JP2000175278A - Communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control home installation without the need for any special installation cost by providing a center system that communicates with a house side terminal connecting to a distribution network in a house or the like via a distribution network unit through a communication line and a LAN or the like so as to intervene communication with a prescribed house side terminal. SOLUTION: A network 100 of the communication system 100 is formed with a LAN 120 and a communication network 106 including an optical cable and the Internet and connected to a distribution network 104 via a distribution network unit 116. A portable terminal can communicate with house side terminals of a house 110 and a company 112 connected to the distribution network 104 with an incoming line 114 from anywhere by using a compound wave of low and high frequency signals for power supply via the communication network 106. Furthermore, a house installation control center 108 intervenes communication between the portable terminal and a prescribed house side terminal designated by the portable terminal. Thus, the portable terminal at a visit place can control electric appliances being house side terminals without the need for installation cost of the in-house information communication network.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention belongs to the technical field of communication systems.

[0002]

2. Description of the Related Art A home computer for controlling household equipment such as home electric appliances is connected to a telephone line, and an operation of the household equipment is performed, for example, when the user is away from home by instructing the home computer via the telephone line. There is a technology to control from. At this time, the home computer can be instructed via the Internet.

[0003]

However, in the prior art for instructing a home computer via a telephone line, a local information network (LAN) for interconnecting a home computer and each household equipment (the control circuits thereof) is known. ) Is required, and there are problems such as a problem of the construction cost and a large-scale construction required for the existing house.

[0004]

According to a first aspect of the present invention, there is provided a communication system having an interface to a power supply line wired to a building such as a house. A house-side terminal connected via
The free side terminal whose installation location is not particularly limited, and can communicate with the house side terminal via the power supply line, and are specified from the free side terminal and the free side terminal or specified according to the free side terminal. And a center device that mediates communication with the house side terminal.

[0005] The house side terminal of this communication system is connected to a power supply line wired to a building such as a house via an interface. The interface transmits a communication wave (high frequency) to the power supply line and extracts a communication wave from the power supply line. The power supply line and the center device are connected via a communication network such as a power distribution network, an optical cable, and the Internet.

[0006] The free-side terminal is also connected to the center device via a communication network such as a power distribution network, an optical cable, or the Internet. Therefore, even if the free-side terminal is not particularly limited in the installation place, a condition is provided as long as the free-side terminal can be connected to a communication network such as a power distribution network, an optical cable, or the Internet. However, it is also possible to wirelessly transmit / receive a communication signal to / from the free side terminal (access to a power distribution network or the like), so that there is virtually no restriction on the installation location.

[0007] The free side terminal and the house side terminal are connected via a center device, and the center device is connected to a free side terminal and a house side terminal specified by the free side terminal or specified in accordance with the free side terminal. Mediates communication. Here, mediation does not mean only relay or transfer of communication,
For example, it includes a case where data received from one is processed and then sent to the other, or another data specified by data (a command or the like) received from one is sent to the other.

If the house side terminal is provided with a control function of electric equipment such as home appliances (for example, a function of turning on / off a power supply, a function of setting or controlling an air-conditioning temperature, an operation time, an operation level, and the like), it is possible to go out. By operating the free-side terminal as in the above, the operation of home electric appliances and the like can be controlled from outside. Since the house side terminal is connected to the power supply line, the home LAN
Such equipment is not required, and it can be easily installed regardless of whether it is new or existing. In addition, functions as an interface and a house terminal may be incorporated in home electric appliances and the like. In this case, it is only necessary to connect the power plug of the home electric appliance or the like to the power supply line, and no special installation work is required.

[0009] Alternatively, the terminal on the house side can be provided with functions such as locking and unlocking of an entrance, detection of disaster such as fire, detection of an intruder, and the like. You can also check. Also, if the free-side terminal and the house-side terminal are provided with a voice communication function, it is possible to talk with a person at home or office from outside. Further, an image communication function may be provided.

[0010] The communication system according to the second aspect is the first aspect.
In the communication system described above, the free side terminal is connected to the power supply line via an interface, and communication between the free side terminal and the center device is performed via a power supply line to which the free side terminal is connected. It is characterized by being performed.

The free side terminal is connected to a power supply line via an interface, and communication between the free side terminal and the center device is performed via the power supply line. Can be connected and used. Therefore, compared with the case where the free side terminal is connected to the telephone line, the place where the free side terminal can be used is extremely wide.

A communication system according to a third aspect is the first aspect.
Or the communication system according to 2, wherein the house side terminal controls the electric equipment in accordance with an instruction from the free side terminal acquired via the center device. Thus, as described above, the operation of the electric equipment (for example, home appliances) can be controlled from the outside or the like by operating the free side terminal at the outside or the like.

The communication system according to the fourth aspect is the first aspect.
4. The communication system according to any one of Items 3 to 3, wherein the house-side terminal sends a detection result of an abnormality detection unit that detects any of a fire, a gas leak, and an intrusion to the center device. By transmitting the detection result sent from the house side terminal to the free side terminal from the center device, it is possible to confirm the safety of the home or office from an out-of-home location or to know an abnormality such as a fire. Further, when an abnormality such as a fire occurs, the center device notifies the fire department, the police, a security company, or the like, so that appropriate and prompt measures can be taken for such an abnormality. At this time, it is also possible to assign a priority to the free terminals (plural terminals) that report the occurrence of the abnormality, or to assign a priority to the free terminals and the report destinations including the fire department, police, security company, and the like.

[0014] The communication system according to claim 5 is a communication system according to claim 1.
5. The communication system according to any one of to 4, wherein the center device mediates communication between the house-side terminal and a free-side terminal specified by the house-side terminal or specified according to the house-side terminal, or Mediating communication between the free side terminal and another free side terminal specified by the free side terminal or specified according to the free side terminal.

With this configuration, communication between the house side terminal (for example, a person who is at home or office) and the free side terminal (for example, a person who goes out) and the free side terminals (for those who go out) can be performed. , And the house side terminal and the free side terminal can be used as an interphone, for example.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example (embodiment) of an embodiment of the present invention will be described with reference to the drawings. First, a schematic configuration of a communication system according to the present embodiment will be described with reference to FIG.
As shown in FIG.
Is formed by a distribution network 104 and a communication network 106. The communication network 106 includes, for example, an optical cable (trunk system) 107 and the Internet 109 shown in FIG.

The distribution network 104 includes a house 1 corresponding to a building.
10 and the company 112 are connected by a service line 114, and an indoor wiring 124 (corresponding to a power supply line, not shown in FIG. 1) connected to the service line 114 is connected to the house 110 and the company 112. The power distribution network 104, service lines 114, and indoor wiring 124 have 50
A low frequency of 60 Hz or 60 Hz flows, and a high frequency as a communication wave used in the communication of the present invention flows. That is, a mixed wave of a low frequency and a high frequency flows.

The power distribution network 104 and the Internet 109 are connected via a power distribution network unit 116, and the home equipment control center 108 corresponding to the center device is connected to the communication network 10.
6 is connected. The household equipment control center 108 is a communication device mainly composed of a computer, and can execute various kinds of communication and control described later.

A personal computer 118, which is an example of a free-side terminal, is, for example, as shown in FIG.
The communication network 106 (the Internet 109) is accessed via the LAN 120 including the AN cable 120a and the LAN server 120b. The display 119 of the personal computer 118 displays the state of the electric equipment in the house 110 (or the company 112), and the details will be described later.

The connection path between the home equipment control center 108 and the house 110 (or the company 112) is as shown in FIG. Each house 110 (company 112) is connected to a distribution line 104a which is a part of the distribution network 104 via a service line 114, and the distribution line 104a is connected to a transceiver 122 of an optical cable (wiring system) 107a via a distribution network unit 116. Have been.

The distribution network unit 116 is connected to the distribution line 104.
a to extract the communication wave (high frequency) from the transceiver 122
And the communication wave received from the transceiver 122 is sent out to the distribution line 104a. The transceiver 122 converts the communication wave received from the power distribution network unit 116 into an optical signal and sends it to the optical cable (wiring system) 107a, and converts the optical signal received from the optical cable (wiring system) 107a into a communication wave to transmit the communication network. Send it to unit 116.

Since the optical cable (wiring system) 107a is connected to the household equipment control center 108, the optical cable (wiring system) 107a-transceiver 122-distribution network unit 116-distribution line 104a (distribution network 104) is used. Communication between the home equipment control center 108, the house 110, and the company 112 is possible.

The connection route in the house 110 is as illustrated in FIG. Since the same applies to the inside of the company 112, the company 11
Illustration and explanation of the connection path in 2 are omitted. Inside the house 110, an indoor wiring 124 as a power supply line is wired. The indoor wiring 124 includes a home computer 126 corresponding to electric equipment and various electric devices (for example, a hot water supply device such as an air conditioner and a bath, a video). Deck, a switchboard of a lighting device, etc.) 128 are connected. These are houses 11
Since it is electrical equipment within 0, it is also referred to as household equipment below.

The home computer 126 and the electric equipment 12
The electrical equipment (home equipment) such as 8 has a remote control unit 130 having the configuration shown in FIG. The remote control unit 130 corresponding to the house side terminal includes, for example, a power supply unit 134 connected to the indoor wiring 124 through an outlet 132, and a communication unit 13 corresponding to an interface.
6. Electronic control unit 138 which is the center of the house side terminal,
It comprises a power control unit 140 and the like for actually operating the household equipment. The configuration shown in FIG. 4 is a general configuration, and may be slightly different depending on the type of household equipment.

The power supply unit 134 is a unit that distributes power from the indoor wiring 124 to the electronic control unit 138 and the power control unit 140. Communication unit 1
Numeral 36 is interposed in a path from the indoor wiring 124 to the power supply unit 134. The communication wave is extracted from this path, converted into a digital signal, transferred to the electronic control unit 138, and received from the electronic control unit 138. A modem device that converts a digital signal into a communication wave and sends it out to the same path. The communication unit 136 and the electronic control unit 13
8 is connected via a connector 139.

The electronic control unit 138 is a well-known one-chip microcomputer, and can execute communication processing via the communication unit 136, control processing of the power control unit 140, and the like. The power control unit 140 is a unit for supplying power to a driven object connected to the power control unit 140 and cutting off the power supply, and the interruption of the power is controlled by the electronic control unit 138.

Next, referring to FIGS.
A resident (hereinafter referred to as an owner) uses the personal computer 118 on the go as a free-side terminal, and uses the communication system 100 to connect to the Internet 109 to check the state of home equipment at home or change settings. An example of the operation of the personal computer 118, the household equipment control center 108, and the remote control unit 130 will be described using an example in which the household equipment control center 108 is accessed via the home appliance control center 108.

First, as shown in FIG. 6, the owner connects to the Internet 109 using the personal computer 118 on the go, and
(S1001), and activates the home (XX house) remote control system menu (S100).
2).

On the other hand, the household equipment control center 108
As shown in (1), when the login signal is received (S110)
1), the control destination is determined based on the information (S110)
2). Then, when remote control processing of the control destination (XX house) is started (S1103), a state detection signal is output to the remote control unit 130 of the control destination (S1103).
104).

As shown in FIG. 8, the remote control unit 13
When the status detection signal is input (S1201), the status of the home equipment (for example, whether it is operating or not) is detected (S1202), and the detection result is transmitted to the home equipment control center 108 as an equipment status signal. (S1203).

The household equipment control center 108 receives the equipment status signal from the remote control unit 130 (S110).
5) If the reception is confirmed (S1106: YE)
S), the home equipment status signal is transmitted to the personal computer 11
8 (S1107). When the personal computer 118 receives the household equipment status signal from the household equipment control center 108 (S1003), the personal computer 118 displays the current state of the household equipment on the display 119 based on the received signal, as illustrated in FIG. 5B. (S1004).

Subsequently, the personal computer 118
For example, it is determined whether or not a change command has been input via the keyboard (S1006). If the change command has been input (S1006: YES), a home equipment state change signal is transmitted to the home equipment control center 108 (S1007). ).

The household equipment control center 108 receives the household equipment state change signal (S1108) and transmits it to the remote control unit 130 to be controlled (S1109).
Upon receiving the household equipment state change signal (S1204), remote control unit 130 changes the state of the household equipment according to the instruction (S1205).

As described above, the owner can know the state of the household equipment and change the state of the household equipment. When a negative determination is made in S1006 or after S1007, the personal computer 118 executes
S10 for all remote control units 130 in the home)
It is determined whether or not the processes from 03 to S1007 have been performed. If the processes for all the remote control units 130 have been completed, a message to that effect is displayed on the display 119 to urge the owner to give an instruction to end the processes. If an instruction to end the process is input (S1008: YES), the communication with the household equipment control center 108 is ended.

If the processes in S1003 to S1007 have not been completed for all the remote control units 130, the process proceeds to S1.
Returning to 003, all remote control units 130
If an instruction to end the process is input even before the process is completed, the communication with the household equipment control center 108 is ended with priority.

The home equipment control center 108 also controls the
S1 for all remote control units 130 in the house
Until the processing of S104 to S1109 is performed,
Basically, S1109 is repeated. However, if the free end terminal (the personal computer 118 in this example) is notified of the end of communication (S1110: YES), even if the processing for all the remote control units 130 is not completed, the free operation is completed. The communication with the home terminal and the home terminal (the remote control unit 130 in this example) ends.

Therefore, the owner may check the status of all household equipment, instruct the desired state change of the household equipment, and then input the end to the personal computer 118. For example, the owner may check the state of the desired household equipment. The communication by the personal computer 118 may be terminated only by confirming the status and changing the state.

Remote control unit 1 corresponding to the house side terminal
Since 30 has a control function of electric equipment such as home appliances (for example, a function of turning on and off a power supply, a function of setting or controlling an air-conditioning temperature, an operation time, an operation level, and the like),
By operating the personal computer 118 corresponding to the free-side terminal at a place where the user is outside, the operation of home electric appliances and the like can be controlled from the outside.

The remote control unit 130 is connected to the indoor wiring 124 corresponding to the power supply line.
Such equipment is not required, and it can be easily installed regardless of whether it is new or existing. In addition, functions as an interface and a house terminal may be incorporated in home electric appliances and the like. Then, connect the power plug of the home electric appliance etc. to the power supply line (indoor wiring 1).
24), no special installation work is required. (Example of portable terminal) Next, an example in which a portable terminal is used as a free terminal will be described.

As shown in FIG. 9, the portable terminal 200 of this example
, The liquid crystal display 202, the power switch 2
04, a cursor movement button 20 for selecting household equipment (home computer, bath, video, air conditioner, etc. shown) displayed on the liquid crystal display 202, etc.
6. Change button 208 for inputting a change in setting, confirm button 210 for inputting a setting or the like, cancel button 212 for inputting a cancel instruction, speaker 21
4 and the like are arranged.

As shown in FIG. 10, a drawer bar 218 provided with a microphone 216 is attached to the back side.
The drawer bar 218 is moved about one hour around the hinge 220.
It is rotatable within a range of 80 degrees (see FIG. 9C), and is normally in a folded state as shown in FIGS. 9 and 10A. Then, when the drawer bar 218 is rotated as shown in FIG. 10B, the microphone 216 turns to the front side,
The speaker 214 and the microphone 216 constitute a handset.

As shown in FIG. 9, a connector 222 for interface connection is provided on the left side surface of the portable terminal 200, and a light transmitting / receiving section 224 for infrared communication is provided on the upper side surface. As shown in FIG.
Is connected to the connector device 250.
The power supply unit 258 and the communication unit 260 are housed inside the main body 256, and the main body 256 is connected to the connector 252 by a cable 254. A protruding power plug 262 is provided.

One of the wires from the power plug 262 reaches the power unit 258 after being drawn into the communication unit 260, and the power unit 258 transforms and rectifies the current supplied from the power plug 262. The communication unit 260 and the connector 252 side, that is, the portable terminal 2
Supply to 00.

The communication unit 260 includes a power plug 262
The communication wave is extracted from the electric wire drawn in from the terminal, converted into a digital signal, and then connected to the connector 252, ie, the portable terminal 20
0, and the connector 252 side, that is, the mobile terminal 200
This is a modem device that converts a digital signal received from a PC into a communication wave and sends it to the power plug 262.

Therefore, the connector 2 of the portable terminal 200
If the connector 252 of the interface device 250 is connected to the connector 22 and the power plug 262 is connected to an outlet of an indoor wiring (not shown), the portable terminal 200 can be operated to communicate with the household equipment control center 108 via the indoor wiring. .

Communication using the interface device 300 having the configuration shown in FIG. 11B is also possible. The interface device 300 includes a main unit 302 and an infrared communication unit 306 connected to the main unit 302 by a cable 304. Although not shown, the main unit 302 houses a power supply unit and a communication unit similar to those of the above-described interface device 250, and includes a power supply plug protruding outward. However, the power supply unit only supplies power to the communication unit and the infrared communication unit 306. Note that the portable terminal 200 has a built-in rechargeable battery and can operate using the battery as a power source.

The infrared communication unit 306 emits an infrared pulse corresponding to an electric signal sent from the communication unit, and converts an infrared pulse input from the outside into an electric signal and sends out the communication unit. The interface device 300 is attached to a wall of a building or the like, and is used by connecting a power plug to an outlet 308 on the wall.

Next, communication using the portable terminal 200 as a free terminal will be described with reference to FIGS. Note that the operation of the remote control unit 130 of the household equipment is the same as that in FIG. 8 described above, and therefore illustration and description thereof are omitted. The owner who wants to check the state of the household equipment or change the setting, for example, connects the portable terminal 200 to the indoor wiring by using the interface device 250 or prepares the infrared transmitting / receiving unit for the infrared communication unit 306 of the interface device 300 in preparation for communication. After facing 224, the portable terminal 200 is activated.

As shown in FIG. 12, the activated portable terminal 2
00 displays a menu screen on the liquid crystal display 202 and waits for an instruction to start communication (S130).
1). When communication start is instructed (S1301: YE
S), a connection request signal to the home equipment control center 108 is transmitted to the distribution network unit 116 (S130).
2).

As shown in FIG. 13, the distribution network unit 11
6 receives the connection request signal from the portable terminal 200 (S
1401), request the home equipment control center 108 for the configuration of the communication circuit with the portable terminal 200 (S140).
2). As shown in FIG.
Receives the communication from the distribution network unit 116 (S15
01), if the communication requires the configuration of the communication circuit (S1502: YES), the distribution network unit 116
And a communication circuit is configured between them (S1503). And
The home equipment state detection request is received from the portable terminal 200 through the power distribution network unit 116 (S1504), and the remote control unit 130 to communicate with is specified based on the home equipment state detection request (S1505).
Then, a state detection signal is output to 30 (S1506).

When the state detection signal is input, remote control unit 130 detects the state of the household equipment and transmits the detection result to household equipment control center 108 as an equipment state signal (see S1201 to S1203 in FIG. 8). ). The household equipment control center 108 receives the equipment status signal from the remote control unit 130 (S1507). If the reception is confirmed (S1508: YES), the household equipment control center 108 transmits the household equipment status signal to the portable terminal 200 (S1509).

The portable terminal 200 is connected to the home equipment control center 1
08 is received (S1303),
If the reception is confirmed (S1304: YES), the current state of the household equipment is displayed on the liquid crystal display 202 based on the received information as illustrated in FIG. 9E (S130).
5).

When the owner changes the setting of the change button 20
8. When a change command is input by operating the cursor movement button 206, the confirm button 210, or the like, the mobile terminal 200 performs a process of receiving the change command (S1306). Next, the mobile terminal 200 determines whether or not a change command has been input,
(S1307) If a change command has been input (S13)
07: YES), a home equipment state change signal is transmitted to home equipment control center 108 (S1308).

The household equipment control center 108 receives this household equipment state change signal (S1510) and transmits it to the remote control unit 130 to be controlled (S1511).
Upon receiving the household equipment state change signal, remote control unit 130 changes the state of the household equipment according to the instruction (see S1204 and S1205 in FIG. 8).

As described above, the owner is the portable terminal 2
00 can be used to know the state of the household equipment and change the state of the household equipment. The mobile terminal 200 executes S13
04 or S1307 when negative judgment or S130
After Step 8, it is determined whether or not the processes of S1303 to S1308 have been performed on all the remote control units 130 at the control destination (the house of XX). If the processes have been completed, the fact is displayed on the liquid crystal display 202. The owner is prompted for an instruction to end the processing, and if the instruction to end the processing is input in response to the instruction (S1309: YES), the household equipment control center 108
Ends communication with.

If the processing of S1303 to S1308 has not been completed for all the remote control units 130, S1
Returning to 303, all remote control units 130
If an instruction to end the process is input even before the process is completed, the communication with the household equipment control center 108 is ended with priority.

The home facility control center 108 also controls the control destination (先
S1 for all remote control units 130 in the house
Until the processing of 503 to S1511 is performed, S1503 to
Basically, the step S1511 is repeated. However, if the free-side terminal (the mobile terminal 200 in this example) is notified of the end of communication (S1512: YES), even if the processing for all the remote control units 130 is not completed, the free-side terminal is free. The communication with the home terminal and the home terminal (the remote control unit 130 in this example) ends.

Therefore, the owner may check the status of all household equipment and instruct the state change of the desired household equipment, and then input the end to the portable terminal 200. For example, the owner may check the state of the desired household equipment. The communication by the mobile terminal 200 may be terminated only by confirming the status and changing the state.

The power distribution network unit 116 is
Waiting for a communication end notification from the server (S140)
3) Upon receiving the notification (S1403: YES), the communication line between the household equipment control center 108 and the portable terminal 200 is disconnected (S1404).

Even when the portable terminal 200 is used as the free side terminal, the operation of home electric appliances and the like can be controlled from the outside or the like in the same manner as described above.
The setting of 0 is as simple as in the case described above. In addition, the portable terminal 200 corresponding to the free-side terminal can access the home equipment control center 108 from any place as long as the power supply line (the indoor wiring 124) is provided, which is compared with the case where a personal computer or the like is used as the free-side terminal. If
Less restrictions on available locations. (Example of Intercom Function) Next, an example in which the intercom function of the communication system 100 is used will be described.

As a house side terminal for using the intercom function, a terminal with a call function (hereinafter referred to as a call terminal) 350 illustrated in FIG. 15 is used. The call terminal 350 includes a display 352, a call destination selection button 354, a handset 356, and the like, and incorporates a power supply unit, a communication unit, an electronic control unit, and the like similar to the remote control unit 130 shown in FIG. The illustration of the structure is omitted). Then, the indoor wiring 1 is connected by the plug 358.
24 (see FIG. 3).

As the free side terminal for using the intercom function, the above-mentioned portable terminal 200 is exemplified.
The above-described personal computer 118 or the like may be used as long as it has a microphone and a speaker (including an earphone, a headphone, and the like), or another form.

When there is a call from outside (for example, portable terminal 200), call terminal 350 displays the name of the caller on display 352 and sounds a ringing tone. In response to this, if the handset 356 is picked up, a call can be made. When making a call to the outside, a confirmation function for confirming the portable terminal 200 and the like that can make a call, an individual call function for calling an individual call destination to make a call, and freedom of the house 110 where the call terminal 350 is installed. You can select and use any one of the call-to-all functions to talk to the side terminal all at once.

Hereinafter, these functions will be described assuming that the portable terminal 200 is used as the free side terminal. As shown in FIG. 16, when there is an input by operating the call destination selection button 354 (S1601), it is determined whether the input is “confirmation”, “call destination selection”, or “all” (S1602). In accordance with the determination, one of the confirmation process (S1603), the individual call process (S1604), and the all-members call process (S1605) is executed.

As shown in FIG. 17, in the confirmation process, the call terminal 350 transmits a portable terminal connection confirmation signal to the household equipment control center 108 (S1701). In response to this, the mobile terminal connection confirmation signal sent from the household equipment control center 108 is received (S1702), and if the reception is confirmed (S1703), a list of callers is displayed on the display 352 (S1704). . That is, by selecting and operating “confirm” of the call destination selection button 354, it is possible to confirm with whom (and with which mobile terminal 200) a call can be made.

As shown in FIG. 18, in the individual call processing,
The mobile terminal intercom connection signal is transmitted to the household equipment control center 108 (S1801). In response, when home facility control center 108 connects call terminal 350 and designated portable terminal 200, call terminal 350 performs intercom processing for voice communication by handset 356 (S1802). If the hook 356 is hooked, the communication is terminated (S1803: YES), and the connection with the household equipment control center 108 is cut off.

As shown in FIG. 19, in the all-person call processing,
An all-mobile terminal intercom connection signal is transmitted to the household equipment control center 108 (S1901). In response, home facility control center 108 connects call terminal 350 with all of the designated portable terminals 200 that can make a call, and call terminal 350 establishes an interphone for voice communication with handset 356. Processing is performed (S1902),
If the handset 356 is hooked, the communication is terminated (S1
903: YES), the connection with the household equipment control center 108 is cut off.

FIG. 20 shows a process executed by the home facility control center 108 in response to a request accompanying such a confirmation process (S1603), a call process (S1604), or an all-members call process (S1605) from the call terminal 350. It is. The home facility control center 108 receives the intercom function signal from the call terminal 350 (S2001).
It is determined whether the request is connection confirmation, individual connection, or all connections (S2002).

In the case of a connection confirmation request (the above-mentioned portable terminal connection confirmation signal (S1701)), the call terminal 350 which has requested the connection confirmation is specified (S2003) and belongs to the same house 110 as the call terminal 350 (S2003). The mobile terminal 200 (which is a family) is read from the connection standby mobile terminal table Tb1 from the connection standby mobile terminal table Tb1 (S2004), and transmits the read connection standby mobile terminal information to the call terminal 350 (S2005). The call terminal 350 receives the portable terminal information waiting for connection, and displays the above list of callers on the display 352 (S1704). In addition, the connection waiting means a state in which a call is answered if there is a call,
The mobile terminal information waiting for connection is information indicating whether or not each mobile terminal 200 is waiting for connection.

If the request is for an individual connection (the above-mentioned portable terminal intercom connection signal (S1801)), the household equipment control center 108 specifies the call terminal 350 that has requested the connection (S2006), and the call terminal 350 The mobile terminal 200 for which connection is requested (connection target) is specified (S2007), and the connection standby mobile terminal information is read from the connection standby mobile terminal table Tb1 (S2008).
It is determined whether or not the mobile terminal 200 to be connected is waiting for connection based on the read mobile terminal information for waiting for connection (S2009). If the mobile terminal 200 to be connected is waiting for connection (S2009: YES), the call terminal 3
50 and the portable terminal 200 are connected via an interphone (S
2010), when the connection is not waiting (S2009:
NO), and transmits a call disable signal to call terminal 350 (S)
2011). Receiving the intercom connection with portable terminal 200 (S2010), call terminal 350 executes the above-described intercom process (S1802).

If it is a request for connection to all members (the above-mentioned all-phone interphone connection signal (S1901)), the household equipment control center 108 makes a call to the call terminal 350 requesting connection.
Is identified (S2012), and the connection standby mobile terminal information on the call terminal 350 and all the mobile terminals 200 in the family is read from the connection standby mobile terminal table Tb1 (S20).
13) It is determined whether there is a portable terminal 200 waiting for connection among the portable terminals 200 of the family (S2014). If there is a mobile terminal 200 waiting for connection (S2014: YE
S), an intercom connection is established between the call terminal 350 and the mobile terminal 200 waiting for connection (S2015), and if there is no mobile terminal 200 waiting for connection (S2014:
NO), and transmits a call disable signal to call terminal 350 (S)
2016). Receiving the intercom connection with mobile terminal 200 (S2015), call terminal 350 executes the intercom process (S1902) in the all-member call process described above.

The process executed by portable terminal 200 when used as an intercom is as shown in FIG. In this process, the mobile terminal 200 first determines whether or not the mobile terminal 200 is set to standby for connection (S210).
1). This setting is performed based on, for example, a setting switch or an input in a setting menu process. If the connection is waiting (S2101: YES), the portable terminal 200 transmits a connection waiting signal to the household equipment control center 108 (S21).
02).

When not waiting for connection (S2101: N
O), the mobile terminal 200 determines whether or not connection rejection is set (S2103). This setting is also performed by setting switches and setting menu processing. If the connection is rejected (S2103: YES), the mobile terminal 200 transmits a connection rejection signal to the household equipment control center 108 (S21).
04).

Also, instead of waiting for connection (S2101: N
O) When the connection is not rejected (S2103: NO), the mobile terminal 200 determines whether or not the connection is maintained (currently being connected) (S2105). If the connection is maintained (S21
05: YES), the mobile terminal 200 transmits a connection maintaining signal to the household equipment control center 108 (S2106).

The connection standby signal, the connection rejection signal, and the connection maintaining signal transmitted from the portable terminal 200 correspond to the connection waiting portable terminal table Tb of the household equipment control center 108.
1 and the connection-maintaining portable terminal table Tb2. The processing is as shown in FIG.

In this table updating process, the household equipment control center 108 receives a connection standby signal from the portable terminal 200,
The connection rejection signal and the connection maintenance signal are received as status signals (S2301). If the connection standby signal has been input (S2302: YES), the fact that the portable terminal 200 is waiting for connection (connection waiting terminal information) is written in the connection waiting portable terminal table Tb1 (S2303).
If a connection rejection signal has been input (S2305: YE
S), delete the connection waiting terminal information of the portable terminal 200 from the connection waiting portable terminal table Tb1 (S230).
6).

Subsequently, the portable terminal table Tb2 during connection maintenance
The mobile terminal information during connection maintenance is read from the
7), it is compared with the status signal to determine whether or not there is a state change (for example, the connection has been changed from maintaining the connection to the connection waiting state, or the connection has changed from the waiting state to the maintaining connection) (S2308). S2308: YES), and updates the contents of the connection-maintaining portable terminal table Tb2 accordingly (S2309). At this time, the contents of the mobile terminal table waiting for connection Tb1 may be updated together with the updating of the mobile terminal table for maintaining connection Tb2.

The connection standby portable terminal table Tb1 constantly updated in this way is used for, for example, the intercom processing shown in FIG.
The data of b2 is used for maintaining a line in intercom connection. Since the intercom call is possible between the call terminal 350 and the portable terminal 200, it is convenient, for example, for a call between family members. And it's better than a phone in this regard, because everyone has the ability to talk. (Example of image transmission function) In the above-described intercom function, sound is transmitted and received. However, as a house side terminal and a free side terminal, a video camera 360, a display 362, a cursor movement button 364, and an image as shown in FIG. An installation-type image terminal 368 including a capture destination selection button 366 and the like.
Alternatively, a video camera 370 as shown in FIG.
A display 372, a cursor movement button 374, an image capture destination selection button 376, and the like are provided. For example, by using a portable image terminal 378 connected to the indoor wiring by the interface device 250 shown in FIG. Images can be sent and received (or with audio). The cursor movement button 364 illustrated here,
374 is used for operations such as selection and instruction on the displays 362 and 372 in the same manner as the cursor movement button 206 shown in FIG. 9, and the image capture destination selection buttons 366 and 376 are called destination selection buttons 354 shown in FIG. It is used to indicate a communication destination or the like in the same manner as.

Further, an image transmission terminal dedicated to image transmission can be used as a house side terminal or a free side terminal.
An example is shown in FIG. FIG. 24A shows a spherical image transmission terminal 380, which is attached to a ceiling or a wall with a base 382. A remote control video camera is built in the spherical globe 384, and can sense a wide monitor range as shown and transmit the image.

FIG. 24B shows a hemispherical image transmission terminal 390 which is directly mounted on a ceiling or a wall surface. A remote control video camera is built in the hemispherical globe 392, and a monitor range corresponding to a hemisphere as shown in the figure can be sensed and its image can be transmitted.

FIG. 24C shows a fixed image transmission terminal 400 which is mounted on a ceiling or a wall, or placed on furniture or the like. The video camera of the image transmission terminal 400 is of a fixed type and can transmit an image in a limited range. However, by using a variable focal length video camera,
It is possible to change the sensing position in perspective. The video cameras of the image transmission terminals 380, 390, and 400 can employ a visible type or an infrared type as appropriate. Further, the communication path of the image transmission terminals 380, 390, and 400 may be performed by indoor wiring for power supply, or, for example, as shown in FIG.
May be performed via the interface device 300 shown in FIG.

By enabling image communication, for example, it is possible to confirm the state of the inside of the house from an image or the like by using an image. (Example of Home Guard) Next, a home guard system using the communication system 100 will be described.

In the home guard system, for example, a home guard unit 410 (plurality) as a house side terminal shown in FIG. 25 is installed corresponding to an entrance, a room, an entrance and a window of each room, and the like. Each home guard unit 410 has a main body 414 connected to the indoor wiring 124 (for example, see FIG. 3) by a power plug 412, and an imaging device 416 which is installed at an appropriate place such as a ceiling or a wall and connected to the main body 414. , A human sensor 418, a composite gas sensor 420, and the like. The main body 414 incorporates a power supply unit, a communication unit, an electronic control unit, and the like (these are not shown) similar to the remote control unit 130 shown in FIG. 4, and further includes a storage battery 422 in preparation for a power failure or the like.
Is built-in.

The photographing device 416 has almost the same configuration as the image transmitting terminal 380 shown in FIG. 24A, but uses an artificial retinal chip for image recognition, and determines the size of the moving object and the moving object. Automatic tracking is possible. The composite gas sensor 420 can detect hydrocarbon gas, which is a component of CO ₂ , natural gas, liquefied petroleum gas, and the like, for each type of gas.

The human sensor 418 is a pyroelectric infrared sensor, and is usually installed at the entrance of a room or on a ceiling near a window. The detection range of the human sensor 418 is a region having a radius of about 2 meters around the human sensor 418 as shown in FIG.
Scan is performed for each of OL and OR. More specifically, the human sensor 418 has a circular detection pattern having a diameter of about 20 cm in each area I.
The inside of L, IR, OL, OR is scanned to detect the presence or absence of an object (in this case, a person) for each detection pattern (projection area).

Each home guard unit 410 is connected to a home computer 126 (see FIG. 3) by indoor wiring 124 (for example, see FIG. 3) or wirelessly (radio wave or infrared communication).
Communication with is possible. Home computer 126
The processing shown in FIG. 27 is repeatedly executed at a set timing (for example, every timer interrupt). As subroutines of this processing, entrance monitoring (S2400), gas monitoring (S2500), contact determination (S2600), emergency communication (S2700), unmanned / manned judgment (S2800), unmanned alert (S2900), manned alert ( S3000).

In these processes, tables for manned alert range, gas generation correspondence, and intrusion occurrence correspondence tables set by the condition table setting process shown in FIG. 28 are used. In this condition table setting process, a condition table setting is instructed by, for example, an input operation of the owner (S3).
101: YES), when an input relating to the setting of the condition table is performed, the manned alert range, gas generation correspondence, and intrusion occurrence correspondence tables are updated accordingly.

An example of setting the manned alert range is as shown in FIG. 29 (a), and alert levels of alert and non-alert are set for each room and the like. This setting can be made as shown in FIG. 29B, for example, by turning on and off the manned alert range setting switch. In the condition table for the response to the occurrence of intrusion and the response to the generation of gas, the priority order of the contacts when the occurrence of uninhabited intrusion, the intrusion in manned, and the occurrence of gas are detected as shown in FIG. 30 is written. The mobile terminals 1 to 5 are, for example, mobile terminals 200 carried by owners and their families, telephones and facsimiles are offices and schools of the owners, and telephone numbers of police stations, fire departments, security companies, gas companies, etc. And F
An AX number can also be set.

The processing shown in FIG. 27 will now be described with reference to FIG.
This will be described with reference to FIGS. As shown in FIG. 31, in the entrance monitoring process, the home computer 126 determines whether or not the number of at-home people is set (S2401). Upon receipt of the input of the value (S2402), the number of at-home people is updated in the at-home number table (S2403).
When a negative determination is made in S2401, or following S2403, an exit signal is input (S2404) and an entry signal is input (S2405), and the number of entrance / exit differences is calculated based on the input (S2406), and the number of people at home is updated (S2406). S240
7).

The exit signal and the entrance signal are input from a home guard unit 410 installed at the entrance, the entrance, or the like. These are executed by each of the home guard units 410 (not limited to the entrance and the entrance).
This is the result of processing related to the detection of.

As shown in FIG. 32, the home guard unit 410 performs one area sensing processing by the human sensor 418 cyclically for each area IL, IR, OL, OR (for example, area IL → area IR → area OL → It is repeatedly executed (in the order of the area OR). In this processing, first, the number of detected patterns (sensitive patterns) in which a person has been detected (the number of sensations) is counted for 0.1 second (S2411), and then the difference between the previous value and the current value of the sensible number is counted. That is, the number of changes is calculated (S2412). By repeating this, the change in the number of impressions of each area IL, IR, OL, OR can be found.

By utilizing the change in the number of impressions, it is possible to count the number of people entering or exiting from the entrance or the entrance of the room. Referring to FIG. 33, a description will be given of a number-of-entry calculation process for counting the number of persons entering the monitoring area (for example, entrance, room, etc.) by the home guard unit 410, and referring to FIG. A number calculation process for counting the number of people who have gone out will be described.

As shown in FIG. 33, in the entry number calculation processing, first, it is determined whether or not both the areas IL and IR are insensitive (there is no sensitive pattern, that is, no person is present inside the entrance, etc.). (S2421), if the determination is affirmative (there is no person inside the entrance or the like), it is determined whether any of the areas OL and OR is sensitive (there is a sensitive pattern, that is, there is a person outside the entrance or the like). (S2422). If the determination is affirmative (there is a person outside the entrance or the like), the number of changes in the area IL calculated in the one-area sensing process (S2423), the number of changes in the area IR (S2424), the number of changes in the area OL (S2425), and Number of changes in area OR (S2426)
Are calculated, and the sum of the numbers of changes in the areas IL and IR is calculated as the number of inside changes (S2427), and the areas OL and O are calculated.
The sum of the numbers of changes in R is calculated as the number of changes outside (S242).
8).

Subsequently, it is determined whether or not the number of inside changes is greater than the previous value (S2429). If the determination is affirmative, it is determined whether or not the number of outside changes is smaller than the previous value (S2429). S2430). Then, if the number of changes in the inside increases (S2429: YES) and the number of changes in the outside decreases (S2430: YES) for more than 0.3 seconds (S2431: YES), the inside of the doorway or the like moves from the outside to the inside. Since it can be considered that a person has moved, the number of persons in the room (the number of persons in the monitoring area) is increased by 1 (S2432).

As shown in FIG. 34, in the number calculation process,
First, it is determined whether or not both the areas OL and OR are insensitive (there is no sensible pattern, that is, there is no person outside the entrance or the like) (S2441), and a positive determination is made (there is no person outside the entrance or the like). ), Either the area IL or IR is sensitive (there is a sensitive pattern, that is, there is a person inside the doorway etc.)
It is determined whether or not it is (S2442). If the determination is affirmative (there is a person inside the entrance, etc.), the number of changes in the area IL calculated in the one-area sensing process (S2443), the area IR
Of the area OL (S2444), the number of changes of the area OL (S2444)
45) and the change number of the area OR (S2446) are input, and the sum of the change numbers of the areas IL and IR is calculated as the inside change number (S2447), and the sum of the change numbers of the areas OL and OR is set as the outside change number. It is calculated (S2448).

Subsequently, it is determined whether or not the number of outside changes is greater than the previous value (S2449), and if affirmative, it is determined whether or not the number of inside changes is smaller than the previous value (S2449). S2450). Then, when the number of outside changes increases (S2449: YES), and the state where the inside changes number decreases (S2450: YES) continues for 0.3 seconds or more (S2451: YES), from the inside of the entrance or the like to the outside. Since it can be considered that a person has moved, the number of persons in the room (the number of persons in the monitoring area) is decremented by 1 (S2452).

Thus, each home guard unit 4
The number of indoors calculated by 10 is the number of home guard units 4
10 is also stored and transmitted to home computer 126 for storage. That is, as shown in FIG. 35, the home computer 126 obtains room number information from each home guard unit 410 (S246).
1) Compare with the data in the occupant number table (S246)
2) If there is a difference (S2463: NO), the room number table is updated (S2464).

As described above, each home guard unit 410 can grasp the number of persons existing in each monitoring area, and the home computer 126 can grasp the number of persons in each home guard unit 410 and the number of persons in the whole house. Also, as shown in FIG. 26A, if a human sensor 418 is installed in a place such as a window where no humans normally enter and exit, the presence or absence of an intruder can be detected and reported. The intrusion determination processing shown in FIG. 36 is one example. In the intrusion determination process, the home guard unit 410 determines whether both the areas IL and IR are insensitive (S2471), and if affirmative, determines whether any of the areas OL and OR is sensitive. (S2
472). If an affirmative determination is made here, it is determined whether one of the areas IL and IR is felt (S2473). If an affirmative determination is made, a person outside the window or the like may be deemed to have entered the inside. The data is output (S2474).

This intrusion signal is transmitted to the home computer 12
6 and the home computer 126 contacts the owner, security company, etc. in the emergency contact process (S2700) according to the priority order illustrated in FIG. In addition,
Since the home guard unit 410 itself has a communication function, the home guard unit 410 can be configured to directly contact the owner, security company, or the like without using the home computer 126. Also, the home computer 126 or the home guard unit 4
Along with contacting the owner, security company, or the like by 10, a notification can be made to a terminal inside the house or an alarm can be generated.

The gas monitoring process executed by the home guard unit 410 is as shown in FIG. 37. First, a signal from the composite gas sensor 420 is input (S2511), and if gas is detected (S2512: YES), A gas type signal indicating the type of the gas is output (S251).
3). This gas type signal is transmitted to the home computer 126.
The home computer 126 communicates with the owner, the gas company, and the like in the emergency contact process (S2700) in accordance with the priority order illustrated in FIG. Since the home guard unit 410 itself has a communication function, the home guard unit 410 can be configured to directly contact the owner, a gas company, or the like without using the home computer 126. Also, the home computer 126 or the home guard unit 41
In addition to contacting the owner or the gas company with 0, a notification can be made to a terminal inside the house or an alarm sound can be generated.

The unmanned / manned judgment processing by the home computer 126 is performed according to the procedure shown in FIG. In this process, the home computer 126 first reads the position of the priority pattern selection switch (S2811), reads the weekly timer (S2812), reads the number of occupants of each room from the occupancy table (S2813), The position of the setting switch is read (S281).
4).

Next, a priority pattern is determined according to the position of the priority pattern selection switch (S2815). If the position of the priority pattern selection switch is set to the timer, the timer is set to the priority (S2816), and it is determined whether or not the weekly timer is set to the unmanned time (S2).
817), if it is not an unattended time (S2817: NO), it is set to a manned state (S2822), and if it is an unattended time (S281).
7: YES) Unattended state (S2823).

If the position of the priority pattern selection switch is the entry / exit number, the entry / exit number priority is set (S281).
8) It is determined whether or not the person is unoccupied based on the data read from the occupant number table (S2819).
19: YES) Unattended state (S2823), otherwise (S2819: NO) Manned state (S282)
4).

If the position of the priority pattern selection switch is set to the setting switch, the priority is set to the unmanned / manned switch (S2820), and it is determined whether the position of the unmanned / manned switch is “unmanned” (S2821). If it is "unmanned" (S2821: YES), it is set to the unmanned state (S28)
25) If it is “maned” (S2821: NO), it is set to a manned state (S2824).

The judgment of the unmanned state and the manned state in this processing is used in the unmanned state alert processing and the manned state alert processing.
As shown in FIG. 39, in the unmanned alert processing, first, it is determined whether or not the vehicle is in the unmanned state (S2911), and if it is not in the unmanned state (S2911: NO), the substantial processing is not performed.
If unattended (S2911: YES), the presence or absence of gas generation is determined based on a signal from the home guard unit 410 (S2912). If gas is generated, a transmission signal is determined, and FIG.
The contact information such as the owner or the gas company is determined in accordance with the priority order exemplified in (1) and written into the gas generation correspondence table (S29).
13). In the emergency contact processing (S2700), the transmission signal written here is transmitted to the written contact.

Next, the presence or absence of an intruder is determined based on a signal from the home guard unit 410 (S2914). The determination of the presence or absence of an intruder is performed by the above-described intrusion determination processing (FIG. 36).
Unlike the case of (1), it is determined whether or not there is a person not only in the window but also in the entire house. Then, if an intrusion occurs, a transmission signal is determined, contact information such as an owner or a security company is determined according to the priority order illustrated in FIG. 30, and written into the intrusion occurrence correspondence table (S2915). Emergency contact processing (S2700)
In, the transmission signal written here is transmitted to the written contact.

As shown in FIG. 40, in the manned alert processing, it is first determined whether or not a man is in the manned state (S301).
1) If not in a manned state (S3011: NO), no substantial processing is performed. If manned (S3011: YE
S), the manned alert range table is read (S301).
2), by a signal from the home guard unit 410,
It is determined whether or not there is a person in the range in which the alert is set (S3013). If there is a person in any of the alert ranges (that is, if there is a suspicious person, S3013: YES), On the other hand, a manned alert signal is output, and an alarm sound is output (S3014).

[0108] Regardless of whether the house is unmanned or manned, abnormalities such as intrusion, gas or fire can be detected and reported to the set free side terminal, telephone, facsimile or the like. Can respond appropriately and promptly.
Since a plurality of report destinations can be set and priorities are assigned to them, even if a report cannot be made to one or two report destinations, a report can be made to any report destination. Therefore, it is possible to surely report.

Further, since the safety of the house can be confirmed at a place where the user is going out, it is possible to go out with peace of mind. As described above, the embodiments of the present invention have been described according to the examples. However, it is needless to say that the present invention is not limited to such examples, and can be variously implemented without departing from the gist of the present invention.

For example, in the embodiment, the result of sensing by the home guard unit 410 is
Accepts and contacts the mobile terminal 200, security company, gas company, etc.
6, the home guard unit 410 can directly contact the owner, the gas company, or the like. In addition, the home computer 126 is directly connected to sensing units such as the human sensor 418, the composite gas sensor 420, and the photographing device 416 of the entire house, that is, the home computer 126 itself is used as the main body of the home guard unit 410 to monitor the entire house. Alternatively, a dedicated home guard central terminal may be used instead of the home computer 126.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a schematic configuration of a communication system according to an embodiment.

FIG. 2 is an explanatory diagram of a connection path between a home facility control center and a house (company) in the communication system of the embodiment.

FIG. 3 is an explanatory diagram of a connection path in a house (company) in the communication system according to the embodiment.

FIG. 4 is an explanatory diagram of a structure of a remote control unit provided in electric equipment in the communication system according to the embodiment.

FIG. 5 is an explanatory diagram of a personal computer as a free terminal in the communication system according to the embodiment;
5A is an explanatory diagram of a connection state with a LAN, and FIG. 5B is a display example of a display.

FIG. 6 is a flowchart of a household facility control process executed by a personal computer as a free terminal in the communication system according to the embodiment.

FIG. 7 is a flowchart of a process executed by the household equipment control center in the communication system according to the embodiment.

FIG. 8 is a flowchart of a process executed by a remote control unit as a house terminal in the communication system of the embodiment.

9A and 9B are explanatory diagrams of the structure of the portable terminal according to the embodiment. FIG. 9A is a top view, FIG. 9B is a left side view, and FIG.
9 is a bottom view, FIG. 9D is a right side view, and FIG. 9E is a front view.

FIG. 10 is an explanatory diagram of the structure of the mobile terminal according to the embodiment;
FIG. 10A is a rear view, and FIG. 10B is a front view in a state where the drawer bar is expanded.

11A and 11B are explanatory diagrams of an interface device according to an embodiment. FIG. 11A is an explanatory diagram of a wired interface device, and FIG. 11B is an explanatory diagram of an infrared communication interface device.

FIG. 12 is a flowchart of a process executed by the portable terminal when controlling household equipment using the portable terminal in the communication system of the embodiment.

FIG. 13 is a flowchart of a process executed by a power distribution network unit in the communication system according to the embodiment.

FIG. 14 is a flowchart of a process executed by the household equipment control center when controlling the household equipment using the mobile terminal in the communication system of the embodiment.

FIG. 15 is a front view of the call terminal according to the embodiment.

FIG. 16 is a flowchart of a process executed when the call terminal according to the embodiment is used as an intercom.

FIG. 17 is a detailed flowchart of a confirmation process in FIG. 16;

FIG. 18 is a detailed flowchart of an individual call process of FIG.

FIG. 19 is a detailed flowchart of the all-member call process of FIG. 16;

FIG. 20 is a flowchart of a process executed by the household equipment control center when using the intercom function of the communication system according to the embodiment.

FIG. 21 is a flowchart of a process executed by the mobile terminal when using the intercom function of the communication system according to the embodiment.

FIG. 22 is a flowchart of a process executed by the household equipment control center to update table contents based on a signal from the portable terminal when using the intercom function of the communication system of the embodiment.

FIG. 23 is an explanatory diagram of an image terminal according to an embodiment.

FIG. 24 is an exemplary diagram of an image transmission terminal according to an embodiment.

FIG. 25 is a block diagram of a home guard unit of the embodiment.

26A and 26B are explanatory diagrams of detection of the home guard unit of the embodiment by a human sensor. FIG. 26A is an explanatory diagram of a detection range, and FIG. 26B is an explanatory diagram of a detection pattern.

FIG. 27 is a flowchart of a process executed by a home computer cooperating with the home guard unit of the embodiment.

FIG. 28 is a flowchart of a condition table setting process executed by the home computer.

29 is an explanatory diagram of manned alert setting, and FIG.
FIG. 29A shows an example of a warning range, and FIG. 29B shows an example of setting of a setting switch.

FIG. 30 is a view showing an example of contact setting.

FIG. 31 is a flowchart of an entrance monitoring process shown in FIG. 27.

FIG. 32 is a flowchart of a one-area sensing process executed by the home guard unit.

FIG. 33 is a flowchart of the number-of-entry calculation process executed by the home guard unit.

FIG. 34 is a flowchart of a number calculation process executed by the home guard unit.

FIG. 35 is a flowchart of an occupancy status grasping process executed by the home computer.

FIG. 36 is a flowchart of an intrusion determination process executed by the home guard unit.

FIG. 37 is a flowchart of a gas monitoring process shown in FIG. 27.

FIG. 38 is a flowchart of an unmanned / manned judgment process shown in FIG. 27.

FIG. 39 is a flowchart of an unattended warning process shown in FIG. 27;

40 is a flowchart of the manned alert processing shown in FIG. 27.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 100 ... Communication system 104 ... Distribution network 106 ... Communication network 107 ... Optical cable (main line) 107a ... Optical cable (wiring system) 108 ... Household control center (center equipment) 109 ... Internet 110 ... House (building) 112 ... Company ( 114) Service line 116 ... Power distribution network unit 118 ... Personal computer (free side terminal) 120 ... LAN 122 ... Transceiver 124 ... Indoor wiring (power supply line) 126 ... Home computer (house side terminal) 128 ... Electric equipment (electricity) 130) Remote control unit (house side terminal) 136 ... Communication unit (interface) 138 ... Electronic control unit (house side terminal) 200 ... Portable terminal (free side terminal) 250 ... Interface device (interface) 300 ... Interface device (interface) ) 350: Call terminal (house side terminal) 368 ... Image terminal (house side terminal) 378 ... Image terminal (house side terminal) 380 ... Image transmission terminal (house side terminal) 390 ... Image transmission terminal (house side terminal) 400 ... Image transmission terminal (house side terminal) 410 ... home guard unit (house side terminal) 416 ... photographing device (abnormality detection means) 418 ... person sensor (abnormality detection means) 420 ... complex gas sensor (abnormality detection means)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K046 AA03 BB06 PP01 PS05 PS34 PS41 YY01 ZZ19 5K048 AA11 BA07 BA12 BA13 DC06 DC07 DC08 EB02 HA01 HA02 5K101 KK11 KK14 LL01

Claims (5)

[Claims] A house-side terminal connected to a power supply line wired to a building such as a house via an interface; a free-side terminal whose installation location is not particularly limited; A center device that can communicate with the house side terminal and includes the free side terminal and a center device that mediates communication with the house side terminal specified by the free side terminal or specified in accordance with the free side terminal. A communication system characterized by the following. 2. The communication system according to claim 1, wherein the free side terminal is connected to the power supply line via an interface, and communication between the free side terminal and the center device is connected to the free side terminal. Communication system performed through a power supply line. 3. The communication system according to claim 1, wherein the house-side terminal controls electrical equipment in accordance with an instruction from the free-side terminal acquired via the center device. . 4. The communication system according to claim 1, wherein the house side terminal sends a detection result of abnormality detection means for detecting any one of a fire, a gas leak, and an intrusion to the center device. A communication system, comprising: 5. The communication system according to claim 1, wherein said center device is a free side specified by said house side terminal and said house side terminal or specified in accordance with said house side terminal. A communication system, which mediates communication with a terminal or mediates communication between the free side terminal and another free side terminal specified by or specified in accordance with the free side terminal. .