JP2010193383A - Communication system for building and communication adapter apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To apply PLC communication technologies to a general communication line other than a power line, for a building, in order to avoid various difficult problems in distribution lines. <P>SOLUTION: A communication system for a building comprises: a high-speed communication adapter apparatus 103 for a slave unit and a high-speed communication adapter apparatus 101 for a master unit. The high-speed communication adapter apparatus 103 for the slave unit is connected to intercom communication lines 201 ... wired from the entrance of a building to respective houses, and IP intercom living-room master units 1042 ... of the respective houses and other communication apparatuses 109 ... of the respective houses are connected to the high-speed communication adapter apparatus 103 for the slave unit. The high-speed communication adapter apparatus 101 for the master unit communicates with an IP intercom collective entrance unit 1041 and the high-speed communication adapter apparatus for the slave unit via the intercom communication lines. Both of communication between the IP intercom collective entrance unit and the IP intercom living-room master unit and communication between the other communication apparatus and an external communication network are performed via the high-speed communication adapter apparatus for the master unit, the intercom communication lines and the high-speed communication adapter apparatus for the slave unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication system for a building for a plurality of communication networks using a twisted pair wire for intercom provided in a building such as an apartment house, and a communication adapter device thereof.

In recent years, high-speed PLC communication in which communication using PLC (Power Line Communication) communication technology is performed in a high frequency band of 2 to 34 MHz has been commercialized and developed.
In PLC communication, a distribution line which is a power line is used as a transmission medium for communication signals, and for example, data communication is performed in a remote meter reading system. (See JP 2006-180021 A)
As a characteristic of the distribution line, branching of the distribution line itself, a breaker, a transformer, and the like inevitably exist in order to distribute power to a large number of loads, and an inverter-use air conditioner and various chargers exist as loads.

Japanese Patent Laying-Open No. 2006-180021 (FIG. 1 and description thereof)

For example, in a distribution line system in a building such as a condominium or a high-rise building, there are many transformers as described in Patent Document 1, which is not described in Patent Document 1. There are many breakers and various branches of the distribution lines, loads such as inverter air conditioners and various chargers. As a feature of PLC communication, communication signals are broadcasted through the distribution network. Is transmitted.
Transformers, breakers, distribution lines themselves, etc. have attenuated communication signals, and various branches of transformers, breakers, distribution lines themselves reflect communication signals, and these reflected signals are noise to the original communication signals. Furthermore, loads such as inverter-use air conditioners and various chargers generate noise for communication signals.
Therefore, when communication such as data transmission in an automatic meter reading system is performed using a power line as a transmission medium for communication signals, communication signals must be taken unless countermeasures against unexpected attenuation and noise as described above are taken. The problem is that it is difficult to ensure the reliability of the system.

  The present invention has been made in view of the above-described circumstances. In order to change the concept and avoid the above-mentioned various problems in distribution lines, the PLC communication technology can be applied to general communication lines other than power lines for buildings. The purpose is to do so.

The building communication system according to the present invention is a building communication system in which intercom communication lines are wired between the sections, and the intercom communication line and the external communication network in any of the sections. Connected master adapter communication adapter, a plurality of slave adapters that are arranged between the intercom communication line and the interphone in the section, and are connected to other communication devices that are not interphone Communication between the intercom unit is performed via the communication adapter device for the slave unit and the communication line for the intercom unit, and communication between the other communication device and the external communication network is performed for the communication unit for the slave unit. It is made through the adapter device, the intercom communication line, and the master communication adapter device.

  The present invention relates to a building communication system in which intercom communication lines are wired between sections, and communication for a master unit connected to the intercom communication line and an external communication network in any of the sections An adapter device comprising a plurality of communication adapter devices for slave units, which are arranged between the intercom communication line and the intercom device in the section and connected to other communication devices which are communication devices that are not intercom devices; Communication between the slave unit communication adapter device and the intercom communication line, and communication between the other communication device and the external communication network is the slave unit communication adapter device and the interphone communication. Line and the communication adapter device for the master unit, so no new communication line is required, and It can signal quality to build a good communication system.

It is a figure which shows Embodiment 1 of this invention, and is a figure which illustrates an example of the whole network structure for building object. It is a figure which shows Embodiment 1 of this invention, and is a figure which illustrates an example of the apparatus structure of the high-speed communication adapter apparatus for main | base stations. It is a figure which shows Embodiment 1 of this invention and is a figure which illustrates an example of the apparatus structure of the high-speed communication adapter apparatus for subunit | mobile_units. It is a figure which shows Embodiment 1 of this invention, and is a figure which illustrates an example of the apparatus structure of the high-speed communication adapter apparatus for relay machines. It is a figure which shows Embodiment 1 of this invention and is a figure which illustrates an example of the multistage structure network structure of the high-speed communication adapter apparatus for relay machines. It is a figure which shows Embodiment 1 of this invention, and is a figure which illustrates the concept of the OFDM communication system of a high-speed communication adapter apparatus. It is a figure which shows Embodiment 1 of this invention, and is a figure which illustrates the concept of the applied modulation OFDM communication system of a high-speed communication adapter apparatus. It is a figure which shows Embodiment 1 of this invention, and is a figure which illustrates the concept of the communication band control and priority control of a high-speed communication adapter apparatus.

Embodiment 1 FIG.
Before explaining a specific example of the first embodiment of the present invention, change the way of thinking, in order to avoid the above-mentioned various problems in distribution lines, PLC communication technology for buildings to general communication lines other than power lines List examples of problems that you may encounter when making it applicable.
When using a telephone line that is an existing communication cable in a building, a device such as VDSL already uses a communication band of 40 MHz or less and encounters a problem that it may not be applicable.
When using a television TV coaxial line, which is an existing communication cable in a building, a communication band of CATV of 40 MHz or less is used, and there is a problem that it may not be applicable.
The first embodiment of the present invention also solves these problems encountered when applying PLC communication technology to general communication lines other than power lines for buildings.

  Embodiment 1 of the present invention will be described below with reference to FIGS. In addition, in each figure, the same code | symbol shows the same part.

In the following description of the present embodiment, a communication system to which a high-speed communication adapter device using a high-speed PLC technology in the case where an existing interphone twisted pair wire is used as a communication line in an apartment house is taken as an example. In this embodiment, “high speed” refers to a case where communication is performed in a high-frequency band in which the frequency of a carrier wave is 2 to 34 MHz. The present invention can also be applied to communication systems and communication adapter devices that are not “high-speed” according to the above-described definition.

As shown in FIG. 1, in a building 1 such as an apartment house, twisted pair wires for IP intercoms 200, 201, 221, 202, 203, 204, 205, 206 are existing communication lines in addition to existing distribution lines. , 207, 208, 209, 210, 211 ... exist.
Of the IP interphone twisted pair wires 200, 201, 221, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, the IP interphone twisted pair wires 202, 203, 204, 205, 206, 207, 208, 209, 210, 211,... Are wired for each house of the building 1.

In the building 1, as shown in FIG. 1, the high-speed communication adapter device 101 for the master unit, the high-speed communication adapter device 102 for the relay unit, the high-speed communication adapter device 103 for the slave unit corresponding to the door-to-door and the entrance, installed at the entrance IP intercom (collective entrance) 1041, IP intercoms installed in each door 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 10410, 10411, ... installed in each door IP interphone (slave unit) 104c, a door-to-door user PC 105, a door-to-door mobile phone 106, a door-to-door mobile phone 106 small base station device 1060, and a remote home appliance control device 107, home security home server 108, automatic meter reading device 109 for power, gas, water, etc., access Router 111 is installed.
An IP interphone (collective entrance machine), an IP intercom (living room master), an IP interphone (living room handset), etc. are collectively referred to as an intercom machine.
The building is divided into several sections. For example, in a housing complex, it is divided into sections such as each door, entrance, customer service space, common space such as a meeting room, management room, and machine room. Even in the office building, each house becomes an office and is similarly divided. The office may be further divided into multiple areas. The building to which the present invention is applied is divided, intercom communication lines are wired between the sections, and intercom machines that communicate using the intercom communication lines are provided in each section. It is a building.

  The access router 111 is further connected to the device monitoring device 113 via the high-speed adapter device via the external Internet line 112. In FIG. 1, the equipment monitoring apparatus 113 incorporating the high-speed adapter device is illustrated.

The IP interphones (base units) 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 10410, 10411,. 103 are connected via communication lines 1042TP, 1043TP, 1044TP, 1045TP, 1046TP, 1047TP, 1048TP, 1049TP, 10410TP, 10411TP,...
The IP intercoms (living unit) 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 10410, 10411,... Installed in each door are the same as the corresponding IP intercom (sitting unit) 104c. Are connected by a communication line consisting of a twisted pair line.

  The monitoring IP cameras 221 and 222 installed at the entrance of the building 1 are connected to the high-speed communication adapter device 101 for the master unit through a communication line 220 formed of a twisted pair line. The high-speed communication adapter device 101 for the master unit is installed in any section (for example, a management room in the case of an apartment house).

In the example of FIG. 1, the high-speed communication adapter device 103 for the slave unit to which the IP interphone (living base unit) 10411 is connected includes a user PC 105 corresponding to a door, a mobile phone 106 corresponding to a door, and a mobile phone 106 corresponding to a door. The small-sized base station apparatus 1060 is connected to each other, and the high-speed communication adapter apparatus 103 for the slave unit to which the IP interphone (living room master unit) 1044 is connected includes the remote home appliance control unit 107, the home security home server 108, power / gas / water supply The automatic meter-reading device 109 and the small base station device 1060 are illustrated as examples, but the other high-speed communication adapter devices 103 for the slave units are not shown in the figure, User PC 105, mobile phone 106 corresponding to each door, remote home appliance control device 107, home security home server 10 , Automatic meter reading device 109, such as electricity, gas and water, and the small base station apparatus 1060 of the house-to-house enabled mobile phone 106 is installed at an arbitrary individually for each door to door.

  The slave unit high-speed communication adapter device 103 is installed in each room of the apartment house 1 and receives a communication signal from the master unit high-speed communication adapter device 101 directly or via the relay unit high-speed communication adapter device 102. Small-sized base station device 1060 for mobile phones, such as IP interphone (room base unit) 1044 of an apartment IP intercom system connected to the high-speed communication adapter device 103 for the slave unit. , IP camera 221 for monitoring, remote home appliance control device 107, automatic metering device (measuring meter) 109 for electric energy / water / gas, home security home server 108 for home security system, Internet access line (line for user PC 105) An IP packet signal is transmitted to each device. Communication devices that are not intercom devices, such as these devices, are referred to as other communication devices.

  The repeater high-speed communication adapter device 102 is installed for each predetermined number of slave high-speed communication adapter devices 103 as in the case of PLC communication.

  An analog communication signal flows through each of the communication lines 200, 201 to 211, 1042TP to 10411TP, 220, and 221 formed of the twisted pair lines.

  Since the output of the user PC 105 is a digital signal, a D / A conversion function I / O is attached to either the user PC 105 or the high-speed communication adapter device 103 for the slave unit, and the communication line of the high-speed communication adapter device 103 for the slave unit The output to (twisted pair line) is an analog signal.

  As is well known, the IP camera is a notation of a camera called an internet camera, a web camera, a network camera or the like, and the same applies to an IP intercom.

  Next, the operation of the communication system in the building 1 illustrated in FIG. 1 will be described.

  The voice of the visitor at the entrance is transmitted from the IP intercom (collective entrance) 1041 to the communication line (twisted pair line) 200 → the high-speed communication adapter device 101 for the master unit → the communication lines (twisted pair line) 201, 221 → the high-speed communication for the slave unit. The adapter device 103 communicates with the analog signal and outputs a voice to a corresponding IP interphone (room base unit) or IP interphone (room unit) 104c. In this way, communication between the intercom devices is performed via the slave communication adapter device, the interphone communication line, and possibly the master communication adapter device.

At the same time, for example, an image captured by the monitoring IP camera 221 is transmitted from the monitoring IP camera 221 to the communication line (twisted pair line) 220 → the high-speed communication adapter device 101 for the parent device → the communication line (twisted pair line) 201, 221 → for the child device. The high-speed communication adapter device 103 communicates with an analog signal and is displayed on a display screen of a corresponding IP intercom (living room master).
For example, an image captured by the monitoring IP camera 222 is stored in a monitoring screen of a management room or a monitoring device such as a management company or a security company and displayed on the monitoring screen.

  The user PC 105 is connected to the external Internet line 112 through the high-speed communication adapter device 101 for the parent device, the communication line (twisted pair line) 221 and the high-speed communication adapter device 103 for the child device.

  The remote home appliance control device 107 is connected to the external Internet line 112 via the high-speed communication adapter device 101 for the parent device, the communication line (twisted pair line) 201, and the high-speed communication adapter device 103 for the child device.

  The home security in-house server 108 is connected to the external Internet line 112 via the high-speed communication adapter device 101 for the master unit, the communication line (twisted pair line) 201, and the high-speed communication adapter device 103 for the slave unit. Connected with security company monitoring equipment.

  The automatic meter reading device 109 for power, gas, water, etc. is connected to the external Internet line 112 via the high-speed communication adapter device 101 for the master unit, the communication line (twisted pair line) 201, and the high-speed communication adapter device 103 for the slave unit. It is connected to the monitoring device of the meter reading management company on the external internet line 112.

  As illustrated in FIG. 1, by connecting the high-speed communication adapter device 101 for the master unit, the high-speed communication adapter device 102 for the relay unit, and the high-speed communication adapter device 103 for the slave unit to the existing twisted pair wire for the intercom in the apartment house, Constructing a communication network in an apartment house, using the interface of the high-speed communication adapter device 103 for the slave unit as an apartment IP intercom system, a small base station device for mobile phones, an IP camera for monitoring, a remote home appliance control device, electric energy / water supply / Establishing independent virtual networks on the same communication line by connecting gas meter, house security system, and internet access line devices, has the effect of reducing equipment installation costs.

Here, the concept of communication among the high-speed communication adapter device 101 for the parent device, the high-speed communication adapter device 103 for the child device, and the high-speed communication adapter device 102 for the repeater is as shown in FIG. As in the case of PLC communication, the slave high-speed communication adapter device 103 close to the master high-speed communication adapter device 101 communicates directly with the master high-speed communication adapter device 101, and from the master high-speed communication adapter device 101. The remote high-speed communication adapter device 103 communicates with the parent high-speed communication adapter device 101 via the relay high-speed communication adapter device 102.
It is to be noted that a high-speed communication adapter device 101 for a parent device, a high-speed communication adapter device 102 for a relay device, and a high-speed communication adapter device 103 for a child device form a hierarchical communication network. The high-speed communication adapter device 101 for the parent device and the high-speed communication adapter device 102 for the relay device, the high-speed communication adapter device 102 for the relay device 102 and the high-speed communication adapter device 103 for the child device, and the high-speed communication adapter device for the parent device, which are connected respectively. The 1 to N communication time between 101 and the slave high-speed communication adapter device 103 is divided, and a communication band is allocated fairly between the slave high-speed communication adapter devices 103.

  The internal configuration of the high-speed communication adapter device 101 for the master unit, the high-speed communication adapter device 103 for the slave unit, and the high-speed communication adapter device 102 for the relay unit so that the above-described operation of the communication system in the building 1 can be performed is as shown in FIG. The configuration is illustrated in FIG.

  Hereinafter, the internal configurations of the high-speed communication adapter device 101 for the parent device, the high-speed communication adapter device 103 for the child device, and the high-speed communication adapter device 102 for the relay device will be described in order with reference to FIGS.

The high-speed communication adapter device 101 for the master unit includes a plurality of communication modems 1011, 1012, 1013, 1014, 1015,... 101 N and a concentrator 101 CW in a card configuration, as exemplified in FIG. Built-in.

  Communication modems 1011 to 101N are connected to corresponding high-speed communication adapter devices 103 corresponding to door-to-door and front doors via corresponding communication lines (twisted pair lines) 200, 202, 203, 204, 205, 206, and 20N. At the same time, it is connected to the concentrator 101CW.

  The communication modems 1011 to 101N convert analog communication signals on the corresponding communication lines (twisted pair lines) 200, 202, 203, 204, 205, 206, and 20N into IP packet signals and transmit them to the line concentrator 101CW.

The line concentrator 101CW is connected to the external Internet line 112 via the Ethernet (registered trademark) cable 110. Therefore, the high-speed communication adapter 103 for the slave unit corresponding to the door-to-door and the entrance is compatible with the communication line (twisted pair line). 200, 202, 203, 204, 205, 206, 20 N are connected to the external Internet line 112 via the corresponding communication modems 1011 to 101 N of the high-speed communication adapter device 101 for the master unit and the concentrator 101 CW.
The high-speed communication adapter device 101 for the master unit has a plurality of communication modes within the communication band, and uses the entire band as one communication band or performs communication by dividing the frequency band into small parts by switching the communication modes. It has.
Further, as illustrated in FIG. 2, the high-speed communication adapter device 101 for the master unit is configured by a plurality of communication cards 1 to N (communication modems 1011 to 10N), and each communication card (communication modem) is different for each system. The interphone twisted pair line is accommodated, and each communication card (communication modem) converts an analog signal on the interphone twisted pair line into an IP packet signal. Each IP packet signal converted by each communication card (communication modem) is bundled into one by the concentrator 101CW in the master high-speed communication adapter apparatus 101, and this concentrator 101CW is connected to an external communication line such as the Internet line. Connecting.

  The slave unit high-speed communication adapter device 103 is installed in each room of the building 1 and, as illustrated in FIG. 3 as an example, a plurality of connection ports 1031, 1032, 1033, 1034, 1035, 1036, 1037, A concentrator 103C to which each of the connection ports 1031 to 1037 is connected, and a communication modem 103CM in the form of a card connected to the concentrator 103C are incorporated.

In the case where the high-speed communication adapter device 103 for the slave unit is a high-speed adapter device for the slave unit corresponding to, for example, the IP intercom (living base unit) 1044 in FIG. 1, the connection port 1031 is connected via a corresponding communication line (twisted pair line), for example. It is connected to an IP intercom (home unit) 1044.
Similarly, the connection port 1033 is connected to the small base station device 1060 of the mobile phone 106, the connection port 1034 is connected to the external Internet line 112, the connection port 1035 is connected to the home security home server 108, and the connection port 1036 is connected to the automatic meter reading device 109. Ports 1037 are connected to remote home appliance control device 107, respectively.

The high-speed communication adapter device 103 for the slave unit receives the signal from the high-speed communication adapter device 101 for the master unit directly or via the high-speed communication adapter unit 102 for the relay unit, converts analog data into an IP packet signal, Collective housing IP intercom system 1044, 104c, small cell phone base station device 1060, monitoring IP cameras 221, 222, remote home appliance control device 107, automatic meter reading device (measurement meter) 109, housing security via device 103CW An IP packet signal is transmitted to the system (home security home server) 108 and each device (user PC) 105 on the Internet access line.

The relay high-speed communication adapter device 102 has a function of relaying data communication with the slave high-speed communication adapter device 103 and extending the communicable distance.
The relay system of the high-speed communication adapter device 102 for the relay machine has two functions, ie, a relay system using a frequency division system and a relay system using a time division system.

  As shown in FIG. 4 (a), the frequency division type high-speed communication adapter device 102 for a repeater is a card-type communication modem for a parent device connected to the high-speed communication adapter device 101 for the parent device. 1021 and a slave-unit communication modem 1022 in card form connected to the high-speed communication adapter device 103 for slave units, and the communication modems 1021 and 1022 communicate using different frequency bands.

  In the case of the high-speed communication adapter device 102 for a repeater adopting the time division method, the high-speed communication adapter device 101 for the parent device and the high-speed communication device for the child device are included in the communication modem 1022 as illustrated in an example in FIG. The communication adapter device 103 is connected, and communication with the high-speed communication adapter device 101 for the parent device and communication with the high-speed communication adapter device 103 for the child device are performed in a time division manner.

  The communication between the high-speed communication adapter device 101 for the parent device, the high-speed communication adapter device 102 for the relay device, and the high-speed communication adapter device 103 for the child device is illustrated in the OFDM communication system illustrated in FIG. 6 or illustrated in FIG. This is performed by the applied modulation OFDM scheme. In the case of the applied modulation OFDM system as illustrated in FIG. 7, an optimum communication link line is established according to the transmission path condition, and automatically adjusted to the optimum value according to fluctuations in the transmission path condition such as noise contamination. It has a function.

  In addition, communication among the high-speed communication adapter device 101 for the master unit, the high-speed communication adapter device 102 for the relay unit, and the high-speed communication adapter device 103 for the slave unit may be encrypted using a communication data encryption function. Yes, exchange cryptographic keys regularly.

  FIG. 8 is a diagram exemplifying the concept of communication band control and priority control of the high-speed communication adapter device, such as the IP interphone (room base unit) 1044 of the apartment house IP intercom system connected to the high-speed communication adapter device 103 for the slave unit. , Home security indoor server 108, automatic metering device (measurement meter) 109 for electric energy / water / gas, etc., mobile phone small base station device 1060, remote home appliance control device 107 communication packets 1044DP, 108DP, 109DP, 1060DP, 107DP are assigned identifiers 1, 2, 3, 4, 5 to form a virtual network, and identifiers 1, 2, 3, 4, 5 are assigned according to the data control information set for each virtual network. It is a conceptual diagram in which bandwidth control and priority control are performed by using.

  IP intercom (home base unit) 1044 of the apartment house IP intercom system, home security in-house server 108, automatic metering device (measurement meter) 109 for electric energy / water / gas, small mobile phone base station device 1060, remote home appliance The communication packets 1044DP, 108DP, 109DP, 1060DP, and 107DP of the device control device 107 pass through the existing communication lines 1044TP, 108TP, 109TP, 106TP, and 107TP that are twisted pair wires, and The connection ports A, B, C, D, and E lead to the individual input buffers 115, 115, 115, 115, 115 of the slave high-speed communication adapter device 103, and the slave device high-speed communication adapter device 103 receives the data packet identifier. Priority / bandwidth control setting Band control and priority control are performed based on the table 116, and in accordance with the band control and priority control, the existing in-housing communication line (from the output buffer 117, 117, 117, 117, 117 of the high-speed communication adapter device 103 for the slave unit) It communicates to the high-speed communication adapter device 101 for the master unit via the existing intercom cable).

  In the priority control, the communication packet is controlled according to the priority information registered in the priority / bandwidth control setting table 116 in the slave high-speed communication adapter apparatus 103.

  The bandwidth control is performed according to the bandwidth control information registered in the priority / bandwidth control setting table 116 in the slave high-speed communication adapter apparatus 103, and the output buffers 117, 117, 117, 117 in the slave high-speed communication adapter apparatus 103. , 117 is realized.

  Newly built apartment house IP intercom system, small mobile phone base station device, IP camera for monitoring, remote home appliance control device, automatic meter / meter for water / water / gas, home security When providing a system and Internet access line service in an apartment house, it is necessary to newly install a communication cable in the apartment house for data transmission of each system.

  In addition, it is conceivable to use a telephone line that is an existing communication cable in the building. However, in the case of a telephone line, a device such as VDSL already uses a communication band of 40 MHz or less and may not be applicable. I encounter the problem.

  Also, it is conceivable to use a TV TV coaxial line, which is an existing communication cable in a building. However, in the case of a TV TV coaxial line, CATV uses a communication band of 40 MHz or less and cannot be applied. You encounter the problem that there is.

  However, according to the embodiment of the present invention described above, the high-speed communication adapter device 101 for the master unit, the high-speed communication adapter device 102 for the relay unit, the high-speed communication adapter device 103 for the slave unit corresponding to the door-to-door and the entrance are used. Is usually attached to an already-wired twisted pair cable for intercom, and used as a communication line, using the intercom communication line, an apartment IP intercom system, a small base station device for a mobile phone, and a monitoring IP camera , Remote home appliance control device, automatic meter / meter / meter meter, home security system, internet access line service can be implemented in the apartment house. There are no loads such as air conditioners, breakers, inverter-use air conditioners, and various chargers. Since it can be grasped from the drawing, it is not necessary to take thorough countermeasures against unexpected attenuation and noise of the communication signal compared to high-speed PLC communication, so that the reliability of the communication signal can be secured, and furthermore, the telephone line is not used. As in the case of using a telephone line, there is no problem that it may not be applicable because a device such as VDSL already uses a communication band of 40 MHz or less, and a TV TV coaxial line is not used. Since it is not used, the problem that it may not be applicable because CATV uses a communication band of 40 MHz or less as in the case of using a coaxial line of a TV TV is not encountered.

1 building,
101 High-speed communication adapter device for master unit,
1011 to 101N High-speed communication adapter device communication modem for base unit,
101CW Concentrator for high-speed communication adapter device for base unit,
102 High-speed communication adapter device for relay machine,
1021, 1022 High-speed communication adapter device communication modem for relay machine,
103 high-speed communication adapter device for handset,
1031-1037 Connection port of the high-speed communication adapter device for the slave unit,
103CM Communication modem for high-speed communication adapter device for handset,
1041 IP intercom collective entrance machine,
1042-10411 IP intercom room master unit,
105 User PC (other communication equipment),
106 mobile phones (other communication devices),
1060 mobile phone small base station device (other communication equipment),
107 Remote home appliance control device (other communication equipment),
108 Home security home server (other communication devices),
109 Automatic meter reading device (other communication equipment),
200, 201 to 211, 220, 221 Intercom communication line.

Claims (11)

A communication system for buildings in which intercom communication lines are wired between each section,
A communication adapter device for a master unit connected to the intercom communication line and an external communication network in any of the sections;
A plurality of slave adapters are arranged between the intercom communication line and the interphone in the section, and connected to other communication devices that are communication devices that are not interphones,
Communication between the intercom units is performed via the slave unit communication adapter device and the intercom communication line, and communication between the other communication device and the external communication network is the slave unit communication adapter device, A communication system for buildings, which is made through the intercom communication line and the base adapter communication adapter device. The building communication system according to claim 1,
A communication system for buildings, wherein communication between the intercom devices and communication between the other communication device and the external communication network are performed at a frequency in the MHz band. In the building communication system according to claim 1 or 2,
The building communication system, wherein the other communication device is at least one of a home security home server, an automatic meter-reading device, a mobile phone small base station device, and a remote home appliance control device. In the communication system of the building as described in any one of Claims 1-3,
A communication system for a building, wherein communication between the base adapter and a plurality of slave adapters is performed according to either an OFDM communication scheme or an adaptive modulation OFDM communication scheme. In the communication system of the building as described in any one of Claims 1-4,
A building communication system, wherein an identifier is assigned to each signal data of each communication, and band control and priority transmission control are performed according to data control information set for each signal data. In the communication system of the building as described in any one of Claims 1-5,
A relay adapter communication adapter connected to the intercom communication line is installed between the master adapter and a plurality of slave adapters.
The building communication system, wherein the base unit communication adapter device and the relay unit communication adapter device perform 1-to-N communication. In a building communication system in which intercom communication lines are wired between each section, between other communication devices that are not intercom machines connected to a plurality of other communication adapter devices and an external communication network A communication adapter device used for communication in
A communication adapter device comprising a plurality of communication modems that individually communicate with a plurality of other communication adapter devices via the intercom communication line, and a line concentrator that combines the plurality of communication modems to connect to the external communication network . In a building communication system in which intercom communication lines are wired between each section, a communication adapter device to which other communication devices that are not interphone devices and interphone devices are connected,
A communication modem that communicates with another communication adapter device via the intercom communication line, a plurality of connection ports to which the intercom device and the other communication device are connected, and a plurality of the communication ports are connected to the communication modem. A communication adapter device including a line concentrator. In a building communication system in which intercom communication lines are wired between each section, other communication devices that are communication devices that are not interphone devices, and a plurality of slave adapter communication adapter devices to which the interphone devices are connected, and A communication adapter device that relays communication via the intercom communication line between a communication adapter device for a master unit used for communication between another communication device and an external communication network,
A communication adapter device comprising a communication modem for performing communication with the communication adapter device for the parent device and the communication adapter device for the child device. In the communication adapter device according to any one of claims 7 to 9,
A communication adapter device, wherein communication between the adapter devices is performed at a frequency in the MHz band. In the communication adapter device according to any one of claims 7 to 10,
The communication adapter apparatus is characterized in that the communication between the adapter apparatuses is performed by one of an OFDM communication system and an adaptive modulation OFDM communication system.

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