JP2007208533A - Interphone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interphone system provided with an identification function for a suspicious individual such as a robber and an alarm function for the identification. <P>SOLUTION: A radio transmitting part 110 transmits by radio to a radio receiving part 401 of a management server a video image which is picked up by a camera 104 of an entrance slave unit 1 that detects a calling operation by a person existing in an entrance or a video recording request from the management server 4 and is a video signal compressed via a compressing part 105 and subsequently stored in a slave unit storing part 106. In addition, a comparing part 405 of the management server compares a video signal stored in a storing part 403 after being received via the radio receiving part with face data of an unwanted dubious person such as a robber stored in a face data storing part 404 in advance, and when the comparison results coincide, notifying parts 201 and 205 of a living room master unit 2 and notifying parts 406 and 407 of the management server respectively output an alarm. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an interphone system, and more particularly, to an interphone system provided with a function for identifying an undesirable suspicious person such as a thief and a notification function for the identification.

  Conventionally, as this type of intercom system, there has been disclosed an emergency call device capable of specifying a reporter who has performed an emergency call operation and a report location in an emergency (see, for example, Patent Document 1).

  According to this emergency call device, wireless network terminals constituting a wireless network are mounted on a plurality of slave units, respectively, so that when the notification data is received at this wireless network terminal, a multi-hop connected wireless network The notification data can be sequentially transferred to the wireless network terminal of the slave unit via the wireless communication terminal, and the notification can be sent from the wireless network terminal of the shortest transfer path measured in advance to a predetermined reporting organization. In addition, the slave unit that first receives the report data from the reporter who performed the emergency call operation can emit a notification sound by the interphone master unit connected to the slave unit. Furthermore, the slave unit that first receives the report data from the reporter who performed the emergency call operation can take a picture of the reporter with the camera, and this image is displayed on the interphone master unit.

Japanese Patent Laying-Open No. 2005-79687 (paragraph numbers “0031” to “0060”, FIGS. 1 and 2)

  However, according to the emergency notification device of Patent Document 1 described in the background art, it is possible to identify the person who performed the call operation, but if this person is an undesired suspicious person such as a thief, it can be controlled. could not.

  The present invention has been made to solve this difficulty, such as a call operation by a person at the entrance or a video of a person captured by a camera of an entrance slave that detects a recording request from a management server, a thief, and the like. It is an object of the present invention to provide an intercom system with improved crime prevention performance by collating with face data of an undesired suspicious person and issuing a warning if they match.

  In order to achieve the above-described object, an interphone system according to a first aspect of the present invention is configured to notify an entrance cordless handset having a camera and a call from a person who has performed a call operation on the entrance cordless handset. A living room base unit is provided that has a monitor that displays the captured video and establishes a call in response to the call. The entrance slave unit includes a compression unit for compressing video captured by the camera, a slave unit storage unit for recording the compressed video, and wireless transmission for wirelessly transmitting the recorded video signal. And a management server having a wireless reception unit for wirelessly receiving the video signal transmitted from the wireless transmission unit and a storage unit for recording the received video signal. Yes.

  In addition, the intercom system according to the second aspect of the present invention is configured to notify an entrance slave unit having a camera and a call from a person who has performed a call operation at the entrance slave unit, and display an image captured by the camera. And a management server having a wireless transmission unit for wirelessly transmitting a recording request signal to the entrance slave unit. Yes. The entrance slave unit includes a compression unit for compressing video captured by the camera, a slave unit storage unit for recording the compressed video, and wireless transmission for wirelessly transmitting the recorded video signal. Unit, a wireless receiver for wirelessly receiving a recording request signal, and a slave CPU for wirelessly transmitting a video signal recorded according to the received recording request signal by a wireless transmitter Is.

  The interphone system according to the third aspect of the present invention is the interphone system according to the first aspect or the second aspect of the present invention, wherein the management server stores the face data of an undesired suspicious person such as a thief in advance. Notifying that the contents of the comparison result of the storage unit, the comparison unit for comparing the video signal stored in the storage unit and the face data stored in the face data storage unit, and the comparison performed in the comparison unit are the same And a notification unit for performing the operation.

  The interphone system according to the fourth aspect of the present invention is the intercom system according to the third aspect of the present invention, wherein the management server sends a control signal indicating that the contents of the comparison performed by the comparison unit match each other. The wireless transmission part for transmitting to is provided. The entrance cordless handset includes a wireless reception unit for wirelessly receiving a control signal transmitted from the wireless transmission unit of the management server. The room master unit includes a notification unit for receiving a control signal and notifying that the contents of the comparison performed by the comparison unit of the management server match.

  The interphone system according to the fifth aspect of the present invention is the interphone system according to the third aspect of the present invention, wherein the management server sends a control signal indicating that the contents of the comparison performed by the comparison unit match to an external device. A transmission / reception unit for transmission is provided.

  According to the intercom system of the present invention, after being compressed through the compression unit, the image is picked up by the camera of the entrance slave unit that detects the call operation by the person at the entrance or the recording request from the management server. The video signal stored in the slave unit storage unit can be transmitted wirelessly from the wireless transmission unit to the wireless reception unit of the management server. In addition, in the comparison unit of the management server, the video signal stored in the storage unit after being received via the wireless reception unit and the face data of an undesired suspicious person such as a thief stored in the face data storage unit in advance If the comparison results match, the alarm can be issued by the notification unit of the living room master unit, the external device, and the notification unit of the management server.

  As a result, especially for persons (employees) such as a security company and a management company who can confirm the alarm notification on the management server, it is possible to go to the entrance and quickly control the suspicious person, thereby improving crime prevention. In addition, for residents who are in the room in the dwelling unit, it is possible to respond only when it is confirmed that the person at the entrance that performed the call operation is not a suspicious person such as a thief, and the crime prevention property at the time of response is Enhanced.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments to which an intercom system of the invention is applied will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a specific configuration of an intercom system according to an embodiment of the present invention.

  In the intercom system shown in FIG. 1, wired communication is performed between the entrance cordless handset 1 installed at the entrance and the entrance cordless handset 1 installed in the dwelling unit and connected via the cordless handset / master phone line L1. For example, an external device 3 for making a report to a mobile phone, a portable information terminal, etc. carried by a resident who is out of the house, and an entrance cordless handset 1 Management server installed in a security company, a management company, etc. for performing wireless communication with the external device 3 and wired communication with the external device 3 connected via the server / external device line L2, respectively. 4 are provided.

  Further, the entrance slave unit 1 includes an operation unit (hereinafter referred to as a slave unit operation unit) 100, a microphone (hereinafter referred to as a slave unit microphone) 101, a speaker (hereinafter referred to as a slave unit speaker) 102, and a communication unit ( Hereinafter, it is referred to as a slave unit call unit) 103, a camera 104, a compression unit 105, a storage unit (hereinafter referred to as a slave unit video storage unit) 106, an expansion unit 107, a modulation unit 108, and a transmission / reception unit (hereinafter referred to as a slave unit transmission / reception unit). 109, a wireless transmission unit (hereinafter referred to as a slave unit wireless transmission unit) 110, a wireless reception unit (hereinafter referred to as a slave unit radio reception unit) 111, an antenna (hereinafter referred to as a slave unit antenna) 112, and a CPU. (Central Processing Unit, hereinafter referred to as slave CPU) 113 is provided.

  In this entrance cordless handset 1, the operation unit 100 is operated by a person at the entrance, for example, a visitor, to call a resident in the room. As this operation part 100, a call button, a touch panel, etc. are suitable, for example.

  The handset microphone 101 and handset speaker 102 are used to input / output (send / receive) call voice when a person who has performed a call operation establishes a call with a resident.

  The slave unit call unit 103 is a voice signal that is input / output (transmitted / received) by the slave unit microphone 101 and the slave unit speaker 102 and is converted into an electrical signal. / 4 line conversion, amplification, etc.

  The camera 104 is for capturing an image of the person who performed the calling operation and an image near the entrance. As the camera 104, for example, various image sensors such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS) are suitable.

  The compression unit 105 is for compressing a video signal that has been captured by the camera 104 and that has been processed into an electrical signal.

  The subunit | mobile_unit image | video memory | storage part 106 is for memorize | storing the video signal compressed via the compression part 105. FIG. For example, various types of storage media such as a RAM (Random Access Memory) and an EEPROM (Electrically Erasable Programmable Read-Only Memory) are suitable for the child device video storage unit 106.

  The decompression unit 107 is for decompressing the video signal stored in the slave unit video storage unit 106.

  The modulation unit 108 is for FM (Frequency Modulation) modulation of the video signal expanded via the expansion unit 107.

  The slave unit transmission / reception unit 109 includes a signal transmission path (speech path) between the slave unit call unit 103 and the slave unit / base unit line L1, a signal transmission path from the modulation unit 108 to the slave unit / base unit line L1, and a slave unit This is for forming a signal transmission path between the CPU 113 and the slave unit / master unit line L1.

  The subunit | mobile_unit radio | wireless transmission part 110 is for performing a signal process so that the video signal memorize | stored in the subunit | mobile_unit video storage part 106 may be converted into a radio signal.

  The slave radio receiver 111 is for performing signal processing so as to convert a recording request signal of a radio signal received via the slave antenna 112 into an electric signal.

  The slave unit antenna 112 is for forming a wireless signal transmission path between the slave unit wireless transmission unit 110 and the slave unit wireless reception unit 111 and the antenna 402 described later of the management server 4. As this subunit | mobile_unit antenna 112, a diversity antenna etc. are suitable, for example.

  The slave CPU 113 is for controlling each component of the entrance slave.

  Further, the living room base unit 2 includes an operation unit (hereinafter referred to as a “base unit operation unit”) 200, a speaker (hereinafter referred to as a “base unit speaker”) 201, a microphone (hereinafter referred to as a “base unit microphone”) 202, and a communication unit ( Hereinafter, the base unit call unit 203), demodulation unit 204, monitor (hereinafter referred to as base unit monitor) 205, transmission / reception unit (hereinafter referred to as base unit transmission / reception unit) 206, CPU (hereinafter referred to as base unit CPU). ) 207.

  In this living room master unit 2, the master unit operation unit 200 is stored in the operation for the resident to respond to a call from the entrance slave unit 1 by a person at the entrance or in the slave unit video storage unit 106 of the entrance slave unit 1. A picture output operation or the like is performed to read the recorded video and cause the master monitor 205 to output the picture. As the parent device operation unit 200, for example, a call button, a recording / playback button, a touch panel, and the like are preferable.

  The main unit speaker 201 emits a ringing sound or a voice message indicating that there is a call from the front cordless handset 1 by a person at the entrance, and at the time of establishing a call with the person at the front of the resident. This is for outputting (receiving) call voice. In addition to the above-described call notification function, the master speaker 201 is configured to output an alarm sound to that effect when a match is detected as a result of comparison performed by the comparison unit 405 of the management server 4 described later. A voice message or the like can be sounded.

  The base unit microphone 202 is used to input (send) call voice when a resident establishes a call with a person at the entrance.

  The base unit call unit 203 is a voice signal that is input / output (transmitted / received) by the base unit microphone 202 and the base unit speaker 201 and is converted into an electrical signal, for example, 4-line / 2-line conversion, 2-line / 4 line conversion, amplification, etc.

  The demodulator 204 is for demodulating the FM-modulated video signal transmitted from the front door 1.

  Based on the video signal demodulated via the demodulator 204, the master monitor 205 captures an image captured by the camera 104 of the entrance slave 1, that is, an image of a person at the entrance or the vicinity of the entrance It is intended to display the video. As the master monitor 205, for example, various displays such as an LCD (Liquid Crystal Display) and an organic EL (Electro Luminescence) display are suitable. In addition to the video output function described above, the master monitor 205 includes a comparison message 405 or a comparison unit 405 of the management server 4 to be described later, such as a call message or picture data indicating that there is a call from the entrance slave unit 1 by a person at the entrance. When a match is detected as a result of the comparison performed in step, an alarm message, picture data, or the like to that effect can be displayed.

  The base transceiver unit 206 includes a signal transmission path (speech path) between the base unit call unit 203 and the handset / base unit line L1, a signal transmission path from the handset / base unit line L1 to the demodulation unit 204, and the base unit This is for forming a signal transmission path between the CPU 207 and the slave unit / master unit line L1.

  The base unit CPU 207 is for controlling each part of the room base unit.

  Further, the management server 4 includes a wireless transmission unit (hereinafter referred to as server wireless transmission unit) 400, a wireless reception unit (hereinafter referred to as server wireless reception unit) 401, an antenna (hereinafter referred to as server antenna) 402, and a storage. Unit (hereinafter referred to as server video storage unit) 403, face data storage unit 404, comparison unit 405, speaker (hereinafter referred to as server speaker) 406, monitor (hereinafter referred to as server monitor) 407, transmission / reception unit (hereinafter referred to as “server speaker”). A server transmission / reception unit) 408 and a CPU (hereinafter referred to as a server CPU) 409 are provided.

  In the management server 4, the server wireless transmission unit 400 is for performing signal processing so as to convert the recording request signal of the electrical signal generated by the server CPU 409 into a wireless signal.

  The server wireless reception unit 401 is for performing signal processing so as to convert a video signal of a wireless signal received via the server antenna 402 into an electrical signal.

  The server antenna 402 is for forming a wireless signal transmission path between the server wireless transmission unit 400 and the server wireless reception unit 401 and the child device antenna 112 of the front door device 1. As this server antenna 402, for example, a diversity antenna is suitable.

  The server video storage unit 403 is for storing a video signal received via the server wireless reception unit 401. As the server video storage unit 403, for example, various storage media such as RAM and EEPROM are suitable.

  The face data storage unit 404 stores the suspicious person's face data in advance in order to discriminate an undesirable suspicious person such as a thief. As the face data storage unit 404, for example, various storage media such as RAM and EEPROM are suitable.

  The comparison unit 405 is for comparing the video signal read after being read from the server video storage unit 403 and the face data of the suspicious person stored in advance in the face data storage unit 404.

  The server speaker 406 is used to sound an alarm sound, a voice message, or the like when a match is detected as a result of the comparison performed by the comparison unit 405.

  The server monitor 407 is used to display a warning message, picture data, or the like indicating that a match is detected as the result of the comparison performed by the comparison unit 405. As the server monitor 407, for example, various displays such as an LCD and an organic EL display are suitable.

  The server transmission / reception unit 408 is for forming a signal transmission path between the server CPU 409 and the server / external device line L2.

  The server CPU 409 is for controlling each component of the management server.

  Note that illustration and description of a specific configuration of the external device 3 are omitted.

  In the intercom system according to the embodiment of the present invention configured as described above, a specific operation will be described below.

  When a person at the entrance performs a predetermined call operation (not described in detail) using the handset operation unit 100 of the front handset 1, a handset CPU 113 that detects this operation generates a call signal. . Further, the call signal generated by the slave CPU 113 is transmitted to the master CPU 207 via the slave transmitter / receiver 109, the slave / parent device line L 1, and the master transmitter / receiver 206 of the room master 2.

  When the master CPU 207 of the parent room 2 detects the transmitted call signal, it confirms that there is a call from the front cordless handset 1 by a person at the entrance, and generates a ringing sound or a voice message to that effect. In addition, sound can be emitted from the master speaker 201, and a call message or picture data having the same contents can be generated and displayed on the master monitor 205, so that a call notification can be performed. Further, the base unit CPU 207 can supply DC power supplied to the base unit as an operating power source to each component of the entrance unit 1 (not described in detail).

  Next, in the entrance cordless handset 1 that receives power from the DC power source from the living room base unit 2 as an operating power source, the camera 104 starts capturing an image of the person who performed the calling operation and an image near the entrance. The video imaged by the camera 104 is processed into a video compression signal via the compression unit 105 and then temporarily stored in the slave unit video storage unit 106. The compressed video signal stored in the slave unit video storage unit 106 is decompressed via the decompression unit 107 and then transmitted to the modulation unit 108 and also transmitted to the slave unit wireless transmission unit 110.

  The modulation unit 108 of the entrance cordless handset 1 performs FM modulation on the transmitted signal into a video modulation signal, and then sends the handset sending / receiving unit 109, the handset / base unit line L1, and the base unit sending / receiving unit 206 of the room base unit 2. The data is sent to the demodulator 204 via. The slave unit wireless transmission unit 110 performs signal processing on the transmitted video compression signal into a wireless signal, and then wirelessly transmits the signal from the slave unit antenna 112 to the server antenna 402 of the management server 4.

  The demodulator 204 of the base unit 2 demodulates the transmitted video modulation signal and sends it to the base unit monitor 205, so that the video imaged by the camera 104 of the front door unit 1, that is, the call operation is performed. The image of the person who went and the image near the entrance can be displayed on the master monitor 205.

  The server wireless reception unit 401 of the management server 4 performs signal processing of a video compression signal, which is a wireless signal received via the server antenna 402, into an electrical signal, and then temporarily stores it in the server video storage unit 403.

  The comparison unit 405 of the management server 4 compares the decompressed video signal, which is a compressed video signal stored in the server video storage unit 403, with the suspicious person's face data stored in advance in the face data storage unit 404, The result of the comparison is sent to the server CPU 409.

  When the server CPU 409 of the management server 4 detects a match as the content of the comparison performed by the comparison unit 405, the person who performed the call operation at the child device operation unit 100 of the front door device 1 is a thief or the like. The server monitor 407 generates an alarm sound or voice message to that effect and causes the server speaker 406 to sound, and also generates an alarm message or picture data having the same contents. The alarm can be issued by displaying on the screen. In addition, the server CPU 409 generates a control signal (hereinafter referred to as a first control signal) indicating that the contents of the comparison match. The first control signal is transmitted from the server CPU 409 to the external device 3 via the server transmission / reception unit 408 and the server / external device line L2, and is also transmitted to the server wireless transmission unit 400.

  When the external device 3 detects the transmitted first control signal, the external device 3 confirms that the person who has performed the calling operation at the slave unit operation unit 100 of the entrance slave unit 1 is an undesirable suspicious person such as a thief. It is possible to make a report to a mobile phone, a portable information terminal or the like.

  The server wireless transmission unit 400 of the management server 4 performs signal processing on the transmitted first control signal into a wireless signal, and then wirelessly transmits it from the server antenna 402 to the child device antenna 112 of the front door device 1.

  The cordless handset wireless receiver 111 of the entrance cordless handset 1 processes the first control signal, which is a wireless signal received via the handset antenna 112, into an electrical signal. This first control signal is transmitted from the slave unit wireless reception unit 111 to the slave unit CPU 113, the slave unit transmission / reception unit 109, the slave unit / master unit line L 1, and the master unit transmission / reception unit 206 of the living room master unit 2. Is transmitted.

  When the master unit CPU 207 of the living room master unit 2 detects the transmitted first control signal, the person at the entrance that has performed the calling operation at the slave unit operation unit 100 of the entrance slave unit 1 is not preferable such as a thief. By confirming that the person is a suspicious person and sounding an alarm sound or voice message to that effect from the main unit speaker 201 and displaying an alarm message or picture data having the same contents on the main unit monitor 205, an alarm is issued. Notification can be made.

  As is apparent from the above description, a warning is given that the person at the entrance that has performed a call operation at the slave unit operation unit 100 of the entrance slave unit 1 is an undesirable suspicious person such as a thief. The external device 3 and the management server 4 can respectively issue a report. As a result, in particular, for a security company, management company, or other person (employee) who can confirm the alarm notification on the management server 4, it is possible to go to the entrance and quickly control the suspicious person, thereby improving crime prevention. .

  In addition, for a resident in a room in a dwelling unit, only when it is confirmed that the person at the entrance that has performed a call operation at the handset operation unit 100 of the entrance handset 1 is not a suspicious person such as a thief. It can respond and the crime prevention property at the time of a response is improved.

  Next, when recording the video around the entrance where the entrance cordless handset 1 is installed, the user of the external device 3, the use of a mobile phone or a portable information terminal that has received / confirmed a report from the external device The server CPU 409 that has detected a predetermined recording request operation (not detailed) by the user of the management server 4 generates a recording request signal and sends it to the server wireless transmission unit 400.

  The server wireless transmission unit 400 of the management server 4 performs signal processing on the transmitted recording request signal into a wireless signal, and then wirelessly transmits it from the server antenna 402 to the child device antenna 112 of the front door device 1.

  The slave unit wireless reception unit 111 of the entrance slave unit 1 processes the recording request signal, which is a radio signal received via the slave unit antenna 112, into an electrical signal. This recording request signal is sent from the slave unit wireless reception unit 111 to the slave unit CPU 113.

  When detecting the transmitted recording request signal, the slave CPU 113 of the entrance slave 1 stores the video compression signal captured by the camera 104 and compressed via the compression unit 105 in the slave unit video storage unit 106. That is, it can be recorded. The compressed video signal stored in the slave unit video storage unit 106 is sent to the slave unit wireless transmission unit 110.

  The slave unit wireless transmission unit 110 of the entrance slave unit 1 performs signal processing on the transmitted video compression signal to a wireless signal, and then wirelessly transmits it from the slave unit antenna 112 to the server antenna 402 of the management server 4.

  The server wireless reception unit 401 of the management server 4 performs signal processing of a video compression signal, which is a wireless signal received via the server antenna 402, into an electrical signal, and then temporarily stores it in the server video storage unit 403.

  The comparison unit 405 of the management server 4 compares the decompressed video signal, which is a compressed video signal stored in the server video storage unit 403, with the suspicious person's face data stored in advance in the face data storage unit 404, The result of the comparison is sent to the server CPU 409.

  When the server CPU 409 of the management server 4 detects a match as a result of the comparison performed by the comparison unit 404, the recorded video person stored in the slave unit video storage unit 106 of the entrance unit 1 is recorded. Confirming that the suspicious person is a thief or the like, generating an alarm sound or voice message to that effect and causing the server speaker 406 to ring, and sending the same alarm message or picture data to the server monitor 407 By displaying it, an alarm can be issued. In addition, the server CPU 409 generates a control signal (hereinafter, referred to as a second control signal) indicating that the contents of the comparison match. The second control signal is transmitted to the external device 3 and the parent device CPU 207 of the living room parent device 2 via the same signal transmission path as that of the first control signal.

  When the external device 3 detects the transmitted second control signal, the external device 3 confirms that the person in the recorded video stored in the child device image storage unit 106 of the entrance child device 1 is an undesired suspicious person such as a thief. It is possible to confirm and report to a mobile phone, a portable information terminal or the like.

  When the master unit CPU 207 of the living room master unit 2 detects the transmitted second control signal, the person in the recorded video stored in the slave unit video storage unit 106 of the front door slave unit 1 is an undesirable suspicious person such as a thief. The main unit speaker 201 sounds a warning sound or voice message to that effect, and displays a warning message or picture data having the same contents on the main unit monitor 205, thereby generating an alarm. Information can be made.

  As is apparent from the above description, a warning about the person in the recorded image stored in the child image storage unit 106 of the entrance child device 1 being an undesirable suspicious person such as a thief is provided. 2 and can be issued by the external device 3 and the management server 4 respectively. As a result, in particular, for a security company, management company, or other person (employee) who can confirm the alarm notification on the management server 4, it is possible to go to the entrance and quickly control the suspicious person, thereby improving crime prevention. .

  Further, a resident, a security company, a management company or other person (employee) who has returned home from the outside of the house uses the master unit operation unit 200 of the living room master unit 2 to perform a predetermined reproduction operation (not detailed). )), The video (video compression signal) read out from the slave unit video storage unit 106 under the control of the slave unit CPU 113 of the entrance slave unit 1 that detected this operation is displayed on the master unit monitor 205 and is suspicious. Can also be confirmed.

  In addition, according to the operation | movement to the above-mentioned, as the timing which transmits the video recording request signal produced | generated in server CPU409 of the management server 4 to the subunit | mobile_unit CPU113 of the entrance subunit | mobile_unit 1, the surroundings of the entrance where the subunit | mobile_unit 1 was installed When recording a nearby video, a predetermined recording request operation by a user of the external device 3, a user of a mobile phone or a personal digital assistant receiving or confirming a report from the external device, or a user of the management server 4 Although the case where (not described in detail) is performed has been described, it is not limited to this timing. For example, as described above, at the timing after confirming the alarm notification that the person at the entrance that performed the call operation in the slave unit operation unit 100 of the entrance slave unit 1 is an undesirable suspicious person such as a thief. In this case, the image of the suspicious person may be stored (recorded) in the child device image storage unit 106 of the entrance child device 1.

  The intercom system of the present invention has been described with a specific embodiment. However, the present invention is not limited to this embodiment, and any interphone system having any known configuration can be used as long as the effect of the present invention is achieved. It goes without saying that can also be adopted. For example, when a single entrance cordless handset 1 and a single living room base phone 2 are provided as a single unit, when a plurality of such units are provided, they are received by the server wireless reception unit 401 of the management server 4. The video signal (video compression signal) may be scanned (scanned reception) by dividing the plurality of front door units 1, 1,... At predetermined time intervals.

The block diagram which shows the concrete structure of the intercom system by the Example of this invention.

Explanation of symbols

1 …… Gate unit 104 …… Camera 105 …… Compression unit 106 …… Slave unit image storage unit (Slave unit storage unit)
110 …… Slave unit wireless transmitter (wireless transmitter)
111 …… Slave unit wireless receiver (wireless receiver)
113 …… Slave CPU
2 …… Home unit 201 …… Parent unit speaker (notification unit)
205 …… Master monitor (monitor, notification unit)
3 …… External device 4 …… Management server 400 …… Server wireless transmitter (wireless transmitter)
401 …… Server wireless reception unit (wireless reception unit)
403 …… Server video storage unit (storage unit)
404 …… Face data storage unit 405 …… Comparison unit 406 …… Server speaker (notification unit)
407 ... Server monitor (notification unit)
408 ... Server transmission / reception unit (transmission / reception unit)

Claims (5)

An entrance slave device (1) having a camera (104) and a monitor (205) for receiving a call from a person who has performed a call operation on the entrance slave device and displaying an image captured by the camera. A living room base unit (2) for establishing a call in response to the call;
The entrance slave unit includes a compression unit (105) for compressing a video imaged by the camera, a slave unit storage unit (106) for recording the compressed video image, and the recorded video image. A wireless transmission unit (110) for transmitting a signal wirelessly,
Management server (4) having a wireless reception unit (401) for wirelessly receiving the video signal transmitted from the wireless transmission unit, and a storage unit (403) for recording the received video signal An intercom system comprising: An entrance slave device (1) having a camera (104) and a monitor (205) for receiving a call from a person who has performed a call operation on the entrance slave device and displaying an image captured by the camera. A living room base unit (2) for establishing a call in response to the call;
A management server (4) having a wireless transmission unit (400) for wirelessly transmitting a recording request signal to the entrance slave unit;
The entrance slave unit includes a compression unit (105) for compressing a video imaged by the camera, a slave unit storage unit (106) for recording the compressed video image, and the recorded video image. A wireless transmission unit (110) for wirelessly transmitting a signal, a wireless reception unit (111) for wirelessly receiving the recording request signal, and the recorded video according to the received recording request signal An intercom system comprising: a slave CPU (113) for wirelessly transmitting a signal by the wireless transmitter.   The management server includes a face data storage unit (404) in which face data of an unwanted suspicious person such as a thief is stored in advance, and the video signal stored in the storage unit and the face data storage unit stored in the face data storage unit. A comparison unit (405) for comparing face data and a notification unit (406, 407) for notifying that the contents of the comparison performed by the comparison unit match. The intercom system according to claim 1 or 2. The management server includes a wireless transmission unit (400) for transmitting a control signal indicating that the content of the comparison performed by the comparison unit is identical to the entrance slave unit,
The entrance cordless handset includes a wireless reception unit (111) for wirelessly receiving the control signal transmitted from the wireless transmission unit of the management server,
The living room base unit includes an informing unit (201, 205) for receiving the control signal and informing that the contents of the comparison performed by the comparing unit of the management server match. The intercom system according to claim 3. The said management server is provided with the transmission / reception part (408) for transmitting to the external apparatus (3) the control signal to the effect that the content of the comparison performed in the said comparison part corresponded. The described intercom system.

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