respectively a presence / absence switch 151, a visitor detection sensor 152, and a chime / indicator light. 153 is provided. Further, the television interactive device 10P installed in the police station 1P has the same configuration as the television interactive device 10 shown in FIG. 1, but as a monitor, for example, a 4-screen display multi-display capable of displaying a 4-screen display. A decoder 231P and a chime / indicator 153P are provided.

  In the television dialogue system configured as described above, when the police officer of the police box 1A is out of the police box such as going out to patrol, the presence / absence switch 151A is set to “absent”. The TV dialogue device 10A of the police box 1A updates the presence / absence information column of its own base information list 141 with this absence information, and transmits this absence information to the other television dialogue devices. The contents of the presence / absence information column 1413 of the base information list 141 of the current site are updated.

  When there is a visitor in the police box 1A set in such a state, the visitor detection sensor 152A detects that there is a visitor, and notifies the visitor notification information to the TV conversation device 10A. The TV interactive device 10A refers to the base information list 141A, and when the presence / absence information of itself is set to “present”, the chime / indicator 152A is operated to notify the police officer of the arrival of the visitor. To do. When the presence / absence information of the base information list 141 is set to “absent”, the TV conversation device 10A has an alternating box in which the presence / absence information is set to “present” in another nearby box. For example, the police box 1B is selected, and visitor notification information indicating that there was a visitor in the police box 1A is transferred via the network 70. The police box 1B of the transfer destination of the visitor notification information rings or displays the chime / indicator lamp 153B of the TV interactive device 10B to notify the police officer at the transfer destination police box 1B that there was a visitor. The police officer of transfer destination police box 1B recognizes that there was a visitor at transfer source police box 1A, for example by ringing chime 153B, and the visitor of TV dialog device 10A and the transfer destination police officer of TV dialog device 10B Dialogue between.

  With reference to FIG. 4, a connection sequence to another TV interactive device when the visitor detection sensor 152A detects that there is a visitor at the police box 1A will be described. When the visitor detection sensor 152A detects that there is a visitor in the police box where the police officer is absent (forwarding source police box) 1A and notifies the TV dialogue apparatus 10A of the visitor notification information (S1), the TV dialogue apparatus 10A 2 recognizes that the user is absent by referring to the base information list 141 shown in FIG. 2, and the presence / absence information is “present” and the priority shown in the priority information column 1415 is high. The television interaction device 10B is recognized and selected as a transfer destination television interaction device, and visitor notification information is transmitted to the television interaction device 10B via the network 70 (S3).

  The transfer destination TV dialogue apparatus 10B that has received the visitor notification information displays the arrival of the visitor notification information on the chime / indicator 153B (S4), and the transfer destination police officer responds to the transfer source TV. A call is made to the interactive apparatus 10A via the network 70 (S5). When the transfer source TV interactive device 10A responds to this call (S6), the audio / video communication between the transfer source TV interactive device 10A and the transfer destination TV interactive device 10B is connected (S7). When the visitor responds with the TV dialogue apparatus 10A, a dialogue using voice and images can be performed between the visitor and the transfer destination police officer substituted for the police officer of the absent police box.

  On the other hand, there may be a case in which the visitor of the transfer source television compatible device 10A cannot respond to the visitor even when the police officer of the transfer destination police box 1B is present. The flow of the transfer handling process in such a situation (including the occurrence of a network failure or a device failure during communication with another TV interactive device) will be described with reference to FIG. When the visitor detection sensor 152A detects that there is a visitor in the police box where the police officer is absent (forwarding source police box) 1A and notifies the TV dialogue apparatus 10A of the visitor notification information (S1), the TV dialogue apparatus 10A Recognizes that it is set to “absent” with reference to the base information list 141 shown in FIG. 2, and the presence / absence information is “present” and the priority indicated in the priority information column 1415 Recognizing the high-frequency TV interactive device (transfer destination TV interactive device) 10B and notifying the transfer destination TV interactive device 10B of the visitor notification information (S3). The transfer destination TV interactive device 10B displays the arrival of the visitor notification information on the chime / indicator 153B (S4). However, if a police officer is present at the transfer destination police box 1B and cannot respond to the arrival of the visitor notification information for some reason, the transfer source TV interactive device 10A transfers the transfer destination TV response device. The response from 10B cannot be detected (S10).

  When the transfer source TV compatible device 10A does not detect a call (response) from the transfer destination TV interactive device 10B within an arbitrarily set time after transmitting the visitor notification information, the transfer source TV compatible device 10A searches the base information list 141 again. Then, the TV dialogue apparatus 10C having the police officer in the middle and having the next highest priority is selected as the transfer destination TV interaction apparatus (S11), and the visitor notification information is transferred to the transfer destination TV interaction apparatus 10C (S12). .

  The transfer destination TV interactive device 10C displays the arrival of the visitor notification information on the chime / indicator lamp 153B (S13), and the transfer destination police officer responds to the network 70 to the transfer source TV interactive device 10A. The call is made via (S14). When the transfer source TV interactive device 10A responds to this call (S15), the audio / video communication between the transfer source TV interactive device 10A and the transfer destination TV interactive device 10C is connected (S16). When the visitor responds with the dialogue apparatus 10A, a dialogue using voice and images can be performed between the visitor and the transfer destination police officer who substitutes for the police officer of the absent police box.

  A method of sharing the presence / absence information in the base information list 141 between the TV interaction apparatuses when there is a change in the presence / absence information in any TV interaction apparatus will be described with reference to FIG. When a police officer present in any police box or dispatching station (eg, the TV dialogue apparatus 10A) is absent due to patrolling or the like, the absent police officer sets the presence / absence switch 151A from “present” to “absent” ”To notify the TV conversation device 10A of the absence information (S21). The TV dialogue apparatus 10A refers to the site information list 141, and first transfers the presence / absence information to the TV dialogue device 10B that is the highest priority site (S22). The TV dialogue apparatus 10B updates the information in its own base information list 141B based on the received presence / absence information (S23), and notifies the TV dialogue apparatus 10A of the presence / absence information update completion notification when the update is completed. (S24). Next, the TV interactive device 10A transfers the presence / absence information to the TV interactive device 10C which is the next highest priority base (S25). Based on the received presence / absence information, the TV interactive device 10C updates the information in its own base information list 141C (S26), and when the update is completed, notifies the TV interactive device 10A of the presence / absence information update completion notification. (S27). Similarly, the TV interaction device 10A sequentially transfers the presence / absence information to the TV interaction devices 10C to 10N (S28), and updates the base information list 141 in each TV interaction device (S29). An information update completion notification is sent to the TV interactive device 10A (S30), and the sharing process of the presence / absence information update ends. When the police officer returns to the TV dialogue apparatus 10A set to “absent”, the presence / absence information is shared by each TV dialogue apparatus by setting the presence / absence switch 151 to “present” in the same manner. be able to.

  With reference to the flowchart of FIG. 7, transfer processing in the absence in the television conversation system according to the present invention will be described. The connection start request between the TV interactive devices starts by detecting that the output of the presence / absence switch 151 or the visitor detection sensor 152 is input, and this input is the output of the visitor detection sensor 152 or the police. It is determined whether the output is from the government presence / absence switch 151 (S31). When it is the output of the visitor detection sensor 152 (YES), the base information list 141 is referred to (S32), and it is determined whether a police officer is present in a nearby (high priority) police box or dispatching station. (S33). In the case of YES in step S33, the notification information of the visitor is notified to the transfer destination television interactive device 10B (S34). Upon receiving the visitor notification information, the transfer destination TV dialogue apparatus 10B notifies the police officer serving as the attendant that the chime rings or the indicator lamp is turned on (S38). A call is made to 10A (S39). The transfer source TV interactive device 10A that has transferred the visitor notification information to the transfer destination TV interactive device 10B in step S34 monitors whether there is a call (call) from the transfer destination TV interactive device 10B (S35). If there is (YES), a response is returned to the transfer destination TV interactive device 10B (S40).

  If the call (calling) is not returned in step S34 (NO), the site information list 141 is referenced to search again for the next candidate for the transfer destination (alternate: TV interactive device), and the next candidate. It is determined whether or not the base to be present has presence information (S36). If there is presence information in the alternate candidate that is the next candidate in step S37 (YES), the process proceeds to step S34, and the visitor notification information is transferred to the new transfer destination television dialogue apparatus 10C (not shown). In step S36, if there are a large number of absent bases that do not have the presence information and there is no base that can be the next candidate (NO), the system is installed in the police station serving as the center so that no respondent is present systematically. The center television interactive device 10P (not shown) is selected (S37), a call is made to the center television interactive device 10P (S34), and the visitor is dealt with.

  In step S40, the transfer-source TV interactive device 10A connected to the transfer-destination TV interactive device 10B performs transmission / reception of voice data / image data between the transfer-destination TV interactive device 10B and the device (S41). Provides remote response to visitors. When urgent is required, the police officer of the transfer destination dispatches to the corresponding base (the police box with the transfer source TV interactive device 10A) to deal with it.

  The transfer source TV interactive device 10A monitors the output of the visitor detection sensor 152A, that is, the OFF of the visitor notification information (S42), and detects the output OFF (YES). Is output OFF (S43), it is determined whether or not there is a call disconnection instruction from the transfer destination TV interactive device 10B (S47). If there is a call disconnection instruction (YES), a call disconnection response is sent to the transfer destination TV interactive device 10B. (S48), the call is disconnected and the dialog with the visitor is terminated. In step S42, the transfer source TV interactive device 10A determines that there is a call disconnection instruction when it does not detect an output OFF of the visitor detection sensor (NO), and proceeds to step S47. Returns to step S42 and monitors the output OFF of the visitor detection sensor.

  On the other hand, the transfer destination TV interactive device 10B determines whether or not the visitor detection sensor output in step S43 is OFF (visitor notification information is OFF) (S44). When it is finished (YES), a call connection disconnection instruction is issued to the transfer source TV interactive device 10A (S46). If the visitor detection sensor output is OFF in step S44 (YES), the transfer destination TV interactive device 10B sends a call connection disconnection instruction to the transfer source TV interactive device 10A (S46). In step S45, if the visitor response does not end (NO), the response to the visitor is continued, and it is continuously monitored whether the visitor sensor output is OFF in step S44. In step S46, after the call connection disconnection instruction is completed, the call disconnection response is received from the transfer source TV interactive device 10A, the call is disconnected, and the dialog with the visitor is ended.

  The presence / absence information sharing process when the detected input is the output of the presence / absence switch 151 in step S32 in FIG. 7 will be described with reference to FIG. When the input is the presence / absence information from the presence / absence switch 151, presence / absence management information is generated from the contents (S51), and the presence / absence information (telephone conversation devices 10B to 10N) is present ( After the presence / absence information transfer is performed, each of the TV interactive devices 10B to 10N that has received the presence / absence information transfer updates the presence / absence information by reflecting the received information in the internal base information list (S52). The presence / absence management information (present / absent information update completion) is sent back to the TV interactive device 10A (S53, S54), and the update process is completed. The transmission source TV interactive device 10A monitors whether the presence / absence information transfer to each TV interactive device has been completed (S55), and the update processing ends when the update from each site is completed (YES).

  In the above description, the example in which the television dialogue apparatus according to the present invention is applied to the police has been described. However, the present invention is not limited to this, and when there is a visitor at a base where the responder is absent, The present invention can be applied to a system that requires handling.

The system block diagram explaining the outline | summary of a structure of the television interactive apparatus in the television interactive system to which the multipoint communication method concerning this invention is applied. The figure explaining the example of a display of the base information list in this invention. The figure explaining the image of the television dialogue system in this invention. The sequence diagram explaining the connection sequence at the time of normal in this invention. The sequence diagram explaining the re-transfer connection sequence when the response | compatibility in the transfer destination in this invention cannot be performed. The sequence diagram explaining the presence / absence information transfer sequence in this invention. The flowchart explaining the flow of a process between this invention television dialog apparatuses. The flowchart explaining the presence / absence information transfer process in this invention.

Explanation of symbols

152: Visitor detection sensor, 10: TV conversation device, 11: Interface control unit, 12: Main control unit, 13: Main memory, 14: Flash memory, 141: Base information list, 15: Contact control unit, 151: Present / absent switch, 152: visitor detection sensor, 153: chime / indicator, 16: audio compression control unit, 17: audio codec, 18: microphone, 19: speaker, 20: image encoding device, 21: image codec , 22: camera, 23: monitor, 29: bus, 50: network device, 70: network.

Claims (3)

In a TV interactive device that connects to a network and transmits and receives image data and audio data,
A visitor detection means for detecting that there is a visitor to the television interactive device;
Storage means for storing base information which is a state of a plurality of television interactive devices that can be the television interactive device and a communication partner;
When it is detected that there is a visitor in the TV interactive device, the base information is searched, and the communication partner TV interactive device is set according to the base information of the TV interactive device and the plurality of communication partner TV interactive devices. A communication partner selection means to select;
Communication establishment means for establishing communication with the communication partner television dialogue apparatus selected by the communication partner selection means;
A TV dialogue device characterized by comprising: The base information includes presence / absence information indicating whether the corresponding person in the TV interactive device is present or absent, priority information indicating the priority of the connection destination, and a communication address of the TV interactive device. Remembered,
The television dialogue apparatus according to claim 1, wherein the priority order is distance information from a base where a visitor has visited. The communication establishment means searches for the base information again when a situation in which communication with the selected communication partner cannot be established occurs, selects the next-priority television conversation device as the communication partner, and communicates with the communication partner. The television interactive device according to claim 1, wherein the communication device establishes communication with the television interactive device.

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